Copper(I)-Catalyzed Ketone, Amine, and Alkyne Coupling for the Synthesis of 2-Alkynylpyrrolidines and -piperidines
作者:Wim E. Van Beek、Joren Van Stappen、Philippe Franck、Kourosch Abbaspour Tehrani
DOI:10.1021/acs.orglett.6b02127
日期:2016.10.7
A Cu(I)-catalyzed coupling of a ω-chloro ketone, a primary amine, and an alkyne is described. This protocol allows for the synthesis of α-quaternary carbons in 2-alkynyl-substituted N-heterocycles. The keystep is the in situ generation of a cyclic ketiminium species, which has enhanced reactivity for alkynylation compared to acyclic ketiminium species.
A Highly Efficient and Selective AuI-Catalyzed Tandem Synthesis of Diversely Substituted Pyrrolo[1,2-a]quinolines in Aqueous Media
作者:Xin-Yuan Liu、Chi-Ming Che
DOI:10.1002/anie.200800160
日期:2008.5.5
Highly Efficient Cu(I)-Catalyzed Synthesis of <i>N</i>-Heterocycles through a Cyclization-Triggered Addition of Alkynes
作者:Junbin Han、Bo Xu、Gerald B. Hammond
DOI:10.1021/ja908883n
日期:2010.1.27
An aminoalkyne (terminal or internal) and a terminal alkyne furnish functionalized five-, six-, and seven- membered N-heterocycles in excellent yields via a Cu(I)-catalyzed, one-pot, tandem hydroamination/alkynylation process.
Synthetic evolutions in the nucleophilic addition to alkynes
作者:Bo Xu、Weibo Wang、Le-Ping Liu、Junbin Han、Zhuang Jin、Gerald B. Hammond
DOI:10.1016/j.jorganchem.2010.09.025
日期:2011.1
fluorine-engendered cationic gold catalysis. In addition, we have conducted the synthesis of O-heterocycles through a gold-catalyzed tandem addition/cycloisomerization sequence, the synthesis of N-heterocycles through a copper-catalyzed cyclization-triggered addition of alkynes, and a green synthesis of thioethers ‘on water’ without catalyst or initiator. These nucleophilic synthetic evolutions, catapulted by a simple