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Journal articles on the topic 'Cyclohexane-1'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Frolov, A. S., E. A. Kurganova, E. M. Yarkina, N. V. Lebedeva, G. N. Koshel, and A. S. Kalenova. "INTENSIFICATION OF THE CYCLOHEXANE LIQUID PHASE OXIDATION PROCESS." Fine Chemical Technologies 13, no. 4 (2018): 50–57. http://dx.doi.org/10.32362/2410-6593-2018-13-4-50-57.

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Liquid-phase oxidation of cyclohexane to cyclohexanol and cyclohexanone was studied in the absence of solvents under an air pressure of 0.5-5 MPa, in the temperature range 115-150 °C, catalyzed by N-hydroxyphthalimide (N-HPI). It was established for the first time that the use of N-HPI as a catalyst in place of the conventionally used metal salts of variable valence allowed a 2-3-fold increase in the conversion of the initial hydrocarbon and selectivity from 70-75 to 90%. The combined use of N-HPI with cobalt(II) acetate results in an additional increase in the conversion of cyclohexane by 30-

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2

Wang, Lei, Ming Qiao Zhu, Jian Gang Lu, and Hong Ding Hu. "Uncatalyzed Oxidation of Cyclohexane in the Microchannels." Key Engineering Materials 562-565 (July 2013): 1542–47. http://dx.doi.org/10.4028/www.scientific.net/kem.562-565.1542.

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The oxidation of cyclohexane in the microchannels not only improves the safety of the reaction, but also the performance of the oxidation reaction. Different gas-liquid micro mixers were used for the mixing of gas and liquid before entering into microchannels, and SIMM-V2 performed best of all. Excellent slug/plug flow can be formed in the microchannels after mixing in the gas-liquid micro mixer when the molar ratio of oxygen to cyclohexane is less than 0.5:1. The conversion of cyclohexane increased as the residence time increased, but the selectivity of cyclohexanol and cyclohexanone increase

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3

Lesbani, Aldes, Fatmawati Fatmawati, Risfidian Mohadi, Najma Annuria Fithri, and Dedi Rohendi. "Oxidation of Cyclohexane to Cylohexanol and Cyclohexanone Over H₄[a-SiW₁₂O₄₀]/TiO₂ Catalyst." Indonesian Journal of Chemistry 16, no. 2 (2018): 175. http://dx.doi.org/10.22146/ijc.21161.

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Oxidation of cyclohexane to cyclohexanol and cyclohexanone was carried out using H4[a-SiW12O40]/TiO2 as catalyst. In the first experiment, catalyst H4[a-SiW12O40]/TiO2 was synthesized and characterized using FTIR spectroscopy and X-Ray analysis. In the second experiment, catalyst H4[a-SiW12O40]/TiO2 was applied for conversion of cyclohexane. The conversion of cyclohexane was monitored using GC and GCMS. The results showed that H4[a-SiW12O40]/TiO2 was successfully synthesized using 1 g of H4[a-SiW12O40] and 0.5 g of TiO2. The FTIR spectrum showed vibration of H4[a-SiW12O40] appeared at 771-979

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4

Rekkab-Hammoumraoui, Ilhem, and Abderrahim Choukchou-Braham. "Catalytic Properties of Alumina-Supported Ruthenium, Platinum, and Cobalt Nanoparticles towards the Oxidation of Cyclohexane to Cyclohexanol and Cyclohexanone." Bulletin of Chemical Reaction Engineering & Catalysis 13, no. 1 (2018): 24. http://dx.doi.org/10.9767/bcrec.13.1.1226.24-35.

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A series of metal-loaded (Ru, Pt, Co) alumina catalysts were evaluated for the catalytic oxidation of cyclohexane using tertbutylhydroperoxide (TBHP) as oxidant and acetonitrile or acetic acid as solvent. These materials were prepared by the impregnation method and then characterized by Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES), H2 chemisorption, Fourier Transformed Infrared Spectroscopy (FTIR), High-Resolution Transmission Electron Microscopy (HRTEM), and X-ray Diffraction (XRD). All the prepared materials acted as efficient catalysts. Among them, Ru/Al2O3 was found t

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5

Lesbani, Aldes, Menik Setyowati, Risfidian Mohadi та Dedi Rohendi. "Oxidation Of Cyclohexane To Cyclohexanol And Cyclohexanone Using H4[α-SiW12O40]/Zr As Catalyst". Molekul 11, № 1 (2016): 53. http://dx.doi.org/10.20884/1.jm.2016.11.1.194.

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Synthesis and preparation of polyoxometalate H4[α-SiW12O40].nH2O with Zr as support at various weights of Zr 0.01g; 0.05 g; 0.25 g; 0.5 g; 0.75 g; 1 g and 1.25 g to form H4[α- SiW12O40]/Zr was conducted. The compounds from preparation were characterized using FTIR spectroscopy and crystallinity analysis using X-Ray diffraction. Thus H4[α- SiW12O40]/Zr was applied as catalyst for oxidation of cyclohexane to cyclohexanol and cyclohexanone. Oxidation process was studied through reaction time, hydrogen peroxide amount, temperature, and weight of catalyst. FTIR spectrum of H4[α-SiW12O40]/Zr was app

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6

Hwang, Kuo Chu, and Arunachalam Sagadevan. "One-pot room-temperature conversion of cyclohexane to adipic acid by ozone and UV light." Science 346, no. 6216 (2014): 1495–98. http://dx.doi.org/10.1126/science.1259684.

