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Journal articles on the topic 'Organic cyclic compounds'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2024

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1

Fujii, Toshihiro, and Hitoshi Jimba. "Surface ionization mass spectrometry of organic compounds. II. Nitrogen-containing cyclic organic compounds." International Journal of Mass Spectrometry and Ion Processes 79, no. 3 (November 1987): 221–30. http://dx.doi.org/10.1016/0168-1176(87)83001-x.

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2

Tatrishvili, Tamara, and Omar Mukbaniani. "Cyclic Silicon Organic Copolymers: Synthesis and Investigation. Review." Chemistry & Chemical Technology 18, no. 2 (June 14, 2024): 131–42. http://dx.doi.org/10.23939/chcht18.02.131.

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This paper considers the synthesis and investigation of cyclic silicon-organic polymers with mono- and polycyclic fragments in the side chain. For obtaining monocyclic polymers, the hydrosilylation reaction of 1-hydro-3-vinylhexamethylcyclotetrasiloxane was used. The reaction was conducted in a CCl4 solution at 75°C in the presence of Speier’s catalyst (H2PtCl6  6H2O) to produce a viscous-flow at room temperature polymer. The polymers were studied by NMR spectroscopy. Poly(carbosiloxane) with cyclic fragments in the methyl-siloxane backbone was synthesized by the hydride polyaddition of divinylorganocyclosiloxane with dihydrodimethylsiloxane. A semi-quantitative assessment conducted using NMR spectroscopy revealed the ratio of isomeric 1,3- and 1,5-cyclic structures as 1:1. X-ray diffraction studies indicated that copolymers are single-phase amorphous systems. Also, in the review, synthesis and studies of carbosiloxane copolymers containing flexible dimethylsiloxane and decaorganotricyclodecasiloxane fragments in the backbone are discussed. Hydride polyaddition of divinyl-containing compounds was carried out for -dihydridedimethylsiloxanes of various lengths. The synthesized copolymers were characterized by the X-ray diffraction method and TGA.

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3

Wang, Mei, Wei Wang, Dashan Li, Wen-Jing Wang, Rui Zhan, and Li-Dong Shao. "α-C(sp3)-H Arylation of Cyclic Carbonyl Compounds." Natural Products and Bioprospecting 11, no. 4 (June 7, 2021): 379–404. http://dx.doi.org/10.1007/s13659-021-00312-1.

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Abstractα-C(sp3)-H arylation is an important type of C-H functionalization. Various biologically significant natural products, chemical intermediates, and drugs have been effectively prepared via C-H functionalization. Cyclic carbonyl compounds comprise of cyclic ketones, enones, lactones, and lactams. The α-C(sp3)-H arylation of these compounds have been exhibited high efficiency in forming C(sp3)-C(sp2) bonds, played a crucial role in organic synthesis, and attracted majority of interests from organic and medicinal communities. This review focused on the most significant advances including methods, mechanism, and applications in total synthesis of natural products in the field of α-C(sp3)-H arylations of cyclic carbonyl compounds in recent years.

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4

Ding, Wen-bing, Rui-yuan Zhao, Guan-hua Li, Bing-lei Liu, Hua-liang He, Lin Qiu, Jin Xue, and You-zhi Li. "New Cyclic Diarylheptanoids from Platycarya strobilacea." Molecules 25, no. 24 (December 20, 2020): 6034. http://dx.doi.org/10.3390/molecules25246034.

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Five new cyclic diarylheptanoids (platycary A–E, compounds 1–5) and three previously identified analogues (i.e., phttyearynol (compound 6), myricatomentogenin (compound 7), and juglanin D (compound 8)) were isolated from the stem bark of Platycarya strobilacea. The structures of these compounds were determined using NMR, HRESIMS, and electronic circular dichroism (ECD) data. The cytotoxicity of compounds 1–5 and their ability to inhibit nitric oxide (NO) production, as well as protect against the corticosterone-induced apoptosis of Pheochromocytoma (PC12) cells, were evaluated in vitro using the appropriate bioassays. Compounds 1 and 2 significantly inhibited the corticosterone-induced apoptosis of PC12 cells at a concentration of 20 μΜ.

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5

van Esch, Jan H., Franck Schoonbeek, Maaike de Loos, Huub Kooijman, Anthony L. Spek, Richard M. Kellogg, and Ben L. Feringa. "Cyclic Bis-Urea Compounds as Gelators for Organic Solvents." Chemistry - A European Journal 5, no. 3 (March 1, 1999): 937–50. http://dx.doi.org/10.1002/(sici)1521-3765(19990301)5:3<937::aid-chem937>3.0.co;2-0.

