An unprecedented enantioselective deprotonation/conjugate elimination sequence, which transforms an allylic meso-dioxepane into a chiraldiene, is described. The best desymmetrization conditions (ee up to 70%) involve s-BuLi and sparteine at -78 ges/entities/deg.gif">C in THF.
NGLC 2004-2010.National Geological Library of China All Rights Reserved.
Add:29 Xueyuan Rd,Haidian District,Beijing,PRC. Mail Add: 8324 mailbox 100083
For exchange or info please contact us via email.