Synthesis of Enantiomerically Enriched Tertiary 2-Cyclohexene-1-thiols via Configurationally Stable α-Thio-Substituted Allyllithium Compounds
作者:Felix Marr、Dieter Hoppe
DOI:10.1021/ol0266828
日期:2002.11.1
[reaction: see text] (S)-S-(2-Cyclohexenyl) N,N-diisopropylmonothiocarbamate [(-)-(S)-8] was deprotonated by sec-butyllithium/TMEDA to form a configurationally stable lithium compound (S)-9, which is the first example of a new class of alpha-thio-substituted organolithiumcompounds with improved properties. It is regioselectively alkylated by alkylhalides with complete stereoinversion to form the