An operationally simple and environmentally benign protocol for a highly regio‐ and chemoselective preparation of β‐substituted alcohols by means of ring‐opening reactions of oxiranes with various aliphatic alcohols, H2O, NaN3, and NaCN as nucleophiles in the presence of catalytic amounts of zirconium tetrakis(dodecyl sulfate) as Lewis acid/surfactant‐combined catalysts (LASCs) was developed. The high
Pyrolysis of allyl ethers. Unimolecular fragmentation to propenes and carbonyl compounds
作者:R. C. Cookson、S. R. Wallis
DOI:10.1039/j29660001245
日期:——
about 500° allylethers undergo decomposition through a cyclic, six-atom transition state with transfer of a hydrogen atom to give high yields of a carbonylcompound and a propene, in which the double bond has moved from the 2,3- to the 1,2-position of the allyl system. The rate of reaction is rather insensitive to structural variation in either the allyl or alkyl part of the ether. Allyl α-deuterodiphenylmethyl
THE INFLUENCE OF SUBSTITUENTS ON THE EASE AND DIRECTION OF RING OPENING IN THE LiAlH<sub>4</sub>–AlCl<sub>3</sub> REDUCTIVE CLEAVAGE OF SUBSTITUTED 1,3-DIOXOLANES
作者:B. E. Leggetter、R. K. Brown
DOI:10.1139/v64-154
日期:1964.5.1
The room temperature hydrogenolysis by LiAlH4–AlCl3 of ether solutions of a number of 1,3-dioxolanes has been studied.Electron donor substituents on the C2 atom of the ring accelerate while electro...
[EN] MTORC MODULATORS AND USES THEREOF<br/>[FR] MODULATEURS DE MTORC ET LEURS UTILISATIONS
申请人:AEOVIAN PHARMACEUTICALS INC
公开号:WO2020154447A1
公开(公告)日:2020-07-30
Novel rapamycin analogs and uses thereof are disclosed herein. The rapamycin analogs of the present disclosure show increased mTORC1 specificity and lowered mTORC2 specificity relative to rapamycin.
The present invention provides an improved process for preparation of 2-phenyl ethanol. More specifically, the present invention relates to a process for preparing 2-phenyl ethanol by catalytic transfer hydrogenation of styrene oxide, in the presence of a supported transition metal catalyst. The catalyst system comprises of a palladium supported on silica, alumina, clay or charcoal.