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Journal articles on the topic 'Difunctionalised compounds'

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Published: 5 June 2025
Last updated: 1 August 2025

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1

Avijit, Banerji. "Studies on 1,3-dipolar cycloadditions." Journal of Indian Chemical Society Vol. 77, Nov-Dec 2000 (2000): 637–49. https://doi.org/10.5281/zenodo.5869824.

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Centre of Advanced Studies on Natural Products, Department of Chemistry, University of Calcutta, 92 Acharya Prafulla Chandra Road, Calcutta-700 009, India <em>E-mail :&nbsp;ab@cucc.ernet.in</em> &nbsp; <em>Manuscript received 2 November 2000</em> Studies on 1,3-dipolar cycloadditions
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2

Edwards, Andrew J., Brian F. G. Johnson, Simon Parsons, and Douglas S. Shephard. "Difunctionalised arene Ru6C cluster compounds with electron-withdrawing groups." Journal of the Chemical Society, Dalton Transactions, no. 19 (1996): 3837. http://dx.doi.org/10.1039/dt9960003837.

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3

Bhaswati, Bhattacharyya, and Dhara Kaliprasanna. "Highly efficient, mild, one pot synthesis of 2-substituted benzimidazoles, benzothiazoles and pyridoimidazoles promoted by N-iodosuccinimide." Journal of Indian Chemical Society Vol. 90, Oct 2013 (2013): 1749–59. https://doi.org/10.5281/zenodo.5791892.

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Department of Chemistry, Hooghly Mohsin College, Hooghly-712 101, West Bengal, India Department of Chemistry, University College of Science &amp; Technology, University of Calcutta, Kolkata-700 009, India <em>E-mail </em>: kali.dhara@gmail.com <em>Manuscript received 07 June 2013, accepted 13 June 2013</em> A common and highly efficient metal-free route for the synthesis of 2-substituted benzimidazoles, benzothiazoles and pyridoimidazoles from suitable 1,2-difunctionalised aromatic compounds and various aromatic and aliphatic aldehydes and ferrocenecarboxaldehyde was developed using N-iodosucc
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4

Huang, Pei-Qiang, Wei Ou та Jian-Liang Ye. "Aza-Knoevenagel-type condensation of secondary amides: direct access to N-monosubstituted β,β-difunctionalized enamines". Organic Chemistry Frontiers 2, № 9 (2015): 1094–106. http://dx.doi.org/10.1039/c5qo00191a.

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5

Lübcke, Marvin, Dina Bezhan, and Kálmán J. Szabó. "Trifluoromethylthiolation–arylation of diazocarbonyl compounds by modified Hooz multicomponent coupling." Chemical Science 10, no. 23 (2019): 5990–95. http://dx.doi.org/10.1039/c9sc00829b.

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Multicomponent reaction of diazocarbonyl and dibenzenesulfonimide-SCF<sub>3</sub> reagents with BAr<sub>4</sub> salts in the presence of Zn(NTf<sub>2</sub>)<sub>2</sub> gives α,α′-difunctionalized trifluoromethylthio compounds.
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6

Gulea, Mihaela, Isabelle Abrunhosa, Jozef Drabowicz, et al. "New Chiral Ortho-P,S-Difunctionalized Aromatic Compounds." Phosphorus, Sulfur, and Silicon and the Related Elements 180, no. 5-6 (2005): 1267–72. http://dx.doi.org/10.1080/10426500590911467.

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7

Zheng, Purui, Yujie Zhai, Xiaoming Zhao, and Tao XU. "Difunctionalization of ketones via gem-bis(boronates) to synthesize quaternary carbon with high selectivity." Chemical Communications 54, no. 95 (2018): 13375–78. http://dx.doi.org/10.1039/c8cc07781a.

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A transformation of gem-bis(boronate) compounds with different electrophiles through a tertiary boronate intermediate to concurrently introduce aldehyde and allylic groups, which provides an efficient protocol to difunctionalize ketones, was reported.
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8

Marian, Aline, and Gerhard Maas. "Diethyl (iodoethynyl)phosphonate and (iodoethynyl)diphenylphosphane oxide: crystal structures and some cycloaddition reactions." Zeitschrift für Naturforschung B 75, no. 6-7 (2020): 529–36. http://dx.doi.org/10.1515/znb-2020-0047.

