Selective Construction of C−C and C=C Bonds by Manganese Catalyzed Coupling of Alcohols with Phosphorus Ylides
作者:Xin Liu、Thomas Werner
DOI:10.1002/adsc.202001209
日期:2021.2.16
manganese catalyzed coupling of alcohols with phosphorus ylides. The selectivity in the coupling of primary alcohols with phosphorus ylides to form carbon‐carbon single (C−C) and carbon‐carbon double (C=C) bonds can be controlled by the ligands. In the conversion of more challenging secondary alcohols with phosphorus ylides the selectivity towards the formation of C−C vs. C=C bonds can be controlled by the
Synthesis of α-stannyl α,β-unsaturated carboxylic esters
作者:Antonio J. Zapata、Corina Fortoul R.、Carola Acuña A.
DOI:10.1016/0022-328x(93)80069-n
日期:1993.4
A synthetic method for the preparation of α-stannyl α,β-unsaturated esters is described. The lithium enolate derived from tert-butyl α-(tri-n-butylstannyl)-α-(trimethylsilyl)acetate reacts with aldehydes to give moderate to good yields of α-stannylated products. The method is not applicable to enolizable ketones.
Carbonyl olefination with a-stannyl ester enolates: A new synthesis of α,β-unsaturated esters
作者:Antonio Zapata、Beatriz M. Núñez、Fernando J. Ferrer
DOI:10.1016/0022-328x(92)80013-n
日期:1992.2
The reaction of α-stannyl ester enolates with carbonyl compounds is described. α,β-Unsaturated esters are obtained in good yields. A reaction mec
描述了α-锡烷基酯烯酸酯与羰基化合物的反应。以高收率获得α,β-不饱和酯。反应机制
Matrix metalloprotease inhibitors
申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP0780386B1
公开(公告)日:2002-10-02
Peterson olefination reaction using (trimethylgermyl)acetate. Stereoselective synthesis of (E)-2-alkenoic acid esters
作者:Sumie Inoue、Yoshiro Sato
DOI:10.1021/jo00001a064
日期:1991.1
Peterson-type reaction of (trimethylgermyl)acetates 1 with aldehydes and ketones 2 gave stereoselectively (E)-2-alkenoic acid esters (E)-4 after stirring at -78-degrees-C and warming to room temperature. High yields of the reaction intermediates threo- and erythro-3-hydroxy-2-(trimethylgermyl)alkanoic acid esters 3 were obtained when the reaction was quenched at -78-degrees-C. The paths for conversion of threo-3 and erythro-3 to (E)-4 are discussed.