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6

Negishi, Ei-ichi, Christophe Copéret, Shengming Ma, Show-Yee Liou, and Fang Liu. "Cyclic Carbopalladation. A Versatile Synthetic Methodology for the Construction of Cyclic Organic Compounds." Chemical Reviews 96, no. 1 (January 1996): 365–94. http://dx.doi.org/10.1021/cr950020x.

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7

Xu, Bo, Xiaotian Shi, Xiang Liu, and Hua Cao. "Construction of Chiral Cyclic Compounds Enabled by Enantioselective Photocatalysis." Molecules 27, no. 2 (January 7, 2022): 359. http://dx.doi.org/10.3390/molecules27020359.

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Chiral cyclic molecules are some of the most important compounds in nature, and are widely used in the fields of drugs, materials, synthesis, etc. Enantioselective photocatalysis has become a powerful tool for organic synthesis of chiral cyclic molecules. Herein, this review summarized the research progress in the synthesis of chiral cyclic compounds by photocatalytic cycloaddition reaction in the past 5 years, and expounded the reaction conditions, characters, and corresponding proposed mechanism, hoping to guide and promote the development of this field.

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8

Keshavarz, Mohammad Hossein, and Yasin Hayat Abadi. "Novel Organic Compounds Containing Nitramine Groups Suitable as High-Energy Cyclic Nitramine Compounds." ChemistrySelect 3, no. 28 (July 27, 2018): 8238–44. http://dx.doi.org/10.1002/slct.201800887.

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9

Terent'ev, Alexander O., Dmitry A. Borisov, Vera A. Vil’, and Valery M. Dembitsky. "Synthesis of five- and six-membered cyclic organic peroxides: Key transformations into peroxide ring-retaining products." Beilstein Journal of Organic Chemistry 10 (January 8, 2014): 34–114. http://dx.doi.org/10.3762/bjoc.10.6.

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The present review describes the current status of synthetic five and six-membered cyclic peroxides such as 1,2-dioxolanes, 1,2,4-trioxolanes (ozonides), 1,2-dioxanes, 1,2-dioxenes, 1,2,4-trioxanes, and 1,2,4,5-tetraoxanes. The literature from 2000 onwards is surveyed to provide an update on synthesis of cyclic peroxides. The indicated period of time is, on the whole, characterized by the development of new efficient and scale-up methods for the preparation of these cyclic compounds. It was shown that cyclic peroxides remain unchanged throughout the course of a wide range of fundamental organic reactions. Due to these properties, the molecular structures can be greatly modified to give peroxide ring-retaining products. The chemistry of cyclic peroxides has attracted considerable attention, because these compounds are used in medicine for the design of antimalarial, antihelminthic, and antitumor agents.

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10

Prigyai, Nicha, Supphachok Chanmungkalakul, Sutthiroj Thanyalax, Mongkol Sukwattanasinitt, and Vuthichai Ervithayasuporn. "Cyclic siloxanes conjugated with fluorescent aromatic compounds as fluoride sensors." Materials Advances 1, no. 9 (2020): 3358–68. http://dx.doi.org/10.1039/d0ma00476f.

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11

Liu, Chunyu, Guochun Yang, Yanling Si, Youjun Liu, and Xiumei Pan. "Understanding photophysical properties of chiral conjugated corrals for organic photovoltaics." Journal of Materials Chemistry C 5, no. 14 (2017): 3495–502. http://dx.doi.org/10.1039/c7tc00337d.

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12

Hansmann, Max M., Mohand Melaimi, and Guy Bertrand. "Organic Mixed Valence Compounds Derived from Cyclic (Alkyl)(amino)carbenes." Journal of the American Chemical Society 140, no. 6 (February 2018): 2206–13. http://dx.doi.org/10.1021/jacs.7b11184.

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13

Ali Ahmed, Hussein. "Biochemical study of new cyclic organic compounds from aldol reaction." Biochemical and Cellular Archives 23, no. 1 (April 10, 2023): 57–64. http://dx.doi.org/10.51470/bca.2023.23.1.57.