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Nitric acid oxidation of cyclohexane accounts for ~95% of the worldwide adipic acid production and is also responsible for ~5 to 8% of the annual worldwide anthropogenic emission of the ozone-depleting greenhouse gas nitrous oxide (N2O). Here we report a N2O-free process for adipic acid synthesis. Treatment of neat cyclohexane, cyclohexanol, or cyclohexanone with ozone at room temperature and 1 atmosphere of pressure affords adipic acid as a solid precipitate. Addition of acidic water or exposure to ultraviolet (UV) light irradiation (or a combination of both) dramatically enhances the oxidati

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7

Song, Hua, Hua Lin Song, and Zai Shun Jin. "Preparation and Catalytic Performance of Co-Mo/V₂O₅ Composite Catalyst for Selective Oxidation of Cyclohexane." Advanced Materials Research 485 (February 2012): 76–79. http://dx.doi.org/10.4028/www.scientific.net/amr.485.76.

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A new type composite catalyst Co-Mo/V2O5 was prepared by immersion method and characterized by XRD, BET and FT-IR. The effects of Mo mass fraction, immersion time and calcination temperature on catalyst activity for oxidation of cyclohexane were investigated. Co-Mo/V2O5 subjected to immersion with 20% ammonium molybdate solution at room temperature for 1 h and calcination at 600°C exhibited the best performance. Using 0.5 ml of cyclohexane, 3 ml of hydrogen peroxide and 30 mg of catalyst at a reaction temperature of 65°C for 3 h, the cyclohexane conversion was 32.3% and the total selectivity t

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8

Pokutsa, Alexander, Pawel Bloniarz, Orest Fliunt, Yuliya Kubaj, Andriy Zaborovskyi, and Tomasz Paczeŝniak. "Sustainable oxidation of cyclohexane catalyzed by a VO(acac)2-oxalic acid tandem: the electrochemical motive of the process efficiency." RSC Advances 10, no. 18 (2020): 10959–71. http://dx.doi.org/10.1039/d0ra00495b.

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Cyclohexane oxidation by H<sub>2</sub>O<sub>2</sub> to cyclohexanol, cyclohexanone, and cyclohexylhydroperoxide under mild (40 °C, 1 atm) conditions is significantly enhanced in the system composed of VO(acac)<sub>2</sub> (starting catalyst) and small additives of oxalic acid (process promoter).

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9

Kurganova, E. A., A. S. Frolov, S. A. Kanaev, et al. "Epoxidation of cyclohexene with cyclohexyl hydroperoxide." Fine Chemical Technologies 18, no. 6 (2024): 505–16. http://dx.doi.org/10.32362/2410-6593-2023-18-6-505-516.

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Objectives. To investigate the regularities of the process of joint production of epoxycyclohexane, cyclohexanol, and cyclohexanone using the cyclohexene epoxidation reaction with cyclohexyl hydroperoxide in the presence of an ammonium paramolybdate catalyst, representing an alternative to the method of cyclohexanol and cyclohexanone synthesis by alkaline catalytic decomposition of cyclohexyl hydroperoxide.Methods. The qualitative and quantitative analysis of the obtained intermediate and target compounds was determined using modern physicochemical research methods: gas–liquid chromatography u

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10

Fahy, Kira, Adam Liu, Kelsie Barnard, Valerie Bright, Robert Enright, and Patrick Hoggard. "Photooxidation of Cyclohexane by Visible and Near-UV Light Catalyzed by Tetraethylammonium Tetrachloroferrate." Catalysts 8, no. 9 (2018): 403. http://dx.doi.org/10.3390/catal8090403.

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Tetraethylammonium tetrachloroferrate catalyzes the photooxidation of cyclohexane heterogeneously, exhibiting significant photocatalysis even in the visible portion of the spectrum. The photoproducts, cyclohexanol and cyclohexanone, initially develop at constant rates, implying that the ketone and the alcohol are both primary products. The yield is improved by the inclusion of 1% acetic acid in the cyclohexane. With small amounts of catalyst, the reaction rate increases with the amount of catalyst employed, but then passes through a maximum and decreases, due to increased reflection of the inc

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11

Roy Barman, Tannistha, Manas Sutradhar, Elisabete C. B. A. Alegria, Maria de Fátima C. Guedes da Silva, and Armando J. L. Pombeiro. "Fe(III) Complexes in Cyclohexane Oxidation: Comparison of Catalytic Activities under Different Energy Stimuli." Catalysts 10, no. 10 (2020): 1175. http://dx.doi.org/10.3390/catal10101175.

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In this study, the mononuclear Fe(III) complex [Fe(HL)(NO3)(H2O)2]NO3 (1) derived from Nʹ-acetylpyrazine-2-carbohydrazide (H2L) was synthesized and characterized by several physicochemical methods, e.g., elemental analysis, infrared (IR) spectroscopy, electrospray ionization mass spectrometry (ESI-MS), and single crystal X-ray diffraction analysis. The catalytic performances of 1 and the previously reported complexes [Fe(HL)Cl2] (2) and [Fe(HL)Cl(μ-OMe)]2 (3) towards the peroxidative oxidation of cyclohexane under three different energy stimuli (microwave irradiation, ultrasound, and conventio

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12

Gao, Su Ling, Tai Xuan Jia, and Zi Li Liu. "Catalyzed Oxidation of Cyclohexane over Co-Bi₂(MoO₄)₃ Catalysts." Advanced Materials Research 550-553 (July 2012): 354–57. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.354.

