Heteroethylene compounds and pharmaceutical and cosmetic compositions containing same
申请人:Galderma Research & Development S.N.C.
公开号:US06444709B1
公开(公告)日:2002-09-03
The invention relates to novel heteroethynylenic compounds having the general formula (I):
as well as to the use of these compounds in pharmaceutical compositions intended for use in human or veterinary medicine (dermatological, rheumatic, respiratory, cardiovascular and ophthalmological complaints in particular), or alternatively in cosmetic compositions.
Highly Enantioselective Epoxidation of α,β-Unsaturated Esters by Chiral Dioxirane
作者:Xin-Yan Wu、Xuegong She、Yian Shi
DOI:10.1021/ja020478y
日期:2002.7.1
This paper describes a highly enantioselective epoxidation of α,β-unsaturated esters using the fructose-derived ketone 2 as catalyst and Oxone as oxidant. High ee's have been obtained for a number of trans and trisubstituted substrates (82−98% ee). The results described show that it is feasible for dioxiranes to effectively epoxidize electron-deficientolefins with high ee's.
Lucking; Pfaltz, Synlett, 2000, # 9, p. 1261 - 1264
作者:Lucking、Pfaltz
DOI:——
日期:——
Cobalt-Catalyzed Hydrohydrazination of Dienes and Enynes: Access to Allylic and Propargylic Hydrazides
作者:Jérôme Waser、José C. González-Gómez、Hisanori Nambu、Pascal Huber、Erick M. Carreira
DOI:10.1021/ol0517473
日期:2005.9.1
The cobalt-catalyzed hydrohydrazination reaction of dienes and enynes is presented. Allylic and propargylic hydrazines were obtained in synthetically useful yields (allylic amines, 60-90%; propargylic arnines, 47-83%) and good chemo- and regioselectivity.