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14

Morikawa, Hiroshi, Jun-ichi Yamaguchi, Shun-ichi Sugimura, Masato Minamoto, Yuuta Gorou, Hisatoyo Morinaga, and Suguru Motokucho. "Systematic synthetic study of four diastereomerically distinct limonene-1,2-diols and their corresponding cyclic carbonates." Beilstein Journal of Organic Chemistry 15 (January 14, 2019): 130–36. http://dx.doi.org/10.3762/bjoc.15.13.

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In order to produce versatile and potentially functional terpene-based compounds, a (R)-limonene-derived diol and its corresponding five-membered cyclic carbonate were prepared. The diol (cyclic carbonate) comprises four diastereomers based on the stereochemical configuration of the diol (and cyclic carbonate) moiety. By choosing the appropriate starting compounds (trans- and cis-limonene oxide) and conditions, the desired diastereomers were synthesised in moderate to high yields with, in most cases, high stereoselectivity. Comparison of the NMR data of the obtained diols and carbonates revealed that the four different diastereomers of each compound could be distinguished by reference to their characteristic signals.

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15

Macaev, F. "Selective Organic Synthesis for Sustainable Development." Chemistry Journal of Moldova 7, no. 2 (December 2012): 67–77. http://dx.doi.org/10.19261/cjm.2012.07(2).12.

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The data on the development of selective organic synthesis suitable for obtaining multifunctional organic compounds both linear and cyclic structures using environmentally benign, inexpensive and renewable resources summarized. This article is an extended abstract of a communication presented at the Conference Ecological Chemistry 2012.

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16

Nishikawa, Toshio. "Synthetic Studies on Structurally Novel Bioactive Compounds-Synthetic Studies on Cyclic Enediyne Compounds-." Journal of Synthetic Organic Chemistry, Japan 62, no. 3 (2004): 226–37. http://dx.doi.org/10.5059/yukigoseikyokaishi.62.226.

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17

Sartyoungkul, Sitanan, Isaya Thaveesangsakulthai, Mark Kristan Espejo Cabello, Chadin Kulsing, and Hidehiro Sakurai. "Application of cup-shaped trilactams for selective extraction of volatile compounds by gas chromatography-mass spectrometry." Analyst 145, no. 20 (2020): 6668–76. http://dx.doi.org/10.1039/d0an01061h.

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Chiral cup-shaped trilactams were used as liquid phase extraction material of volatile organic compounds in perfume analyzed by SPME GC-MS. (+)-material showed higher selective chiral recognition with oxygenated and cyclic volatile compounds.

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18

Wei, Ying, Yongxia Yan, Xiaoyan Li, Linghai Xie, and Wei Huang. "Covalent nanosynthesis of fluorene-based macrocycles and organic nanogrids." Organic & Biomolecular Chemistry 20, no. 1 (2022): 73–97. http://dx.doi.org/10.1039/d1ob01558c.

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This paper presents an overview of synthetic approaches for fluorene-based cyclic compounds by examining four different connection models of fluorenes, involving 2,7-, 3,6-, 9,9-, and 2,9-linked patterns.

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19

Chandrasekhar, V., A. Chandrasekaran, Roberta O. Day, Joan M. Holmes, and Robert R. Holmes. "NOVEL CYCLIC PENTACOORDINATE AND PSEUDOPENTACOORDINATE LEAD COMPOUNDS." Phosphorus, Sulfur, and Silicon and the Related Elements 115, no. 1 (August 1, 1996): 125–39. http://dx.doi.org/10.1080/10426509608037960.

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20

Lemmen, P., W. Richter, B. Werner, R. Karl, R. Stumpf, and I. Ugi. "Five-Membered Cyclic Phosphorylating Reagents and Related Compounds." Synthesis 1993, no. 01 (1993): 1–10. http://dx.doi.org/10.1055/s-1993-25778.

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21

He, Yan, Zhi Zheng, Jintao Yang, Xinying Zhang, and Xuesen Fan. "Recent advances in the functionalization of saturated cyclic amines." Organic Chemistry Frontiers 8, no. 16 (2021): 4582–606. http://dx.doi.org/10.1039/d1qo00171j.

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Functionalized cyclic amines are the essential structural moieties of numerous biologically active compounds. This review summarized the most recent advances in the C–H, C–N and C–C bond functionalization of saturated cyclic amines.

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22

Zhu, Tingshun, Ke Xu, and Ziyuan Wang. "N-Heterocyclic Carbene-Organocatalyzed Arene Formation: Application in Atroposelective Synthesis of Polysubstituted Benzenes." Synlett 31, no. 10 (February 3, 2020): 925–32. http://dx.doi.org/10.1055/s-0039-1690814.

