Recent Advances in the Coupling Reactions of Arylhydrazine via C—N Bond Cleavage

2016 ◽  
Vol 36 (8) ◽  
pp. 1790 ◽  
Author(s):  
Jinbiao Liu ◽  
Sitian Yuan ◽  
Xixi Song ◽  
Guanyinsheng Qiu
Keyword(s):  
Bond Cleavage ◽  
Coupling Reactions ◽  
Recent Advances

Withdrawal Notice: Recent Advances in Sonogashira Cross-Coupling Reactions Under Solvent-Free Conditions

2020 ◽  
Vol 24 ◽  
Author(s):  
Teng Wang ◽  
Zongrui Liu ◽  
Songlin Wang ◽  
Esmail Vessally
Keyword(s):  
Organic Chemistry ◽  
Editorial Policy ◽  
Cross Coupling ◽  
Solvent Free ◽  
Coupling Reactions ◽  
Editorial Policies ◽  
Cross Coupling Reactions ◽  
Recent Advances ◽  
Solvent Free Conditions ◽  
Copyright Permission

The article has been withdrawn at the request of editor of the journal Current Organic Chemistry: Bentham Science apologizes to the readers of the journal for any inconvenience this may have caused. The Bentham Editorial Policy on Article Withdrawal can be found at https://benthamscience.com/editorial-policies-main.php BENTHAM SCIENCE DISCLAIMER: It is a condition of publication that manuscripts submitted to this journal have not been published and will not be simultaneously submitted or published elsewhere. Furthermore, any data, illustration, structure or table that has been published elsewhere must be reported, and copyright permission for reproduction must be obtained. Plagiarism is strictly forbidden, and by submitting the article for publication the authors agree that the publishers have the legal right to take appropriate action against the authors, if plagiarism or fabricated information is discovered. By submitting a manuscript, the authors agree that the copyright of their article is transferred to the publishers if and when the article is accepted for publication.

Double C–H Activation for the C–C bond Formation Reactions

2018 ◽  
Vol 15 (7) ◽  
pp. 882-903 ◽  
Author(s):  
Jialin Liu ◽  
Xiaoyu Xiong ◽  
Jie Chen ◽  
Yuntao Wang ◽  
Ranran Zhu ◽  
...  
Keyword(s):  
Molecular Design ◽  
Bond Cleavage ◽  
Bond Formation ◽  
Hypervalent Iodine ◽  
Coupling Reactions ◽  
Bond Forming ◽  
Direct Functionalization ◽  
Catalyzed Reactions ◽  
Medium Ring ◽  
Bond Formation Reactions

Background: Among the numerous bond-forming patterns, C–C bond formation is one of the most useful tools for building molecules for the chemical industry as well as life sciences. Recently, one of the most challenging topics is the study of the direct coupling reactions via multiple C–H bond cleavage/activation processes. A number of excellent reviews on modern C–H direct functionalization have been reported by Bergman, Bercaw, Yu and others in recent years. Among the large number of available methodologies, Pdcatalyzed reactions and hypervalent iodine reagent mediated reactions represent the most popular metal and non-metal involved transformations. However, the comprehensive summary of the comparison of metal and non-metal mediated transformations is still not available. Objective: The review focuses on comparing these two types of reactions (Pd-catalyzed reactions and hypervalent iodine reagent mediated reactions) based on the ways of forming new C–C bonds, as well as the scope and limitations on the demonstration of their synthetic applications. Conclusion: Comparing the Pd-catalyzed strategies and hypervalent iodine reagent mediated methodologies for the direct C–C bond formation from activation of C-H bonds, we clearly noticed that both strategies are powerful tools for directly obtaining the corresponding pruducts. On one hand, the hypervalent iodine reagents mediated reactions are normally under mild conditions and give the molecular diversity without the presence of transition-metal, while the Pd-catalyzed approaches have a broader scope for the wide synthetic applications. On the other hand, unlike Pd-catalyzed C-C bond formation reactions, the study towards hypervalent iodine reagent mediated methodology mainly focused on the stoichiometric amount of hypervalent iodine reagent, while few catalytic reactions have been reported. Meanwhile, hypervalent iodine strategy has been proved to be more efficient in intramolecular medium-ring construction, while there are less successful examples on C(sp3)–C(sp3) bond formation. In summary, we have demonstrated a number of selected approaches for the formation of a new C–C bond under the utilization of Pd-catalyzed reaction conditions or hyperiodine reagents. The direct activations of sp2 or sp3 hybridized C–H bonds are believed to be important strategies for the future molecular design as well as useful chemical entity synthesis.

Recent advances in transition-metal-catalysed asymmetric coupling reactions with light intervention

2021 ◽  
Author(s):  
Fu-Dong Lu ◽  
Jun Chen ◽  
Xuan Jiang ◽  
Jia-Rong Chen ◽  
Liang-Qiu Lu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Coupling Reactions ◽  
Recent Advances ◽  
Modern Chemistry ◽  
Asymmetric Coupling

The advances on transition-metal catalysed asymmetric couplings with light intervention in recent years was summarized in this review. In order to better meet the needs of modern chemistry, further research outlook was also proposed.

The recent advances in K2S2O8-mediated cyclization/coupling reactions via an oxidative transformation

2020 ◽  
Vol 56 (96) ◽  
pp. 15101-15117
Author(s):  
Sumit Kumar ◽  
Kishor Padala
Keyword(s):  
Organic Synthesis ◽  
Coupling Reactions ◽  
Oxidative Transformation ◽  
Recent Advances

Recently the K2S2O8 mediated cyclization/coupling reactions to construct carbon–carbon/carbon–heteroatom bond via oxidative transformation is became much interesting in organic synthesis.

Recent advances and perspectives in copper-catalyzed Sonogashira coupling reactions

RSC Advances ◽  
2014 ◽  
Vol 4 (42) ◽  
pp. 21688-21698 ◽  
Author(s):  
Anns Maria Thomas ◽  
Asha Sujatha ◽  
Gopinathan Anilkumar
Keyword(s):  
Coupling Reactions ◽  
Sonogashira Coupling ◽  
Recent Advances

The review highlights the origin, development, mechanistic insights and recent applications of Cu-catalyzed Sonogashira coupling reactions.

Palladium-Catalyzed Carbonylative Coupling Reactions of N ,N -Bis(methanesulfonyl)amides through C-N Bond Cleavage

2018 ◽  
Vol 2018 (41) ◽  
pp. 5717-5724 ◽  
Author(s):  
Minkyung Lim ◽  
Hyeji Kim ◽  
Jaeyoung Ban ◽  
Junghan Son ◽  
Jae Kyun Lee ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
Coupling Reactions ◽  
Palladium Catalyzed
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