New routes towards azomethine ylide generation from prolines to synthesize diverseN-heterocycles: a DFT supportedendo-selective mechanism
作者:Radha M. Laha、Shobhon Aich、Ankan Kumar Sarkar、Tanmoy Dutta、Narendra Nath Ghosh、Saikat Khamarui、Dilip K. Maiti
DOI:10.1039/d4ob01004c
日期:——
Azomethineylides are generated using either organocatalysts or metal catalysts via a ballet of decarboxylative C–N coupling choreographed by prolines. These strategies enable diastereoselective [3 + 2] cycloaddition, C–C coupling, and ring annulation, providing sustainable routes. The synthesized pyrrolizines and other heterocycles have potential applications in the development of crucial biomolecules
The Copper-Catalyzed Decarboxylative Coupling of the sp<sup>3</sup>-Hybridized Carbon Atoms of α-Amino Acids
作者:Hai-Peng Bi、Liang Zhao、Yong-Min Liang、Chao-Jun Li
DOI:10.1002/anie.200805122
日期:2009.1.12
Aldehyde- and Ketone-Induced Tandem Decarboxylation-Coupling (Csp<sup>3</sup>−Csp) of Natural α-Amino Acids and Alkynes
作者:Hai-Peng Bi、Qingfeng Teng、Min Guan、Wen-Wen Chen、Yong-Min Liang、Xiaojun Yao、Chao-Jun Li
DOI:10.1021/jo902319h
日期:2010.2.5
An interesting aldehyde- and ketone-induced intermolecular tandem decarboxylation-coupling (Csp(3)-Csp) catalyzed by copper with use of natural alpha-amino acids as starting materials is developed under neutral conditions with the production of CO2 and H2O as the only by products. Various functionalized nitrogen-containing compounds were obtained by this method. In these processes, interesting regioselectivites of the alkylation were observed, which has been rationalized by the relative stability of proposed resonance structures based on computation methods.