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In recent decades, organocatalysis by N-heterocyclic carbenes (NHCs) has emerged as a versatile and powerful method in organic synthesis. As a result of the power of NHC organocatalysis to produce cyclic compounds, polysubstituted benzenes, which are among the most important cyclic compounds in organic chemistry, can be synthesized efficiently and selectively. This article briefly summarizes the history of NHC organocatalysis, including recent developments in benzene-formation methods, and highlights our recent work in atroposelective arene formation by carbene-catalyzed formal [4+2] cycloadditions. We expect that more NHC-catalyzed methods for the synthesis of asymmetric arenes will be developed in the near future, providing shortcuts to syntheses of sophisticated chiral functional molecules with polysubstituted benzene nuclei.

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23

Koshelev, Vladimir N., Olga V. Primerova, Stepan V. Vorobyev, and Ludmila V. Ivanova. "Synthesis, Redox Properties and Antibacterial Activity of Hindered Phenols Linked to Heterocycles." Molecules 25, no. 10 (May 20, 2020): 2370. http://dx.doi.org/10.3390/molecules25102370.

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A series of benzotriazole, cyclic amides and pyrimidine derivatives, containing 2,6-di-tert-butyl-phenol fragments, were synthesized. The redox properties of obtained compounds were studied using the cyclic voltammetry on a platinum electrode in acetonitrile. The oxidation potentials of all substances were comparable to those of BHT. The obtained compounds were tested for their antibacterial activity, and N-(2-(3,5-di-tert-butyl-4-hydroxyphenyl)-2-oxoethyl)isatin (32 μg/mL) exerted good activity against Staphylococcus aureus.

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24

NEGISHI, E., C. COPERET, S. MA, S. Y. LIOU, and F. LIU. "ChemInform Abstract: Cyclic Carbopalladation. A Versatile Synthetic Methodology for the Construction of Cyclic Organic Compounds." ChemInform 27, no. 22 (August 5, 2010): no. http://dx.doi.org/10.1002/chin.199622292.

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25

Tanaka, Koichi, Naoki Daikawa, and Shigeru Ohba. "Novel Bisurea Host Compounds." Journal of Chemical Research 2002, no. 11 (November 2002): 579–81. http://dx.doi.org/10.3184/030823402103170853.

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New host molecules, 4,4′-bis(dimethylamino-urea)diphenylmethane (1) and its derivatives (2 and 3), are reported. These hosts are shown to give inclusion complex crystals with a wide variety of organic guest molecules with high selectivity. The crystal structure of 1:2 inclusion complex of 1 with THF has been determined from X-ray crystal structure analysis. The cyclic N–H...O intermolecular hydrogen bonds between host molecules were found to form columns for accommodation of the guest molecules.

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26

Lee, Sangwon, Jiseon Kim, and Kangwoo Cho. "Surveying Metal Catalysts for Electrochemical Direct Oxidation of Small Organic Compounds." Ceramist 26, no. 3 (September 30, 2023): 359–67. http://dx.doi.org/10.31613/ceramist.2023.26.3.01.

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Electrochemical degradation of organic molecules is important in wastewater treatment. In addition, the direct oxidation of small organics can be utilized for electrochemical hydrogen production or fuel cell. This study aimed to provide database for various anode catalysts that can degrade organic molecules such as urea, methanol, ethanol, glucose, ammonia, formic acid, acetic acid, oxalic acid in various pH conditions. Pt, Ni, Cu anodes were employed, and the target molecule concentration was 0.3 M. The activity was analyzed by the peak current densities of cyclic voltammetry. The Cu showed activity in the reaction of decomposing glucose and ammonia at pH 14. The Ni was active in ammonia degradation at pH 7, and the Pt was active in oxalic acid oxidation at pH 0. Relevant mechanisms were proposed for these reactions. We suggest Cu-Ni composites for toilet wastewater treatment and Pt for handling anaerobic digestor effluent.

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27

Perry, David, Bracken Roberts, Ginamarie Debevec, Heather Michaels, Debopam Chakrabarti, and Adel Nefzi. "Identification of Bis-Cyclic Guanidines as Antiplasmodial Compounds from Positional Scanning Mixture-Based Libraries." Molecules 24, no. 6 (March 20, 2019): 1100. http://dx.doi.org/10.3390/molecules24061100.

