Diastereocontrol in the opening of vic-acceptor-donor cyclopropanes. Application to the synthesis of (cis) 1-EWG-2-hydroxymethylcyclopropanes
摘要:
Basic intramolecular ring opening reactions of vicinally substituted acceptor-donnor (trans)-cyclopropanes were studied. An application to the diastereoselective synthesis of (cis)-1-EWG-2-hydroxymethylcyclopropanes is presented.
Thieno-pyrimidine compounds having fungicidal activity
申请人:Brewster Kirkland William
公开号:US20060089370A1
公开(公告)日:2006-04-27
The present invention relates to thieno[2,3-d]-pyrimidine compounds having fungicidal activity.
本发明涉及具有杀真菌活性的噻吩[2,3-d]-嘧啶化合物。
Acidic isomerization of vicinally substituted (cis)-acceptor-donor cyclopropanes via an open ring mechanism
作者:Luc Dechoux、Eric Doris
DOI:10.1016/s0040-4039(00)73037-1
日期:1994.3
Many (cis)-cyclopropanes bearing 1-electronwithdrawing and 2-hydroxymethylene groups were synthetised and isomerized under midl acidic conditions to afford the corresponding trans isomers. The mechanism is reported.