Chelation-controlled protocol for the diastereoselective reduction of ketones
摘要:
A new chelation-controlled, alpha-chiral ketone reduction protocol is presented based on titanium tetrachloride and a wide variety of reducing agents. Features of the proposed intermediate titanium chelates necessary to obtain high diastereoselectivity are discussed.
DOI:
10.1021/jo00083a004
作为产物:
描述:
乳酸乙酯 、 溴甲苯 以
四氢呋喃 、 正己烷 、 乙酸乙酯 、 mineral oil 为溶剂,
以13.2 g (75%)的产率得到ethyl (2S)-2-benzoylpropanate
参考文献:
名称:
Process for the production of (S)-vinyl and allenyl gaba
Process for the production of (S)-vinyl and allenyl gaba
申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US05208345A1
公开(公告)日:1993-05-04
The present invention is directed to a new class of pyrrolidinone derivatives that are useful as chemical intermediates in the synthesis of S-allenyl and S-vinyl GABA, both of which are antiepileptic agents.
Chelation-controlled protocol for the diastereoselective reduction of ketones
作者:Christopher R. Sarko、Ian C. Guch、Marcello DiMare
DOI:10.1021/jo00083a004
日期:1994.2
A new chelation-controlled, alpha-chiral ketone reduction protocol is presented based on titanium tetrachloride and a wide variety of reducing agents. Features of the proposed intermediate titanium chelates necessary to obtain high diastereoselectivity are discussed.