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The screening of more than 30 million compounds derived from 81 small molecule libraries built on 81 distinct scaffolds identified pyrrolidine bis-cyclic guanidine library (TPI-1955) to be one of the most active and selective antiplasmodial libraries. The screening of the positional scanning library TPI-1955 arranged on four sets of sublibraries (26 + 26 + 26 + 40), totaling 120 samples for testing provided information about the most important groups of each variable position in the TPI-1955 library containing 738,192 unique compounds. The parallel synthesis of the individual compounds derived from the deconvolution of the positional scanning library led to the identification of active selective antiplasmodial pyrrolidine bis-cyclic guanidines.

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28

Kim, Jae, and Ka Lee. "Synthesis of Cyclic Compounds from the Baylis-Hillman Adducts." Current Organic Chemistry 6, no. 7 (June 1, 2002): 627–45. http://dx.doi.org/10.2174/1385272023374094.

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29

Wakahara, Takatsugu, Masahiro Kako, Yutaka Maeda, Takeshi Akasaka, Kaoru Kobayashi, and Shigeru Nagase. "Synthesis and Characterization of Cyclic Silicon Compounds of Fullerenes." Current Organic Chemistry 7, no. 10 (July 1, 2003): 927–43. http://dx.doi.org/10.2174/1385272033486611.

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30

Tkacik, Daniel S., Albert A. Presto, Neil M. Donahue, and Allen L. Robinson. "Secondary Organic Aerosol Formation from Intermediate-Volatility Organic Compounds: Cyclic, Linear, and Branched Alkanes." Environmental Science & Technology 46, no. 16 (August 9, 2012): 8773–81. http://dx.doi.org/10.1021/es301112c.

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31

Rollin, Patrick, Liane K. Soares, Angelita M. Barcellos, Daniela R. Araujo, Eder J. Lenardão, Raquel G. Jacob, and Gelson Perin. "Five-Membered Cyclic Carbonates: Versatility for Applications in Organic Synthesis, Pharmaceutical, and Materials Sciences." Applied Sciences 11, no. 11 (May 29, 2021): 5024. http://dx.doi.org/10.3390/app11115024.

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This review presents the recent advances involving several applications of five-membered cyclic carbonates and derivatives. With more than 150 references, it covers the period from 2012 to 2020, with special emphasis on the use of five-membered cyclic carbonates as building blocks for organic synthesis and material elaboration. We demonstrate the application of cyclic carbonates in several important chemical transformations, such as decarboxylation, hydrogenation, and transesterification reactions, among others. The presence of cyclic carbonates in molecules with high biological potential is also displayed, together with the importance of these compounds in the preparation of materials such as urethanes, polyurethanes, and flame retardants.

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32

Tobal, Ignacio E., Rocío Bautista, David Diez, Narciso M. Garrido, and Pilar García-García. "1,3-Cyclohexadien-1-Als: Synthesis, Reactivity and Bioactivities." Molecules 26, no. 6 (March 22, 2021): 1772. http://dx.doi.org/10.3390/molecules26061772.

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In synthetic organic chemistry, there are very useful basic compounds known as building blocks. One of the main reactions wherein they are applied for the synthesis of complex molecules is the Diels–Alder cycloaddition. This reaction is between a diene and a dienophile. Among the most important dienes are the cyclic dienes, as they facilitate the reaction. This review considers the synthesis and reactivity of one of these dienes with special characteristics—it is cyclic and has an electron withdrawing group. This building block has been used for the synthesis of biologically active compounds and is present in natural compounds with interesting properties.

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33

Chunkang, Cyprian M., Iris E. Ikome, Emmanuel N. Nfor, Yuta Mitani, Natsuki Katsuumi, Tomoyuki Haraguchi, and Takashiro Akitsu. "Success or Failure of Chiral Crystallization of Similar Heterocyclic Compounds." Molecules 25, no. 23 (December 2, 2020): 5691. http://dx.doi.org/10.3390/molecules25235691.

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Single crystals of two achiral and planar heterocyclic compounds, C9H8H3O(CA1) and C8H5NO2 (CA4), recrystallized from ethanol, were characterized by single crystal X-ray analysis, respectively, and chiral crystallization was observed only for CA1 as P212121 (# 19), whereas it was not observed for CA4 P21/c (# 14). In CA1, as a monohydrate, the hydrogen bonds were pronounced around the water of crystallization (O4), and the planar cyclic sites were arranged in parallel to slightly tilted positions. On the other hand, an anhydride CA4 formed a dimer by hydrogen bonds between adjacent molecules in the crystal, which were aggregated by van der Waals forces and placed in parallel planar cyclic sites.

