Copper-Catalyzed Tandem Oxidation−Olefination Process
摘要:
A novel catalytic sequence aerobic oxidation-olefination has been developed. A single and inexpensive copper,catalyst provides a large range of olefins from alcohols In good to excellent yields. The reaction exhibits excellent functional group compatibility, and the nonbasic reaction conditions allow the transformation of chiral substrates without racemization.
Copper-Catalyzed Tandem Oxidation−Olefination Process
作者:Michaël Davi、Hélène Lebel
DOI:10.1021/ol802299d
日期:2009.1.1
A novel catalytic sequence aerobic oxidation-olefination has been developed. A single and inexpensive copper,catalyst provides a large range of olefins from alcohols In good to excellent yields. The reaction exhibits excellent functional group compatibility, and the nonbasic reaction conditions allow the transformation of chiral substrates without racemization.
Stereoselective synthesis of substituted pyrrolidines
申请人:Actelion Pharmaceuticals Ltd.
公开号:EP2883876A1
公开(公告)日:2015-06-17
The present invention relates to a halo-lactonization process for the stereoselective preparation of protected 1-(halo-methyl)-3-oxo-2-oxa-5-azabicyclo[2.2.1]heptane derivatives of formula (II)
wherein Hal and R1 are as defined in the description. The invention further relates to the novel compounds of formula (II), and to their further transformation to the compounds of formula (III)
wherein R1, R2, R3, and R4 are as defined in the description.