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The effect of catalyst on the performance of liquid-phase selective oxidation of cyclohexane as probe reaction over Co-Bi2(MoO4)3 prepared by precipitation method was investigated. The catalyst evaluation results show that the optimum catalyst atomic ratio is n(Mo):n(Bi):n(Co)=1.5:1:0.2 with high selecivity under certain conversion. Meanwhile selective oxidation of Bi2(MoO4)3 was slowed down, selecivity of cyclohexanone and cyclohexanol reached 74.1%, 22.2% respectively.The main composition of the catalyst is Bi2(MoO4)3. Co-Bi2(MoO4)3 had new catalyst sites with Bi3+, Mo6+ and Co2+ having a co

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13

Guo, Can-Cheng, Xiao-Qin Liu, Qiang Liu, Yang Liu, Ming-Fu Chu, and Wei-Ying Lin. "First industrial-scale biomimetic oxidation of hydrocarbon with air over metalloporphyrins as cytochrome P-450 monooxygenase model and its mechanistic studies." Journal of Porphyrins and Phthalocyanines 13, no. 12 (2009): 1250–54. http://dx.doi.org/10.1142/s1088424609001613.

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A novel industrial-scale trial for cyclohexane oxidation with air over metalloporphyrins as cytochrome P-450 monooxygenase model was reported. Upon addition of extremely low concentrations (1–5 ppm) of simple cobalt porphyrin to the commercial cyclohexane oxidation system, and decrease of the reaction temperature and pressure about 20 °C and 0.4 MPa respectively, the conversion rate of the cyclohexane oxidation increased from 4.8% to 7.1%, the yield of cyclohexanone raised from 77% to 87%, and a 70,000-ton cyclohexanone equipment set yielded an output of 125,000 tons cyclohexanone. Furthermore

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14

Tiago, Gonçalo, Ana Ribeiro, M. C. Guedes da Silva, Kamran Mahmudov, Luís Branco, and Armando Pombeiro. "Copper(II) Complexes of Arylhydrazone of 1H-Indene-1,3(2H)-dione as Catalysts for the Oxidation of Cyclohexane in Ionic Liquids." Catalysts 8, no. 12 (2018): 636. http://dx.doi.org/10.3390/catal8120636.

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The copper(II) complexes [CuL(H2O)2]∙H2O (1) and [CuL(dea)] (2) [L = 2-(2-(1,3-dioxo-1H-inden-2(3H)-ylidene)hydrazinyl)benzenesulfonate, dea = diethanolamine] were applied as catalysts in the peroxidative (with tert-butyl-hydroperoxide or hydrogen peroxide) conversion of cyclohexane to cyclohexanol and cyclohexanone, either in acetonitrile or in any of the ionic liquids [bmim][NTf2] and [hmim][NTf2] [bmim = 1-butyl-3-methylimidazolium, hmim = 1-hexyl-3-methylimidazolium, NTf2 = bis(trifluoromethanesulfonyl) imide]. Tert-butyl-hydroperoxide led to better product yields, as compared to H2O2, wit

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15

Mkhondwane, Siphumelele Thandokwazi, та Viswanadha Srirama Rajasekhar Pullabhotla. "Highly Selective pH-Dependent Ozonation of Cyclohexane over Mn/γ-Al2O3 Catalysts at Ambient Reaction Conditions". Catalysts 9, № 11 (2019): 958. http://dx.doi.org/10.3390/catal9110958.

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The selective oxidation of cyclohexane to a mixture of cyclohexanol and cyclohexanone (KA oil) is one of the imperative reactions in industrial processes. In this study, the catalytic performance of manganese-supported gamma alumina (Mn/γ-Al2O3) catalysts is investigated in the selective oxidation of cyclohexane at ambient conditions using ozone. The catalysts were prepared by the wet impregnation method, and their physio-chemical properties were studied by Fourier Transform Infrared (FT-IR) spectroscopy, X-ray diffraction (XRD) spectroscopy, Scanning Electron Microscopy-Energy Dispersive X-ra

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16

Sadiq, Mohammad, Mashooq Khan, Muhammad Numan, et al. "Tuning of Activated Carbon for Solvent-Free Oxidation of Cyclohexane." Journal of Chemistry 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/5732761.

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Activated carbon (AC) was prepared from carbonization of phosphoric acid soaked peanut shell at 380°C under inert atmosphere followed by activation with hydrogen peroxide. The AC was characterized by SEM, EDX, FTIR, TGA, and BET surface area and pore size analyzer. The potential of AC as a catalyst for solvent-free oxidation of cyclohexane to cyclohexanol and cyclohexanone (the mixture is known as KA oil) in the presence of molecular oxygen at moderate temperature was investigated in a self-designed double-walled three-necked batch reactor. The effect of different reaction parameters/additive

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17

Kirkwood, Kathleen, and S. David Jackson. "Hydrogenation and Hydrodeoxygenation of Oxygen-Substituted Aromatics over Rh/silica: Catechol, Resorcinol and Hydroquinone." Catalysts 10, no. 5 (2020): 584. http://dx.doi.org/10.3390/catal10050584.

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The hydrogenation and hydrodeoxygenation (HDO) of dihydroxybenzene isomers, catechol (1,2-dihydroxybenzene), resorcinol (1,3-dihydroxybenzene) and hydroquinone (1,4-dihydroxybenzene) was studied in the liquid phase over a Rh/silica catalyst at 303–343 K and 3 barg hydrogen pressure. The following order of reactivity, resorcinol > catechol > hydroquinone (meta > ortho > para) was obtained. Kinetic analysis revealed that catechol had a negative order of reaction whereas both hydroquinone and resorcinol gave positive half-order suggesting that catechol is more strongly adsorbed. Activ

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18

Kavitha, T., S. Ponnuswamy, R. Vijayalakshmi, M. Thenmozhi, and M. N. Ponnuswamy. "Cyclohexane-1-spiro-2′-imidazolidine-5′-spiro-1′′-cyclohexan-4′-one." Acta Crystallographica Section E Structure Reports Online 66, no. 5 (2010): o1072. http://dx.doi.org/10.1107/s1600536810012468.