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34

Denisov, Evgenii T. "Cyclic mechanisms of chain termination in the oxidation of organic compounds." Russian Chemical Reviews 65, no. 6 (June 30, 1996): 505–20. http://dx.doi.org/10.1070/rc1996v065n06abeh000302.

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35

Contreras, M. L., R. Rozas, and R. Valdivia. "Exhaustive Generation of Organic Isomers. 3. Acyclic, Cyclic, and Mixed Compounds." Journal of Chemical Information and Modeling 34, no. 3 (May 1, 1994): 610–16. http://dx.doi.org/10.1021/ci00019a020.

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36

Shimizu, Toshio, and Nobumasa Kamigata. "Unsaturated cyclic compounds possessing disulfide linkage." Journal of Organometallic Chemistry 611, no. 1-2 (October 2000): 106–15. http://dx.doi.org/10.1016/s0022-328x(00)00324-7.

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37

Kayser, Margaret M., Jun Zhu, and Donald L. Hooper. "On the synthesis and the mechanism of formation of halogenated enol lactones." Canadian Journal of Chemistry 75, no. 10 (October 1, 1997): 1322–30. http://dx.doi.org/10.1139/v97-158.

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The synthesis of halo enol lactones from cyclic anhydrides via lactonization of the corresponding keto phosphoranes provides a direct route to these interesting compounds, which possess important biological properties and are useful intermediates in organic synthesis. In this paper we outline the syntheses of several halo enol lactones and discuss mechanistic consequences of these reactions on the understanding of Wittig reactions with cyclic anhydrides. Keywords: halolactonization, cyclic anhydrides, halo enol lactones, Wittig reaction mechanism.

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38

Lv, Wenbo, Cunbao Deng, Zhixin Jin, Hao Zhang, and Yansheng Wang. "Molecular Simulation of the Effects of Cyclic Organic Compounds on the Stability of Lccbm Hydrates." Molecules 27, no. 20 (October 20, 2022): 7077. http://dx.doi.org/10.3390/molecules27207077.

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CH4 can be separated from low-concentration coal bed methane (LCCBM) by using the hydrate-based gas separation (HBGS) method. To study the contribution of different cyclic organic compounds to the separation of CH4 in LCCBM, an LCCBM hydrate model was constructed. Based on the Monte Carlo and molecular dynamics theory, we simulated the effect of three cyclic organic compounds—cyclopentane (CP), cyclopentanone (CP-one), and cyclopentanol (CP-ol)—on the stability of the LCCBM hydrate at P = 2 MPa, various temperatures, and discussed the structural stability of the hydrate in depth in terms of final snapshots, radial distribution function, mean square displacement, diffusion coefficient, and potential energy change. The results showed that for the CH4-N2 LCCMM gas mixture, CP showed the best facilitation effect compared to the other two cyclic compounds by maintaining the stability of the LCCBM hydrate well at T = 293 K. The promotion effect of CP-one is between CP and CP-ol, and when the temperature increases to T = 293 K, the oxygen atoms in the water molecule can maintain the essential stability of the hydrate structure, although the orderliness decreases significantly. Moreover, the structure of the hydrate model containing CP-ol is destroyed at T = 293 K, and the eventual escape of CH4 and N2 molecules in solution occurs as bubbles. The research results are important for further exploration of the mechanism of action of cyclic promoter molecules with LCCBM hydrate molecules and promoter preferences.

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39

Lv, Hai Jun, Yi Feng Yu, Xiao Jia Wang, Zhi Chao Hu, Jing Zhang, Ai Bing Chen, Lei Liu, et al. "Synthesis and Properties of Novel Light-Emitting Materials Containing Triphenylamine, Olefinic Linkers and Bipyridine Units." Advanced Materials Research 1033-1034 (October 2014): 1167–71. http://dx.doi.org/10.4028/www.scientific.net/amr.1033-1034.1167.

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Organic light-emitting materials D1~D3 containing triphenylamine donors, bipyridine acceptors and olefinic linkers were synthesized and characterized. The optical, electrochemical properties of materials were studied by UV-Vis spectra, fluorescence emission spectra and cyclic voltammetry method. The results show that the maximal absorption peaks of three compounds are in the range of 404nm~408nm and fluorescence emission peaks at the region of 534nm~557nm in dichloromethane solutions, respectively. Cyclic voltammetry measurement showed that these compounds had HOMO energy level in the range of-5.02eV~-5.16eV, which is proper for hole injection. The properties indicate that these compounds have potential for the application as light-emitting materials or hole-transporting materials.