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AbstractThe title compounds are difunctionalized acetylenic building blocks, which can serve as electrophilic dienophiles and dipolarophiles in [4+2] and azide-iodoalkyne [3+2] cycloaddition reactions, which, however, require strong thermal activation. In their crystal structures, they are self-complementary tectons, which are arranged in polymeric chains maintained by very short intermolecular Csp–I···O=P halogen bonds.
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9

Pattison, Graham, and George R. A. Garratt. "Formation of Boron Enolates by Nucleophilic Substitution." Synlett 31, no. 17 (2020): 1656–62. http://dx.doi.org/10.1055/s-0040-1707181.

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Enolates have proven to be one of the key building blocks available to the synthetic chemist. Here we summarize a novel strategy for their preparation, involving the addition of α-borylated nucleophiles to esters to yield boron enolates. The enolates prepared by the addition of lithiated geminal bis(boron) compounds to esters can be trapped with two equivalents of halogen and alkyl electrophiles to yield α,α-difunctionalized compounds.1 Introduction2 Ketone Difunctionalization3 Boron Enolates by Coupling4 Towards Sequential Trapping5 Summary and Outlook
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10

Fañanás, Francisco J., Mónica Álvarez-Pérez, and Félix Rodríguez. "IPy2BF4-Mediated Rearrangements of 1,2-Difunctionalized Compounds and Olefins." Chemistry - A European Journal 11, no. 20 (2005): 5938–44. http://dx.doi.org/10.1002/chem.200500070.

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11

Erb, William, and Florence Mongin. "Twofold Ferrocene C–H Lithiations For One-Step Difunctionalizations." Synthesis 51, no. 01 (2018): 146–60. http://dx.doi.org/10.1055/s-0037-1610396.

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For some aromatics, a twofold C–H deprotolithiation can be achieved, allowing these compounds to be subsequently difunctionalized in one step. This short review brings together examples in which ferrocenes are converted in this way.1 Introduction2 Bare Ferrocene3 Ferrocenes Substituted by Alkyl or Silyl Groups4 Ferrocenes Substituted by Aminoalkyls5 Ferrocenes Substituted by Halogens or Oxygen-Based Groups6 Ferrocenes Substituted by Alkoxyalkyls or Acetals7 Ferrocenes Substituted by Sulfoxides8 Ferrocenes Substituted by Oxazolines9 Ferrocenes Substituted by Carboxamides10 Conclusion
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12

Bleckmann, P., U. Englich, U. Hermann, et al. "Synthesis and Reactivity of Novel Bis(stannyl)silanes." Zeitschrift für Naturforschung B 54, no. 9 (1999): 1188–96. http://dx.doi.org/10.1515/znb-1999-0916.

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Bis(stannyl)silanes of types R3Sn-SiR′2-SnR3 and R2(H)Sn-SiR′2-Sn(H)R2 with R′ being methyl, phenyl, iso-propyl or terf-butyl have been synthesized by treatment of difunctionalized diorganosilanes with alkali stannides (R = Me, tBu; R′= Me, iPr; 1 - 6, 8 ) or with triphenyltin chloride and magnesium (R = Ph; R′ = Me, iPh;Pr; 7, 9). Me3Sn-SitBu2-SnMe3 4, was halogenated using SnCl4, to yield the bis(chlorostannyl)silane 11. The reaction of bis(stannyl)diorganosilanes R3SnSiR′SnR3 with catalytic amounts of Pd(PPh3)4 resulted in unexpected rearrangements under formation of the silyldistannanes R3
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13

Hurley, Dennis J., and Yitzhak Tor. "Lowering the symmetry of difunctionalized coordination compounds via nucleophilic aromatic substitutions." Tetrahedron Letters 42, no. 41 (2001): 7217–20. http://dx.doi.org/10.1016/s0040-4039(01)01540-4.

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14

Hazard, R., M. Jubault, C. Mouats, and A. Tallec. "Electrochemical synthesis of quinoline derivatives—III. Electroreduction of difunctionalized o-nitrobenzoyl compounds." Electrochimica Acta 33, no. 10 (1988): 1335–41. http://dx.doi.org/10.1016/0013-4686(88)80123-3.

