Useful base promoted elaborations of oxiranyl ethers
摘要:
Functionalized oxiranyl ethers can be regio- and stereoselectively converted into hydroxy oxetanes or cis-diols by treatment with organometallic bases. These two rearrangements can be conveniently carried out either using different reaction conditions starting from the oxirane or in two consecutive steps from the oxirane via the oxetane. (C) 2001 Elsevier Science Ltd. All rights reserved.
efficient method for the synthesis of synthetically useful non-racemic allylic alcohols from 4-methylbenzenesulfonates of non-racemic 2,3-epoxy alcohols is described. Satisfactory yields are obtained by treatment of 4-methylbenzenesulfonates of non-racemic 2,3-epoxy alcohols with potassiumiodide followed by zinc powder and ammonium chloride in a one-pot manner. The method has been successfully applied to
A new enzyme catalysed kinetic resolution of cis-4-benzyloxy-2,3-epoxybutanol has been reported. Efficient, scalable separation of the optically active alcohol from its ester derivative has been solved with liquid-liquid and solid-liquid extraction methods using commercial organic solvents and supercritical carbon dioxide. cis-4-Benzyloxy-2,3-epoxy-1-butanol enantiomers were applied for the enantio selective synthesis of (2S,3S,1'S)- and (2R,3R,1'R)-3-[2'-(dibenzylamino)-1'-hydroxyethyl]-2-phenyloxetane. (c) 2005 Elsevier Ltd. All rights reserved.
Balmer, Ethnie; Germain, Andrew; Jackson, William P., Journal of the Chemical Society. Perkin transactions I, 1993, # 4, p. 399 - 400
作者:Balmer, Ethnie、Germain, Andrew、Jackson, William P.、Lygo, Barry
DOI:——
日期:——
SOULIE, J.;LAMPILAS, M.;LALLEMAND, J. Y., TETRAHEDRON, 43,(1987) N 12, 2701-2708