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40

Ando, Wataru, Nami Choi, Sakura Watanabe, Kumiko Asano, Tetsuji Kadowaki, Yoshio Kabe, and Hitoaki Yoshida. "Cyclic Polychalcogenide Compounds with Silicon and Germanium Atoms." Phosphorus, Sulfur, and Silicon and the Related Elements 93, no. 1-4 (August 1994): 51–60. http://dx.doi.org/10.1080/10426509408021798.

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41

Venneri, Paul C., and John Warkentin. "Reaction of dimethoxycarbene with strained cyclic carbonyl compounds." Canadian Journal of Chemistry 78, no. 9 (September 1, 2000): 1194–203. http://dx.doi.org/10.1139/v00-118.

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A cyclopropanone, a cyclopropenone, cyclobutanones, a cyclobutane-1,3-dione, and a cyclobutene-1,2-dione reacted with dimethoxycarbene to afford acetals of the next larger ring by formal insertion of the carbene into a CC bond α to the carbonyl group. When either of two saturated α-ring carbons could be involved in the process, the ring expansion was selective, affording primarily the product of apparent insertion into the more substituted ring bond. With 2,3-dimethoxycyclobutene-1,2-dione, insertion occurred between the carbonyl groups and with β-propiolactone it occurred at the lactone bond. β-Propiolactam, however, reacted by insertion of the carbene into the NH bond.Key words: β-propiolactone, cyclobutanone, cyclobutananedione, cyclopropanone, dialkoxycarbene.

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42

BRUNERIE, Pascal, Jean-Pierre CÉLÉRIER, Michel HUCHÉ, and Gérard LHOMMET. "Azabicyclic Compounds Synthesis: Reactions of Cyclic β-Enaminoesters with α,β-Unsaturated Carbonyl Compounds." Synthesis 1985, no. 08 (1985): 735–38. http://dx.doi.org/10.1055/s-1985-31328.

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43

Krasavin, Mikhail, Maria Eremeyeva, Daniil Zhukovsky, and Dmitry Dar’in. "The Use of α-Diazo-γ-butyrolactams in the Büchner–Curtius–Schlotterbeck Reaction of Cyclic Ketones Opens New Entry to Spirocyclic Pyrrolidones." Synlett 31, no. 10 (March 23, 2020): 982–86. http://dx.doi.org/10.1055/s-0040-1708011.

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The only cyclic α-diazocarbonyl compound employed in the Büchner–Curtius–Schlotterbeck ring expansion of cyclic ketones to date was α-diazo-γ-butyrolactone. Encouraged by the recent success using α-diazo acetamides in related Tiffeneau–Demjanov type ring expansions, we extended this approach to various α-diazo-γ-butyrolactams, which produced, under BF3·OEt2-promoted conditions, spirocyclic seven-membered ketones. These findings substantially enhance the possibilities offered by cyclic α-diazocarbonyl compounds in constructing privileged spirocyclic scaffolds for drug design.

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44

Ding, Ran, Yu-Hang Deng, Shan Luo, Xue-Feng Tang, Lei Liu, and Pei-Long Wang. "Metal-free regioselective cascade sulfonylation–cyclization of 3-aza-1,5-enynes with sulfur dioxide and aryldiazonium tetrafluoroborates to construct 1,2-dihydropyridines." Organic Chemistry Frontiers 9, no. 8 (2022): 2228–33. http://dx.doi.org/10.1039/d2qo00175f.

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45

Smoliakova, Irina. "Synthesis of C-Glycosylic Compounds Using Three-Membered Cyclic Intermediates." Current Organic Chemistry 4, no. 6 (June 1, 2000): 589–608. http://dx.doi.org/10.2174/1385272003376148.

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46

Maeda, Shugo, Katsuya Maeyama, and Noriyuki Yonezawa. "Synthesis of Rigid and Optically Active Bis(binaphthyl) Cyclic Compounds." Synthetic Communications 37, no. 16 (August 2007): 2663–70. http://dx.doi.org/10.1080/00397910701465198.

