Metal-catalyzed radical-type transformation of unactivated alkyl halides with C–C bond formation under photoinduced conditions

2019 ◽  
Vol 6 (13) ◽  
pp. 2183-2199 ◽  
Author(s):  
Shengqing Ye ◽  
Tianyi Xiang ◽  
Xiaofang Li ◽  
Jie Wu
Keyword(s):  
Functional Group ◽  
Bond Formation ◽  
Alkyl Halides ◽  
Type Transformation ◽  
Recent Advances ◽  
Metal Catalyzed ◽  
Radical Type

Recent advances in the metal-catalyzed radical-type transformation of unactivated alkyl halides with C–C bond formation under photoinduced conditions are summarized. Usually, a broad reaction scope is observed including tertiary, secondary, and primary alkyl halides, with good functional group compatibility.

An Update on Direct C–H Bond Functionalization of Nitrogen-Containing Fused Heterocycles

Synthesis ◽  
2017 ◽  
Vol 49 (20) ◽  
pp. 4562-4585 ◽  
Author(s):  
Jessy Aziz ◽  
Sandrine Piguel
Keyword(s):  
Bond Formation ◽  
Bond Functionalization ◽  
Drug Candidates ◽  
Fused Heterocycles ◽  
Recent Advances ◽  
Metal Catalyzed

This report highlights the recent advances in direct C–H bond functionalization of 5,5- and 6,5-fused heterocycles containing at least two nitrogen atoms. Besides C–C bond formation, C–N, C–S, C–P, and C–Si bonds can also be created via a metal-catalyzed process. Some examples, where a C–H functionalization approach was applied for the synthesis of drug candidates, will be presented as well.1 Introduction2 C–H Functionalization Reactions of N-Containing Heterocycles2.1 Imidazo[1,2-a]pyridines2.2 Pyrrolo[1,2-a]pyrazines2.3 Imidazo[1,2-b]pyrazoles2.4 Imidazo[1,2-a]pyrimidines2.5 Imidazo[1,2-a]pyrazines and Imidazo[1,5-a]pyrazines2.6 Imidazo[1,2-b]pyridazines2.7 Imidazo[4,5-b]pyridines and Imidazo[4,5-c]pyridines2.8 Pyrazolo[3,4-b]pyridines2.9 Pyrazolo[1,5-a]pyrimidines2.10 Pyrrolo[2,3-d]pyrimidines and Pyrrolo[3,2-d]pyrimidines2.11 Imidazo[1,2-b][1,2,4]triazines2.12 Imidazo[1,2-b][1,2,4,5]tetrazines3 Outlook4 Conclusion

Phosphorus-Containing Groups Assisted Transition Metal Catalyzed C-H Activation Reactions

2019 ◽  
Vol 23 (2) ◽  
pp. 103-135 ◽  
Author(s):  
Chun-Ni Zhou ◽  
Zi-Ang Zheng ◽  
George Chang ◽  
Yuan-Chao Xiao ◽  
Yang-Huan Shen ◽  
...  
Keyword(s):  
Transition Metal ◽  
Functional Group ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Mechanistic Study ◽  
Recent Advances ◽  
Phosphorus Containing ◽  
Directing Group ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Over the last few decades, transition metal-catalyzed direct C-H activation with the assistance of a coordinating directing group has emerged as an atom- and stepeconomical synthetic tools to transform C–H bonds into carbon-carbon or carbonheteroatom bonds. Although the strategies involving regioselective C–H cleavage assisted by various directing groups have been extensively reviewed in the literature, we now attempt to give an overview of the recent advances on phosphorus-containing functional group assisted C-H activation reactions catalyzed by transition-metal catalysts including mechanistic study and synthetic applications. The discussion is directed towards C-H olefination, C-H activation/cyclization, C-H arylation, C-H amination, C-H hydroxylation and acetoxylation as well as miscellaneous C-H activation.

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