Organolithium-Induced Alkylative Ring Opening of Aziridines: Synthesis of Unsaturated Amino Alcohols and Ethers
作者:David M. Hodgson、Bogdan Štefane、Timothy J. Miles、Jason Witherington
DOI:10.1021/jo0615201
日期:2006.10.1
Organolithium-induced alkylative ring opening of N-sulfonyl-protected aziridinyl ethers is described. The reactions were efficiently carried out with a variety of organolithiums, providing a promising new strategy to unsaturated aminoalcohols and ethers. Cis- and trans-1,4-dimethoxybut-2-ene-derived aziridines were prepared, and their propensity to undergo organolithium- induced alkylative desymmetrization
Organolithium-mediated conversion of β-functionalised aziridines into alkynyl amino alcohols and diamines
作者:Jianhui Huang、Peter O'Brien
DOI:10.1039/b510920e
日期:——
The direct conversion of dihydrofuran and dihydropyrrole N-triisopropylbenzenesulfonyl aziridines into alkynyl amino alcohols and diamines respectively can be achieved using 3 equiv. sec-butyllithiumâPMDETA in THF; use of n-butyllithium and (â)-sparteine in Et2O gave an alkynyl amino alcohol in 60% ee.