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19

Sazegar, Mohammad Reza, Aysan Dadvand, and Ali Mahmoudi. "Novel protonated Fe-containing mesoporous silica nanoparticle catalyst: excellent performance cyclohexane oxidation." RSC Advances 7, no. 44 (2017): 27506–14. http://dx.doi.org/10.1039/c7ra02280h.

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20

Elmes, BC, G. Holan, GT Wernert, and DA Winkler. "The Synthesis of Bisguanidinoalkanes and Guanidinoalkanes, N- or N'-Substituted With Pyrimidines, as Analogues of Chlorhexidine." Australian Journal of Chemistry 49, no. 5 (1996): 573. http://dx.doi.org/10.1071/ch9960573.

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A series of N,N???- alkanediylbis [N?-(5-halopyrimidin-2-yl)guanidine] salts has been synthesized along with N,N???-(trans-cyclohexane-1,4-diyl) bis [N'-(5-chloropyrimidin-2-yl)guanidine], N,N???-(cis-cyclohexane-1,4-diyl) bis [N?-(5-chloropyrimidin-2-yl)guanidine] dihydrochloride and N-(cis-4-amino-cyclohexan-1-yl)-N'-(5-chloropyrimidin-2-yl)guanidine dihydrochloride . Furthermore, a series of N-(alkan-1-yl)-N?-(5-chloropyrimidin-2yl)guanidine hydrochlorides and N-(6-aminohexan-1-yl)-N?-(5-chloropyrimidin-2-yl)guanidine dihydrochloride were synthesized. This series of compounds was prepared b

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21

Gao, Liang, Tao Jiang, Buxing Han, Baoning Zong, Xiaoxin Zhang, and Jicheng Zhang. "Influence of Compressed Carbon Dioxide on the Oxidation of Cyclohexane with Hydrogen Peroxide in Acetic Acid." Australian Journal of Chemistry 59, no. 3 (2006): 225. http://dx.doi.org/10.1071/ch05331.

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The oxidation of cyclohexane with H2O2 in a compressed CO2/acetic acid binary system was studied at 60.0 and 80.0°C, at pressures up to 18 MPa, and with the zeolite TS-1 as catalyst. The phase behaviour of the reaction system was also observed. There are three fluid phases in the reaction system at lower pressure but two at higher pressures. In the three-phase region the yields of the products, cyclohexanol and cyclohexanone, increase considerably with increasing pressure and reaches a maximum near the phase-separating pressure. CO2 can thus enhance the reaction effectively. However, the effec

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22

Sutradhar, Manas, Tannistha Barman, Armando Pombeiro, and Luísa Martins. "Catalytic Activity of Polynuclear vs. Dinuclear Aroylhydrazone Cu(II) Complexes in Microwave-Assisted Oxidation of Neat Aliphatic and Aromatic Hydrocarbons." Molecules 24, no. 1 (2018): 47. http://dx.doi.org/10.3390/molecules24010047.

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One-dimensional (1D) polynuclear Cu(II) complex (1) derived from (5-bromo-2-hydroxybenzylidene)-2-hydroxybenzohydrazide (H2L) is synthesized and characterized by elemental analysis, IR spectroscopy, ESI-MS, and single crystal X-ray crystallography. Its catalytic performance towards the solvent-free microwave-assisted peroxidative oxidation of aliphatic and aromatic hydrocarbons under mild conditions is compared with that of dinuclear Cu(II) complexes (2 and 3) of the same ligand, previously reported as antiproliferative agents. Polymer 1 exhibits the highest activity, either for the oxidation

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23

Lin, Jin, Shan-Sheng Xu, and Hai-Bin Song. "1-Ferrocenyl-1-(1-indenyl)cyclohexane." Acta Crystallographica Section E Structure Reports Online 61, no. 10 (2005): m1968—m1969. http://dx.doi.org/10.1107/s1600536805028308.

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24

Chen, Xi, Dong-Li An, Xin-Qi Zhan, and Zhao-Hui Zhou. "2-Methylimidazole Copper Iminodiacetates for the Adsorption of Oxygen and Catalytic Oxidation of Cyclohexane." Molecules 25, no. 6 (2020): 1286. http://dx.doi.org/10.3390/molecules25061286.

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The mixed-ligand copper(II) iminodiacetates [Cu(ida)(2-mim)(H2O)2]·H2O (1), [Cu(ida)(2-mim)2]·2H2O (2), [Cu(ida)(2-mim)(H2O)]n·4.5nH2O (3), and [Cu2(ida)2(2-mim)2]n·nH2O (4) (H2ida = iminodiacetic acid, 2-mim = 2-methylimidazole) were obtained from neutral or alkaline solutions at different temperatures. The novel complex 4 contains very small holes with diameters of 2.9 Å, which can adsorb O2 selectively and reversibly between 1.89 to 29.90 bars, compared with the different gases of N2, H2, CO2, and CH4. This complex is stable up to 150 °C based on thermal analyses and XRD patterns. The four

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25

Kirillova, Marina V., Polyana Tomé de Paiva, Wagner A. Carvalho, Dalmo Mandelli, and Alexander M. Kirillov. "Mixed-ligand aminoalcohol-dicarboxylate copper(II) coordination polymers as catalysts for the oxidative functionalization of cyclic alkanes and alkenes." Pure and Applied Chemistry 89, no. 1 (2017): 61–73. http://dx.doi.org/10.1515/pac-2016-1012.