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15

González, Yisett, Randy Mojica-Flores, Dilan Moreno-Labrador, et al. "Polyphenols with Anti-Inflammatory Properties: Synthesis and Biological Activity of Novel Curcumin Derivatives." International Journal of Molecular Sciences 24, no. 4 (2023): 3691. http://dx.doi.org/10.3390/ijms24043691.

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Herein, we describe the synthesis and evaluation of anti-inflammatory activities of new curcumin derivatives. The thirteen curcumin derivatives were synthesized by Steglich esterification on one or both of the phenolic rings of curcumin with the aim of providing improved anti-inflammatory activity. Monofunctionalized compounds showed better bioactivity than the difunctionalized derivatives in terms of inhibiting IL-6 production, and known compound 2 presented the highest activity. Additionally, this compound showed strong activity against PGE2. Structure–activity relationship studies were carr
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16

Das, Jonali, and Sajal Kumar Das. "Regioselectivity of the SEAr-based cyclizations and SEAr-terminated annulations of 3,5-unsubstituted, 4-substituted indoles." Beilstein Journal of Organic Chemistry 18 (March 8, 2022): 293–302. http://dx.doi.org/10.3762/bjoc.18.33.

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Indole-3,4- and 4,5-fused carbo- and heterocycles are ubiquitous in bioactive natural products and pharmaceuticals, and hence, a variety of synthetic approaches toward such compounds have been developed. Among these, cyclization and annulation of 3,5-unsubstituted, 4-substituted indoles involving an electrophilic aromatic substitution (SEAr) as the ring closure are particularly attractive, because they avoid the use of 3,4- or 4,5-difunctionalized indoles as starting materials. However, since 3,5-unsubstituted, 4-substituted indoles have two potential ring-closure sites (indole C3 and C5 posit
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17

Witt, Timo, Florian Stempfle, Philipp Roesle, Manuel Häußler та Stefan Mecking. "Unsymmetrical α,ω-Difunctionalized Long-Chain Compounds via Full Molecular Incorporation of Fatty Acids". ACS Catalysis 5, № 8 (2015): 4519–29. http://dx.doi.org/10.1021/acscatal.5b00825.

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18

Vadra, Nahir, Lisandro J. Giovanetti, Pablo H. Di Chenna, and Fabio D. Cukiernik. "Columnar Mesophases and Organogels Formed by H-Bound Dimers Based on 3,6-Terminally Difunctionalized Triphenylenes." Gels 11, no. 1 (2024): 9. https://doi.org/10.3390/gels11010009.

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A series of triphenylene (TP) compounds—denoted 3,6-THTP-DiCnOH—bearing four hexyloxy ancillary chains and two variable-length alkoxy chains terminally functionalized with hydroxyl groups have been synthesized and characterized. The shorter homologs revealed mesogenic characteristics, giving rise to thermotropic mesophases in which π-stacked columns of H-bound dimers self-organize yielding superstructures. Molecular-scale models are proposed to account for their structural features. The three studied compounds yielded supramolecular gels in methanol; their ability to gelify higher alcohols was
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19

Rzonsowska, Monika, Katarzyna Kozakiewicz, Katarzyna Mituła, Julia Duszczak, Maciej Kubicki, and Beata Dudziec. "Synthesis of Silsesquioxanes with Substituted Triazole Ring Functionalities and Their Coordination Ability." Molecules 26, no. 2 (2021): 439. http://dx.doi.org/10.3390/molecules26020439.

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A synthesis of a series of mono-T8 and difunctionalized double-decker silsesquioxanes bearing substituted triazole ring(s) has been reported within this work. The catalytic protocol for their formation is based on the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) process. Diverse alkynes were in the scope of our interest—i.e., aryl, hetaryl, alkyl, silyl, or germyl—and the latter was shown to be the first example of terminal germane alkyne which is reactive in the applied process’ conditions. From the pallet of 15 compounds, three of them with pyridine-triazole and thiophenyl-triazole
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20

Gouda, Moustafa A., Hanan I. Althagbi, Nourah A. Al Zahrani, Ameen A. Abu-Hashem, Tahah A. Ameen, and Alshymaa Z. Al-Mokadem. "Synthesis, reactions and applications of pyrimido[2,1-a]isoquinolines derived from 1, 2-difunctionalized pyrimidine derivatives (Part V)." INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY 35, no. 01 (2025): 1. https://doi.org/10.59467/ijhc.2025.35.1.