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47

Ou, Guangchuan, Qiong Wang, Qiang Zhou, and Xiaofeng Wang. "Phenol Derivatives as Co-Crystallized Templates to Modulate Trimesic-Acid-Based Hydrogen-Bonded Organic Molecular Frameworks." Crystals 11, no. 4 (April 12, 2021): 409. http://dx.doi.org/10.3390/cryst11040409.

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Five host−guest trimesic-acid-based hydrogen-bonds framework compounds with different guests, namely [(TMA)4·(TMB)3] (1), [(TMA)2·(DMB)1.5] (2), [(TMA)6·(MP)] (3), [(TMA)·(EP)] (4) and [(TMA)·(PP)] (5) (TMA = trimesic acid, TMB = 1,3,5-trimethoxybenzene, DMB = 1,4-dimethoxybenzene, MP = 4-methoxyphenol, EP = 4-ethoxyphenol and PP = 4-propoxyphenol), were obtained through co-crystallization, and were characterized by elemental analysis, infrared spectroscopy analysis, and thermogravimetric analysis. The trimesic acid molecules comprise a hydrogen bonding six-membered cyclic host network that is found in a two-dimensional arrangement in compounds 1 and 2, and in a nine-fold interpenetrated three-dimensional structure in compound 3. In compounds 4 and 5, the trimesic acid and EP/PP molecules form a hydrogen-bonded six-membered cyclic network, resulting in a one-dimensional chain structure through O−H…O hydrogen bonds.

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Guo, Wusheng, and Biwei Yan. "Recent Advances in Decarboxylative Conversions of Cyclic Carbonates and Beyond." Synthesis 54, no. 08 (December 7, 2021): 1964–76. http://dx.doi.org/10.1055/a-1715-7413.

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AbstractIn recent years, functionalized cyclic organic carbonates have emerged as valuable building blocks for the construction of interesting and useful molecules upon decarboxylation under transition-metal catalysis. By employing suitable catalytic systems, the development of chemo-, regio-, stereo- and enantioselective methods for the synthesis of useful and interesting compounds has advanced greatly. On the basis of previous research on this topic, this short review highlights the synthetic potential of cyclic carbonates under transition-metal catalysis over the last two years.1 Introduction2 Transition-Metal-Catalyzed Decarboxylation of Vinyl Cyclic Carbonates3 Zwitterionic Enolate Chemistry Based On Transition-Metal Catalysis4 Decarboxylation of Alkynyl Cyclic Carbonates and Dioxazolones5 Conclusions and Perspectives

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Lee, Seoung Rak, Dahae Lee, Jae Sik Yu, René Benndorf, Sullim Lee, Dong-Soo Lee, Jungmoo Huh, et al. "Natalenamides A–C, Cyclic Tripeptides from the Termite-Associated Actinomadura sp. RB99." Molecules 23, no. 11 (November 16, 2018): 3003. http://dx.doi.org/10.3390/molecules23113003.

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In recent years, investigations into the biochemistry of insect-associated bacteria have increased. When combined with analytical dereplication processes, these studies provide a powerful strategy to identify structurally and/or biologically novel compounds. Non-ribosomally synthesized cyclic peptides have a broad bioactivity spectrum with high medicinal potential. Here, we report the discovery of three new cyclic tripeptides: natalenamides A–C (compounds 1–3). These compounds were identified from the culture broth of the fungus-growing termite-associated Actinomadura sp. RB99 using a liquid chromatography (LC)/ultraviolet (UV)/mass spectrometry (MS)-based dereplication method. Chemical structures of the new compounds (1–3) were established by analysis of comprehensive spectroscopic methods, including one-dimensional (1H and 13C) and two-dimensional (1H-1H-COSY, HSQC, HMBC) nuclear magnetic resonance spectroscopy (NMR), together with high-resolution electrospray ionization mass spectrometry (HR-ESIMS) data. The absolute configurations of the new compounds were elucidated using Marfey’s analysis. Through several bioactivity tests for the tripeptides, we found that compound 3 exhibited significant inhibitory effects on 3-isobutyl-1-methylxanthine (IBMX)-induced melanin production. The effect of compound 3 was similar to that of kojic acid, a compound extensively used as a cosmetic material with a skin-whitening effect.

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Ge, Danhua, and Xue-Qiang Chu. "Multiple-fold C–F bond functionalization for the synthesis of (hetero)cyclic compounds: fluorine as a detachable chemical handle." Organic Chemistry Frontiers 9, no. 7 (2022): 2013–55. http://dx.doi.org/10.1039/d1qo01749g.

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