Multicomponent Type II Anion Relay Chemistry (ARC): One-Pot Syntheses of 2,3-Disubstituted Furans and Thiophenes
作者:Nelmi O. Devarie-Baez、Won-Suk Kim、Amos B. Smith、Ming Xian
DOI:10.1021/ol900434k
日期:2009.4.16
Effective, one-pot syntheses of 2,3-disubstituted furans and thiophenes, exploiting 2-tert-butyldimethylsilyl-3-formylfuran and -thiophene as the respective bifunctional linchpins, have been developed. The synthetic protocol involves multicomponent type II Anion Relay Chemistry (ARC) mediated by a solvent-controlled C(sp2)→O 1,4-Brook rearrangement. Simple organolithiums and α-disubstituted ester enolates
利用 2-叔丁基二甲基甲硅烷基-3-甲酰基呋喃和-噻吩作为各自的双功能关键,已开发出有效的一锅法合成 2,3-二取代呋喃和噻吩。合成方案涉及多组分II型阿信联盟- [R elay Ç hemistry(ARC)通过溶剂控制的C(SP介导2)→O; 1,4-布鲁克重排。简单的有机锂和 α-二取代酯烯醇被证明是有效的引发亲核试剂。