Highly Efficient and Diastereoselective Gold(I)-Catalyzed Synthesis of Tertiary Amines from Secondary Amines and Alkynes: Substrate Scope and Mechanistic Insights
作者:Xin-Yuan Liu、Zhen Guo、Sijia S. Dong、Xiao-Hua Li、Chi-Ming Che
DOI:10.1002/chem.201101982
日期:2011.11.11
without the need of isolation of air/moisture‐sensitive enamine intermediates, and under mild reaction conditions (mostly roomtemperature and mild reducing agents). Mechanistic studies by NMR spectroscopy, ESI‐MS, isotope labeling studies, and DFT calculations on this gold(I)‐catalyzed tandem reaction reveal that the first step involving a monomeric cationic gold(I)–alkyne intermediate is more likely than