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Pyrimido[2,1-a]isoquinolines (Py-[2,1-a]isoQs) are a class of heterocyclic compounds that have gained significant attention in the fields of organic chemistry, medicinal chemistry, and materials science. (Py-[2,1-a]isoQs) consist of a pyrimidine ring fused to an isoquinoline ring. This unique structure imparts distinct electronic and steric properties, making them attractive for various applications. They have been explored as potential therapeutic agents for treating cancer, and infectious diseases; their planar structure and conjugation make them suitable for applications in organic electron
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21

Takahashi, Tamotsu, Shi Li, Lishan Zhou, Zhiyi Song, Fengyu Bao, and Ken-ichiro Kanno. "Effect of Substituents at 1,4-Positions of Polycyclic Aromatic Compounds and Preparation of 2,3-Difunctionalized Pentacenes and Naphthacenes." HETEROCYCLES 73, no. 1 (2007): 519. http://dx.doi.org/10.3987/com-07-s(u)28.

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22

Barluenga, José, Francisco J. González, Vicente Gotor, and Santos Fustero. "Cycloaddition of unactivated 2-aza-1,3-dienes with heterocumulenes: a convenient route to the synthesis of 1,3-difunctionalized compounds." J. Chem. Soc., Perkin Trans. 1, no. 7 (1988): 1739–44. http://dx.doi.org/10.1039/p19880001739.

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23

Kao, Yang-Chin, Wei-Cheng Chen, Ahmed F. M. EL-Mahdy, Meei-Yu Hsu, Chih-Hao Lin, and Shiao-Wei Kuo. "High Thermal Resistance of Epoxy/Cyanate Ester Hybrids Incorporating an Inorganic Double-Decker-Shaped Polyhedral Silsesquioxane Nanomaterial." Molecules 27, no. 18 (2022): 5938. http://dx.doi.org/10.3390/molecules27185938.

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In this study, we prepared a difunctionalized cyanate ester double-decker silsesquioxane (DDSQ-OCN) cage with a char yield and thermal decomposition temperature (Td) which were both much higher than those of a typical bisphenol A dicyanate ester (BADCy, without the DDSQ cage) after thermal polymerization. Here, the inorganic DDSQ nanomaterial improved the thermal behavior through a nano-reinforcement effect. Blending the inorganic DDSQ-OCN cage into the epoxy resin improved its thermal and mechanical stabilities after the ring-opening polymerization of the epoxy units during thermal polymeriza
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24

Rodriguez, Jean, Hadjira Habib-Zahmani, Salih Hacini та Emmanuelle Charonnet. "A New Multicomponent Domino Transformation of 1,3-Dicarbonyl Compounds: One-Pot Regio-, Chemo- and Stereoselective Access to Valuable α,γ-Difunctionalized α-Ketoesters and Amides". Synlett 2002, № 11 (2002): 1827–30. http://dx.doi.org/10.1055/s-2002-34874.

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25

Kumar, Vikas, and Swapandeep Singh Chimni. "Metal‐Free Ring‐Opening of Epoxides." ChemistrySelect 8, no. 35 (2023). http://dx.doi.org/10.1002/slct.202301963.

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AbstractEpoxide ring is considered as an efficient structural toolbox to access 1,2‐difunctionalised compounds. Epoxide precursors are highly susceptible towards nucleophiles owing to its inherent ring strain. Metal free methodologies for epoxides ring opening with various nucleophiles provide an easy, economic and sustainable access to synthetically and biologically important 1,2‐difunctionalized compounds without harming the environment. This article highlights step by step development of various strategies for the ring opening of epoxides without the use of metal from last two decades. Use
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26

Kitcatt, David M., Katie Scott, Elena Rongione, Simon Nicolle, and Ai-Lan Lee. "Direct Decarboxylative Giese Amidations: Photocatalytic vs. Metal- and Light-free." Chemical Science, 2023. http://dx.doi.org/10.1039/d3sc03143h.