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AbstractNew copper(II) catalytic systems for the mild oxidative C–H functionalization of cycloalkanes and cycloalkenes were developed, which are based on a series of mixed-ligand aminoalcohol-dicarboxylate coordination polymers, namely [Cu2(μ-dmea)2(μ-nda)(H2O)2]n·2nH2O (1), [Cu2(μ-Hmdea)2(μ-nda)]n·2nH2O (2), and [Cu2(μ-Hbdea)2(μ-nda)]n·2nH2O (3) that bear slightly different dicopper(II) aminoalcoholate cores, as well as on a structurally distinct dicopper(II) [Cu2(H4etda)2(μ-nda)]·nda·4H2O (4) derivative [abbreviations: H2nda, 2,6-naphthalenedicarboxylic acid; Hdmea, N,N′-dimethylethanolamine

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26

Li, Yunhua, Xin Yang, Linhui Zhu, Hua Zhang, and Binghui Chen. "Hydrodeoxygenation of phenol as a bio-oil model compound over intimate contact noble metal–Ni2P/SiO2 catalysts." RSC Advances 5, no. 98 (2015): 80388–96. http://dx.doi.org/10.1039/c5ra11203f.

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1% Pd–10% Ni<sub>2</sub>P/SiO<sub>2</sub>, from a Ni<sub>2</sub>P reducing noble metal precursor, presents a high activity and cyclohexanol or cyclohexane selectivity due to more active sites and electrons transferring from Ni<sub>2</sub>P to the noble metal.

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27

Bilyachenko, Alexey N., Victor N. Khrustalev, Evgenii I. Gutsul, et al. "Hybrid Silsesquioxane/Benzoate Cu7-Complexes: Synthesis, Unique Cage Structure, and Catalytic Activity." Molecules 27, no. 23 (2022): 8505. http://dx.doi.org/10.3390/molecules27238505.

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A series of phenylsilsesquioxane-benzoate heptacopper complexes 1–3 were synthesized and characterized by X-ray crystallography. Two parallel routes of toluene spontaneous oxidation (into benzyl alcohol and benzoate) assisted the formation of the cagelike structure 1. A unique multi-ligation of copper ions (from (i) silsesquioxane, (ii) benzoate, (iii) benzyl alcohol, (iv) pyridine, (v) dimethyl-formamide and (vi) water ligands) was found in 1. Directed self-assembly using benzoic acid as a reactant afforded complexes 2–3 with the same main structural features as for 1, namely heptanuclear cor

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28

Dietz, Wibke, Yvonne Schwerdtfeger, Uwe Klingebiel та Mathias Noltemeyer. "Bis(1-cyclohexen-3-on-1-oxy)silane, Silyl-enole von β-Ketonen/ Bis (1-cyclohexene-3-on-1-oxy)silanes, Silyl-enoles of β -Ketones". Zeitschrift für Naturforschung B 62, № 11 (2007): 1371–76. http://dx.doi.org/10.1515/znb-2007-1104.

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5,5-Dimethylcyclohexane-1,3-dione (dimedone) and cyclohexane-1,3-dione react with Cl2Si(CMe3)2 in the presence of triethylamine to give the bis(1-cyclohexene-3-on-1-oxy)dit butylsilanes 2 and 3. Using dimedone and Cl2SiMe2, the analogous dimethylsilane 1 is obtained. A 1,4-Michael-Addition occurs using cyclohexane-1,3-dione in the reaction with Cl2SiMe2 to give a spirocyclic diketone (4). The reaction of cyclohexane-1,3-dione with lithium-diisopropylamide and F3SiCMe3 leads to the formation of a salt [iPr2NH2]2HF[C6H7O2]2, 5. The crystal structures of 2 - 5 were determined.

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29

Richard, Bradley, Mohammad Azmi Bustam, and Girma Gonfa. "Separation of Benzene and Cyclohexane with Mixed Solvent Using Extractive Distillation." Applied Mechanics and Materials 625 (September 2014): 578–81. http://dx.doi.org/10.4028/www.scientific.net/amm.625.578.

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Isothermal Vapour-liquid equilibrium for cyclohexane (1) + benzene (2) binary system, cyclohexane (1) + benzene (2) dimethylformamide (3) ternary system and cyclohexane (1) + benzene (2) dimethylformamide (3) + cosolvent (4) quaternary systems were obtained. The effects of cosolvents (diethyl glycol, dimethylsulfoxide, N-methylformamide) on the performance of dimethylformamide in benzene-cyclohexane separation were studied. The result shows the selected cosolvents suppress the effectiveness of dimethylformamide. The result also shows that the ratio of cosolvents to dimethylformamide affects th

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Sutradhar, Manas, Elisabete Alegria, M. Guedes da Silva, Cai-Ming Liu, and Armando Pombeiro. "Peroxidative Oxidation of Alkanes and Alcohols under Mild Conditions by Di- and Tetranuclear Copper (II) Complexes of Bis (2-Hydroxybenzylidene) Isophthalohydrazide." Molecules 23, no. 10 (2018): 2699. http://dx.doi.org/10.3390/molecules23102699.

