A simple catalytic system consisting of PdCl2 and N,N-dimethylacetamide enabled clean and selective synthesis of ketones from internal olefins using molecular oxygen. Various functionalized internal olefins were directly and regioselectively oxidized; C atoms of CC bonds far from substituted moieties were preferably oxidized.
A regio- and stereocontrolled access to 2,4-dienols by amide/alcoholate-promoted ring-opening of dihydro-pyrans
作者:Christian Margot、Manfred Schlosser
DOI:10.1016/s0040-4039(00)98505-8
日期:1985.1
Deracemization of (±)-cis-dialkyl substituted oxides via enantioconvergent hydrolysis catalysed by microsomal epoxide hydrolase
作者:Cinzia Chiappe、Antonio Cordoni、Giacomo Lo Moro、Consiglia Doriana Palese
DOI:10.1016/s0957-4166(97)00630-7
日期:1998.1
Both enantiomers of cis-(+/-)-2,3-epoxyheptane 1a, cis-3,4-epoxyheptane 1b, cis-3,4-epoxynonane 1c, cis-3,4-epoxynonane-1-ol Id, and cis-1-methoxy-3,4-epoxynonane le undergo a highly stereoselective microsomal epoxide hydrolase catalysed hydration at the (S) carbon to give the corresponding three (R,R)-diol at complete conversion. A total kinetic resolution of racemic epoxides is also obtained with la and 1e. (C) 1998 Elsevier Science Ltd. All rights reserved.
MARGOT, CHRISTIAN;RIZZOLIO, MICHELE;SCHLOSSER, MANFRED, TETRAHEDRON, 46,(1990) N, C. 2411-2424