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A direct intermolecular decarboxylative Giese amidation reaction from bench stable, non-toxic and environmentally benign oxamic acids has been developed, which allows for easy access to 1,4-difunctionalised compounds which are not...
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27

Patra, Subrata, Vasiliki Valsamidou, Bhargav N. Nandasana, and Dmitry Katayev. "Correction: Photoredox radical/polar crossover enables carbo-heterofunctionalization of alkenes: facile access to 1,3-difunctionalized nitro compounds." Chemical Communications, 2025. https://doi.org/10.1039/d5cc90151k.

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Correction for ‘Photoredox radical/polar crossover enables carbo-heterofunctionalization of alkenes: facile access to 1,3-difunctionalized nitro compounds’ by Subrata Patra et al., Chem. Commun., 2025, 61, 1689–1692, https://doi.org/10.1039/D4CC06005A.
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28

Paul, Sufal, Rahul Mondal та K. Geetharani. "Synthesis of α‐Seleno Boronates via Diboration of Carbonyl Compounds". Chemistry – An Asian Journal, 26 вересня 2023. http://dx.doi.org/10.1002/asia.202300761.

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A method has been described for accessing α‐seleno alkyl boronates. The selenoboration was achieved via the diboration of carbonyl compounds to give α‐oxyl boronates, which then undergo 1,2‐metalate rearrangement in the presence of lithium selenolates and trifluoroacetic anhydride (TFAA). A variety of structurally diverse substrates were compatible with this protocol and efficiently provides difunctionalized products from simple starting materials. The presence of the boronic ester in the resulting organoselenium compounds serves as a versatile synthetic handle for various functionalizations.
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29

Gouda, Moustafa A., Amin A. Abu-hashem, Tahah A. Ameen, Reem A. K. Alharbi, and Khalid Althumayri. "Synthesis, Reactions and Biological Activities of Pyrimido[4,5-c] Isoquinolines (Part III)." Letters in Organic Chemistry 22 (January 27, 2025). https://doi.org/10.2174/0115701786359233241220074609.

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Isoquinoline and pyrimidine are valuable heterocyclic compounds that play a crucial role in the development of new drug molecules. The combination of isoquinoline and pyrimidine moieties in hybrid structures has provided exciting possibilities for various applications, leading to the discovery of pyrimidoisoquinoline (PyIsoQ) compounds, such as pyrimido[4,5-c]isoquinolines and pyrimido[5,4-c]isoquinolines, which exhibit intriguing properties. Pyrimido[4,5-c]isoquinolines (Py[4,5- c]IsoQs) can be synthesized from functionalized pyrimidine or isoquinoline. This review focuses on the synthesis of
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30

Wang, Jinsong, Chengliu Jin, Jialin Chen, et al. "Visible‐light‐induced difunctionalization of styrenes with 4‐cyanopyridines and thioacetates or thiosulfonates." Advanced Synthesis & Catalysis, March 12, 2025. https://doi.org/10.1002/adsc.202500041.

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Simultaneous thiolation/pyridinylation of alkenes was achieved in a three‐component reaction under visible‐light‐induced conditions. By employing 4CzIPN as a photocatalyst and DIPEA as a base, a variety of alkenes and cyanopyridines reacted well with thioacetates or thiosulfonates to obtain the difunctionalized products in excellent yields with high regio‐selectivity. The thiolation/pyridinylation products could easily transfer to 4‐(1‐phenylvinyl)pyridine or dithioperoxoate compounds. Furthermore, the in vitro antitumor activities of selected compounds were screened through MTT assay and the
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31

Gouda, Mousafa Ahmed, A. A. Abu-hashem, taha A. Ahmed, Saif H. Althagafi, waffa hamama, and Abdel-Galil M. Khalil. "Pyrimido[5,4‐c]quinolines: Synthesis from 3,4‐Di‐functionallized Quinoline, Reactivity and Biological Activities." Chemistry & Biodiversity, January 9, 2024. http://dx.doi.org/10.1002/cbdv.202301968.

