Complete transfer of chirality in the [3,3]-sigmatropic rearrangement of allylic acetates catalyzed by palladium(II). Application to stereocontrolled syntheses of prostaglandins possessing either the C-15(S) or C-15(R) configuration
[EN] SILICON-BASED CROSS COUPLING AGENTS AND METHODS OF THEIR USE<br/>[FR] AGENTS DE COUPLAGE CROISÉ À BASE DE SILICIUM ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV PENNSYLVANIA
公开号:WO2016011231A1
公开(公告)日:2016-01-21
Compositions and methods using silicon-based cross-coupling agents in the formation of carbon-carbon and carbon-nitrogen bonds are described.
A simple preparation of R or S glycidic esters; Application to the synthesis of enantiomerically pure α-hydroxyesters.
作者:Marc Larchevêque、Yves Petit
DOI:10.1016/s0040-4039(00)96028-3
日期:1987.1
The simple preparation of enantiomerically pure α-hydroxyesters by the régioselective reaction of lithio and magnesiocuprates with glycidicesters or ′ readily available from serine is described.
[EN] SILICON-BASED CROSS COUPLING AGENTS<br/>[FR] AGENTS DE COUPLAGE CROISÉ À BASE DE SILICIUM ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV PENNSYLVANIA
公开号:WO2013185021A3
公开(公告)日:2014-01-30
The Design, Synthesis and Validation of Recoverable and Readily Reusable Siloxane Transfer Agents for Pd-Catalyzed Cross-Coupling Reactions
作者:Dionicio Martinez-Solorio、Adam T. Hoye、Minh H. Nguyen、Amos B. Smith
DOI:10.1021/ol400922j
日期:2013.5.17
The development of competent, recoverable and reusable 1-oxa-2-silacyclopentene (siloxane) transfer agents for Pd-catalyzed cross-coupling reactions (CCRs) of organolithium reagents with aryl and alkenyl iodides has been achieved. Drawbacks of the first-generation siloxane-transfer agent (1), relating to facile recovery for potential recycling, have been addressed.