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Bis(2-hydroxybenzylidene)isophthalohydrazide (H4L) has been used to synthesize the dinuclear [Cu2(1κNO2:2κN′O′2-H2L)(NO3)2(H2O)2] (1) and the tetranuclear [Cu4(μ-1κNO2:2κN′O2-H2L)2(μ-NO3)2(H2O)4]·2C2H5OH (2) complexes. The solvent plays an important role in determining the ligand behaviour in the syntheses of the complexes. An ethanol-acetonitrile mixture of solvents favours partials enolization in the case of 2. Both complexes have been characterized by elemental analysis, infrared radiation (IR), single crystal X-ray crystallography and electrochemical methods. The variable temperature magne

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31

Palion-Gazda, Joanna, André Luz, Luis R. Raposo, et al. "Vanadium(IV) Complexes with Methyl-Substituted 8-Hydroxyquinolines: Catalytic Potential in the Oxidation of Hydrocarbons and Alcohols with Peroxides and Biological Activity." Molecules 26, no. 21 (2021): 6364. http://dx.doi.org/10.3390/molecules26216364.

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Methyl-substituted 8-hydroxyquinolines (Hquin) were successfully used to synthetize five-coordinated oxovanadium(IV) complexes: [VO(2,6-(Me)2-quin)2] (1), [VO(2,5-(Me)2-quin)2] (2) and [VO(2-Me-quin)2] (3). Complexes 1–3 demonstrated high catalytic activity in the oxidation of hydrocarbons with H2O2 in acetonitrile at 50 °C, in the presence of 2-pyrazinecarboxylic acid (PCA) as a cocatalyst. The maximum yield of cyclohexane oxidation products attained was 48%, which is high in the case of the oxidation of saturated hydrocarbons. The reaction leads to the formation of a mixture of cyclohexyl hy

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32

Martine, Beth A., Brooke H. Blake-Taylor, and William E. Acree, Jr. "Solubility Of Anthracene in Ternary Cyclohexane + Propanol + 1-Pentanol and Cyclohexane + Butanol + 1-Pentanol Mixtures." Journal of Chemical & Engineering Data 53, no. 2 (2008): 556–58. http://dx.doi.org/10.1021/je700688z.

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33

Lu, Gongxuan, Huanxing Gao, Jishuan Suo, and Shuben Li. "Catalytic oxidation of cyclohexane into cyclohexanol and cyclohexanone over a TiO2/TS-1 system by dioxygen under UV irradiation." Journal of the Chemical Society, Chemical Communications, no. 21 (1994): 2423. http://dx.doi.org/10.1039/c39940002423.

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34

Mohammed, Baraa Kasim, та Enaam Ismail Yousi. "New Metal Complexes with Mannich -β-amino carbonyl ligand; Preparation, spectral Characterisation and Biological Activity." INTERNATIONAL JOURNAL OF DRUG DELIVERY TECHNOLOGY 14, № 03 (2024): 1676–82. http://dx.doi.org/10.25258/ijddt.14.3.60.

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New metal complexes and a new beta-amino maniche carbonyl ligand were prepared and characterized. (((4-(tert-butyl)-2-((S)- (phenylamino) (p-tolyl) methyl)cyclohexan-1-one)) (HL) was formed from the reaction of aniline and 4-methylbesaldehyde with 4- (tert-butyl)cyclohexane-1-one at a 1:1:1 mol ratio respectively reaction of (4-methyl-2-((R)-(phenylamino)(p-tolyl) methyl)cyclohexan-1-one (HL) and MnII, CoII, NiII, CuII, ZnII and CdII metal ions in a 2:1 (L:M) ratio led to the isolation of monomeric complexes from analytical and spectroscopic techniques including; elemental microanalysis, magne

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35

Hossain, MM, ME Halim, MM Islam, et al. "Michael 1:1 adducts by acid catalyzed reaction during synthesis of spiro and spiroketal compounds." Bangladesh Journal of Scientific and Industrial Research 55, no. 4 (2020): 283–88. http://dx.doi.org/10.3329/bjsir.v55i4.50967.

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Four Michael 1:1 adducts 2-[1,5-bis-(2-methoxyphenyl)-3-oxo-pent-4-enyl]-cyclohexane-1,3- dione 3a, 2-[1,5-bis-(2-methylphenyl)-3-oxo-pent-4-enyl]-cyclohexane-1,3-dione 3b, 2-[1,5-bis- (2-chlorophenyl)-3-oxo-pent-4-enyl]-cyclohexane-1, 3-dione 3c and 2-[1,5-Bis-(2-chloro- phenyl)- 3-oxo-pent-4-enyl]-5,5-dimethyl-cyclohexane-1,3-dione 3d have been synthesised by the application of Michael reaction between 1, 3-cyclohexanedione 1a or dimedone (5, 5-dimethylcy clohexane-1, 3-dione) 1b and trans,trans diarylideneacetone [1,5-diaryl-1,4-pentadien-3-one] 2a-c using acid catalyst. These adducts may b

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36

Mohamad Azmi, Bustam-Khalil, Abdul Hannan Muhamad, Girma Gonfa, and Zakaria Man. "Benzene and Cyclohexane Separation Using 1-Propanenitrile-3-butylimidazolium Dicyanamide Ionic Liquid." Advanced Materials Research 879 (January 2014): 58–62. http://dx.doi.org/10.4028/www.scientific.net/amr.879.58.