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Quinoline and pyrimidine moieties are ubiquitous components in both natural and synthetic compounds, showcasing diverse applications. The fusion of these well‐known structures into hybrid molecules has garnered attention due to their intriguing biological properties. Particularly in the field of medicinal chemistry, numerous studies in the last decade have focused on pyrimido[5,4‐c]quinoline ring systems (PyQs5,4‐c). This review elucidates the synthesis of PyQs5,4‐c and their derivatives using 3,4‐difunctionalized quinoline as a key starting material. The preparation of PyQs5,4‐c involves a se
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32

Maheshwari, Mittali, and Nazar Hussain. "Difunctionalization of Glycals and their Derivatives: Strategies and Applications in the Synthesis of Bioactive Compounds." Advanced Synthesis & Catalysis, March 26, 2025. https://doi.org/10.1002/adsc.202401517.

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Glycals serve as crucial donor molecules in the synthesis of biologically active compounds. These moieties can undergo functionalization at various positions, such as C‐1, C‐2, and di‐functionalization at multiple sites, including 1,2‐difunctionalization, 2,3‐difunctionalization, and 1,3‐difunctionalization. Among these, 1,2‐difunctionalization can be achieved using diverse methodologies, including metal‐catalyzed reactions, cyclopropane ring opening, epoxide ring opening, and more. Additionally, glycals can be converted into dihalogenated compounds through simple and efficient protocols.Moreo
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33

Gulea, Mihaela, and Serge Masson. "Recent Advances in the Chemistry of Difunctionalized Organo-Phosphorus and Organo-Sulfur Compounds." ChemInform 35, no. 37 (2004). http://dx.doi.org/10.1002/chin.200437268.

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34

Duszczak-Kaczmarek, Julia, Katarzyna Mituła-Chmielowiec, Monika Rzonsowska, et al. "Preparation of T8 and double-decker silsesquioxane-based Janus-type molecules: molecular modeling and DFT insights." Scientific Reports 14, no. 1 (2024). http://dx.doi.org/10.1038/s41598-024-69481-6.

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AbstractWe present a methodology for the synthesis of inorganic-organic Janus-type molecules based on mono-T8 and difunctionalized double-decker silsesquioxanes (DDSQs) via hydrosilylation reactions, achieving exceptionally high yields and selectivities. The synthesized compounds were extensively characterized using various spectroscopic techniques, and their sizes and spatial arrangements were predicted through molecular modelling and density functional theory (DFT) calculations. Quantum chemical calculations were employed to examine the interactions among four molecules of the synthesized co
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35

Patra, Subrata J., Vasiliki Valsamidou, Bhargav Nandasana, and Dmitry Katayev. "Photoredox Radical/Polar Crossover Enables Carbo-Heterofunctionalization of Alkenes: Facile Access to 1,3-Difunctionalized Nitro Compounds." Chemical Communications, 2025. https://doi.org/10.1039/d4cc06005a.

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Herein, we present an efficient and practical method for multicomponent carbo-heterofunctionalization of alkenes via radical-polar crossover photoredox catalysis. Employing geminal bromonitroalkanes as redox-active reagents with a wide range of O-centered...
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36

Pal, Tanay, Premananda Ghosh, Minhajul Islam, et al. "Tandem dehydrogenation-olefination-decarboxylation of cycloalkyl carboxylic acids via multifold C–H activation." Nature Communications 15, no. 1 (2024). http://dx.doi.org/10.1038/s41467-024-49359-x.

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AbstractDehydrogenation chemistry has long been established as a fundamental aspect of organic synthesis, commonly encountered in carbonyl compounds. Transition metal catalysis revolutionized it, with strategies like transfer-dehydrogenation, single electron transfer and C–H activation. These approaches, extended to multiple dehydrogenations, can lead to aromatization. Dehydrogenative transformations of aliphatic carboxylic acids pose challenges, yet engineered ligands and metal catalysis can initiate dehydrogenation via C–H activation, though outcomes vary based on substrate structures. Herei
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37

Nakagawa, Yoshinao, Mizuho Yabushita, and Keiichi Tomishige. "Oxidative Cleavage of C‐C Bonds in Non‐aromatic Oxygenates with Molecular Oxygen for Synthesis of Carboxylic Acids." Asian Journal of Organic Chemistry, September 11, 2023. http://dx.doi.org/10.1002/ajoc.202300409.

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Oxidative carbon‐carbon cleavage reactions of non‐aromatic oxygenates such as vicinal diols are reviewed. In comparison with aromatic oxygenates where the benzyl positions are easily oxidized, non‐aromatic alcohols are difficult to be oxidized. The use of excess base in combination with metal catalysts is a typical approach, and the oxidations of 1,2‐cyclohexanediol and dihydroxylated derivatives of oleic acid have been reported with good yields of (di)carboxylate. Oxidation under acidic conditions typically uses vanadium as a key component of catalyst. Vanadium alone is active in oxidation of
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38

Li, Shi, Lishan Zhou, Zhiyi Song, Fengyu Bao, Ken-ichiro Kanno, and Tamotsu Takahashi. "ChemInform Abstract: Effect of Substituents at 1,4-Positions of Polycyclic Aromatic Compounds and Preparation of 2,3-Difunctionalized Pentacenes and Naphthacenes." ChemInform 39, no. 19 (2008). http://dx.doi.org/10.1002/chin.200819094.

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39

Riesinger, Christoph, Phillip Blank, Christian Scholtes, Ruth Gschwind, and Manfred Scheer. "Enhancing the Reactivity of an Aromatic cyclo‐P5 Ligand via Electrophilic Activation." Chemistry – A European Journal, September 30, 2024. http://dx.doi.org/10.1002/chem.202402675.

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Electrophilic activation of the aromatic cyclo‐P5 ligand in [Cp*Fe(h5‐P5)] is demonstrated to drastically enhance its reactivity towards weak nucleophiles. Unprecedented functionalized, contracted as well as complexly aggregated polyphosphorus compounds are accessed utilizing [Cp*Fe(h5‐P5Me)][OTf] (A), highlighting the great potential of this underexplored mode of reactivity. Addition of carbenes to A affords novel 1,2‐ or 1,1‐difunctionalized cyclo‐P5 complexes [Cp*Fe(h4‐P5(1‐L)(2‐Me)][OTf] (L = IDipp (1), EtCAAC (2), IiPr (3b)) and [Cp*Fe(h4‐P5(1‐IiPr)(1‐Me)][OTf] (3a). For the first time, t
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BARLUENGA, J., F. J. GONZALEZ, V. GOTOR, and S. FUSTERO. "ChemInform Abstract: Cycloaddition of Unactivated 2-Aza-1,3-dienes with Heterocumulenes: A Convenient Route to the Synthesis of 1,3-Difunctionalized Compounds." ChemInform 19, no. 44 (1988). http://dx.doi.org/10.1002/chin.198844198.

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Daneshyan, Sahar, and Gholamhossein Sodeifian. "Utilization of CO2 in supercritical conditions for the synthesis of cyclic poly (N-isopropylacrylamide) via emulsion and homogeneous reactions." Scientific Reports 12, no. 1 (2022). http://dx.doi.org/10.1038/s41598-022-19951-6.

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AbstractIn this study, cyclic poly (N-isopropylacrylamide) (cPNIPAAM) was synthesized in supercritical carbon dioxide (SC-CO2) using emulsion and homogeneous reactions for the first time. This was accomplished by applying free radical polymerization and nitroxide compounds to produce low molecular weight precursors in the SC-CO2 solvent. The cyclization reaction occurred in a homogeneous phase in the SC-CO2 solvent, with dimethylformamide (DMF) serving as a co-solvent for dissolving the linear precursor. This reaction was also conducted in emulsion of SC-CO2 in water. The effects of pressure a
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Habib-Zahmani, Hadjira, Salih Hacini, Emmanuelle Charonnet та Jean Rodriguez. "A New Multicomponent Domino Transformation of 1,3-Dicarbonyl Compounds: One-Pot Regio-, Chemo- and Stereoselective Access to Valuable α,γ-Difunctionalized α-Ketoesters and Amides." ChemInform 34, № 8 (2003). http://dx.doi.org/10.1002/chin.200308088.

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