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Cyclohexane is mainly produced by catalytic hydrogenation of benzene, and the separation of unreacted benzene is very important process. However, the separation of benzene and cyclohexane mixture is one of the difficult separation processes in petrochemical industry. Presently, extractive distillation is commercially used to separate benzene and cyclohexane using molecular solvents. However, the current process suffers from process complexity and high-energy consumption. In this work, new ionic liquid, 1-propanenitrile-3-butylimidazolium dicyanamide was synthesized and applied for separation b

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37

Guzei, Ilia A., Lara C. Spencer, Eric Codner, and Joshua M. Boehm. "5′,11′-Dihydrodispiro[cyclohexane-1,6′-indolo[3,2-b]carbazole-12′,1′′-cyclohexane]." Acta Crystallographica Section E Structure Reports Online 68, no. 1 (2011): o1—o2. http://dx.doi.org/10.1107/s1600536811051208.

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38

Liu, Jian-Qiang. "4,4′-Bipyridine–cyclohexane-1,2,4,5-tetracarboxylic acid (1/1)." Acta Crystallographica Section E Structure Reports Online 66, no. 11 (2010): o2741. http://dx.doi.org/10.1107/s1600536810039024.

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39

Zhong, Kai-Long. "A novel three-dimensional ZnIIcoordination polymer with 1,3,5-tris(imidazol-1-ylmethyl)benzene and cyclohexane-1,3,5-tricarboxylate ligands." Acta Crystallographica Section C Structural Chemistry 70, no. 2 (2014): 189–93. http://dx.doi.org/10.1107/s2053229613034347.

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In the ZnIIcompound poly[[bis(μ3-cyclohexane-1,3,5-tricarboxylato)bis[μ3-1,3,5-tris(imidazol-1-ylmethyl)benzene]trizinc(II)] hexahydrate], {[Zn3(C18H18N6)2(C9H9O6)2]·6H2O}n, based on mixed 1,3,5-tris(imidazol-1-ylmethyl)benzene and cyclohexane-1,3,5-tricarboxylate ligands, there are two types of crystallographically independent ZnIIcentres, one in a general position and one on a crystallographic twofold axis. They have similar fourfold distorted tetrahedral coordination geometries, ligated by two monodentate carboxylate groups from two cyclohexane-1,3,5-tricarboxylate ligands and by two N atom

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40

Mouttaki, Housna, Mark A. Nanny, and Michael J. McInerney. "Cyclohexane Carboxylate and Benzoate Formation from Crotonate in Syntrophus aciditrophicus." Applied and Environmental Microbiology 73, no. 3 (2006): 930–38. http://dx.doi.org/10.1128/aem.02227-06.

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ABSTRACT The anaerobic, syntrophic bacterium Syntrophus aciditrophicus grown in pure culture produced 1.4 ï¿½ 0.24 mol of acetate and 0.16 ï¿½ 0.02 mol of cyclohexane carboxylate per mole of crotonate metabolized. [U-13C]crotonate was metabolized to [1,2-13C]acetate and [1,2,3,4,5,7-13C]cyclohexane carboxylate. Cultures grown with unlabeled crotonate and [13C]sodium bicarbonate formed [6-13C]cyclohexane carboxylate. Trimethylsilyl (TMS) derivatives of cyclohexane carboxylate, cyclohex-1-ene carboxylate, benzoate, pimelate, glutarate, 3-hydroxybutyrate, and acetoacetate were detected as interme

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41

Gonfa, Girma, and Azmi Mohamad Bustam. "Separation of benzene and cyclohexane azeotrope mixture using 1-ethyl-3-methylimidazolium ethyl sulfate ionic liquid using extractive distillation." Journal of Material and Process Technologies 1, no. 1 (2024): 18–22. http://dx.doi.org/10.69660/jmpt.v1i1.61.

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Most of the cyclohexane used for various industrial applications is largely produced through catalytic hydrogenation of benzene and the separation of cyclohexane from the unreacted benzene is industrially significant. However, it is tough to separate cyclohexane from benzene by conventional distillation processes since these components have close boiling points and form an azeotrope mixture. Currently, extractive distillation is commercially used for the separation of cyclohexane from benzene using conventional solvents (entrainers) such as sulfolane, dimethyl sulfoxide, N-formylmorpholine, an

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42

Kulakova, Alena, Victor Khrustalev, Yan Zubavichus, et al. "Palanquin-Like Cu4Na4 Silsesquioxane Synthesis (via Oxidation of 1,1-bis(Diphenylphosphino)methane), Structure and Catalytic Activity in Alkane or Alcohol Oxidation with Peroxides." Catalysts 9, no. 2 (2019): 154. http://dx.doi.org/10.3390/catal9020154.

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The self-assembly synthesis of copper-sodium phenylsilsesquioxane in the presence of 1,1-bis(diphenylphosphino)methane (dppm) results in an unprecedented cage-like product: [(PhSiO1,5)6]2[CuO]4[NaO0.5]4[dppmO2]2 1. The most intriguing feature of the complex 1 is the presence of two oxidized dppm species that act as additional O-ligands for sodium ions. Two cyclic phenylsiloxanolate (PhSiO1,5)6 ligands coordinate in a sandwich manner with the copper(II)-containing layer of the cage. The structure of 1 was established by X-ray diffraction analysis. Complex 1 was shown to be a very good catalyst

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43

Suh, Young-Ger, Soon-Ai Kim, and Youn-Sang Cho. "Synthesis of cis-disubstituted cyclohexane synthesis of cis-1-ethenyl-2-hydroxymethyl-cyclohexane." Archives of Pharmacal Research 13, no. 2 (1990): 201–3. http://dx.doi.org/10.1007/bf02857801.

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44

Tranter, Robert S., Colin Banyon, Ryan E. Hawtof, and Keunsoo Kim. "Pyrolysis of Cyclohexane and 1-Hexene at High Temperatures and Pressures—A Photoionization Mass Spectrometry Study." Energies 16, no. 24 (2023): 7929. http://dx.doi.org/10.3390/en16247929.

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Cycloalkanes are important components of a wide range of fuels. However, there are few experimental data at simultaneously high temperatures and pressures similar to those found in practical systems. Such data are necessary for developing and testing chemical kinetic models. In this study, data relevant to cycloalkane pyrolysis were obtained from high repetition rate shock tube experiments coupled with synchrotron-based photoionization mass spectrometry diagnostics. The pyrolysis of cyclohexane was studied over 1270–1550 K and ~9 bar, while the more reactive primary decomposition product, 1-he

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45

Stephenson, W. Kirk, and Richard Fuchs. "Enthalpies of interaction of ketones with organic solvents." Canadian Journal of Chemistry 63, no. 2 (1985): 336–41. http://dx.doi.org/10.1139/v85-057.

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Enthalpies of solution (ΔHS) of a series of ketones (acetone, 2-butanone, 2-heptanone, 2-nonanone, 5-nonanone, 2,2,4,4-tetramethyl-3-pentanone, cyclohexanone) and alkane model compounds (n-heptane, n-nonane, 2,2,4,4-tetramethylpentane, cyclohexane) have been determined in 17 organic solvents (n-heptane, cyclohexane, CCl4, α,α,α,-trifluorotoluene, 1,2-dichloroethane, triethylamine, butyl ether, ethyl acetate, DMF, DMSO, benzene, toluene, mesitylene, 1-octanol, methanol, t-butyl alcohol, 2,2,2-trifluoroethanol), and combined with heats of vaporization to give enthalpies of transfer from vapor to

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46

Moskvina, Viktoria, Olexander Turov, Tetyana Shokol, and Volodymyr Khilya. "Synthesis and NMR spectroscopy investigations of functionalized spiropyranochromenediones and their spirothiadiazole derivatives." Ukrainica Bioorganica Acta 16, no. 2 (2021): 18–22. http://dx.doi.org/10.15407/bioorganica2021.02.018.

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This investigation focuses on the synthesis of spiropyranoneoflavones and the modification of obtained compounds at the exocyclic oxygen atom. Kabbe cyclization of 6-acetyl-7‑hydroxy-8-methyl-4-phenyl-2H-chromene-2-one with cyclohexanone or cyclopentanone in the presence of pyrrolidine provided 10-methyl-4-phenyl-2H-spiro[cyclohexane(cyclopentane)-1’,8-pyrano[3,2-g]chromene]-2,6(7H)-diones. Their new functionalized derivatives with thiosemicarbazide residues were synthesized. Acetylation of obtained thiosemicarbazones with acetic anhydride proceeded via cyclization of thiosemicarbazide fragmen

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47

Cruz-Enríquez, Adriana, Hector J. Peinado-Guevara, Viviana Reyes-Marquez, Herbert Höpfl, and José J. Campos-Gaxiola. "Cyclohexane-1,4-dicarboxylic acid–pyridinium-4-olate (1/1)." Acta Crystallographica Section E Structure Reports Online 69, no. 4 (2013): o591. http://dx.doi.org/10.1107/s160053681300754x.

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48

Smith, Graham, and Urs D. Wermuth. "rac-cis-Cyclohexane-1,2-dicarboxylic acid–isoquinoline (1/1)." Acta Crystallographica Section E Structure Reports Online 67, no. 9 (2011): o2261. http://dx.doi.org/10.1107/s1600536811030613.

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49

Jurado, Sergio, Beatriz Domínguez-Pérez, Ona Illa, Jan Balzarini, Félix Busqué та Ramon Alibés. "Enantiocontrolled Preparation of ϒ-Substituted Cyclohexenones: Synthesis and Kinase Activity Assays of Cyclopropyl-Fused Cyclohexane Nucleosides". International Journal of Molecular Sciences 23, № 17 (2022): 9704. http://dx.doi.org/10.3390/ijms23179704.

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The enantioselective preparation of the two isomers of 4-hydroxy-2-cyclohexanone derivatives 1a,b was achieved, starting from a common cyclohexenone, through asymmetric transfer hydrogenation (ATH) reactions using bifunctional ruthenium catalysts. From these versatile intermediates, a stereoselective route to a cytosine analogue built on a bicyclo [4.1.0]heptane scaffold is described. Nucleoside kinase activity assays with this cyclopropyl-fused cyclohexane nucleoside, together with other related nucleosides (2a–e), were performed, showing that thymine- and guanine- containing compounds have a

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50

Hakimi, Mohammad, Zahra Mardani, Keyvan Moeini, Esther Schuh, and Fabian Mohr. "A Spectral and Structural Study of the New Cadmium Salt [(H2L)2][Cd2I6][(NO3)2]." Zeitschrift für Naturforschung B 68, no. 3 (2013): 272–76. http://dx.doi.org/10.5560/znb.2013-2295.

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The reaction between 2-(piperazin-1-yl)ethanol and cyclohexene oxide under microwave irradiation gave 2-(4-(2-hydroxyethyl)piperazin-1-yl)cyclohexanol (L). The new cadmium salt [(H2L)2][Cd2I6][(NO3)2] (1) was prepared from the reaction of cadmium iodide with L and identified by elemental analysis, FT-IR and Raman spectroscopy, and single-crystal X-ray diffraction. In the crystal structure of 1, there is a [Cd2I6]2- dianion with distorted tetrahedral geometry for each cadmium atom. The piperazine and cyclohexane rings in 1 have a chair conformation. In the crystal there are several intermolecul

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