Process for industrially producing optically active 1,4- benzodioxane derivative
申请人:Tanaka Tatsuyoshi
公开号:US20060167282A1
公开(公告)日:2006-07-27
A simple and safe method for producing optically active 1,4-benzodioxane derivatives useful as intermediates for pharmaceuticals and the like from inexpensive materials is provided. An optically active triol compound (5) produced by reaction of catechol (2) and optically active 3-halogeno-1,2-propanediol (3) is sulfonylated to form optically active trisulfonate (6), followed by cyclization with a base to yield optically active 1,4-benzodioxane (1).
New example of spontaneous resolution among aryl glycerol ethers: 3-(2-hydroxyphenoxy)propane-1,2-diol
作者:Zemfira A. Bredikhina、Larisa V. Konoshenko、Dmitry V. Zakharychev、Alexander V. Pashagin、Aidar T. Gubaidullin、Alexander A. Bredikhin
DOI:10.1016/j.mencom.2009.07.012
日期:2009.7
The conglomerate-forming nature of 3-(2-hydroxyphenoxy)propane-1,2-diol was established by IR, DSC, and XRD methods; racemic diol could be resolved by a moderate efficiency preferential crystallization procedure.
PROCESS FOR INDUSTRIALLY PRODUCING OPTICALLY ACTIVE 1,4-BENZODIOXANE DERIVATIVE
申请人:KANEKA CORPORATION
公开号:EP1553095A1
公开(公告)日:2005-07-13
A simple and safe method for producing optically active 1,4-benzodioxane derivatives useful as intermediates for pharmaceuticals and the like from inexpensive materials is provided.
An optically active triol compound (5) produced by reaction of catechol (2) and optically active 3-halogeno-1,2-propanediol (3) is sulfonylated to form optically active trisulfonate (6), followed by cyclization with a base to yield optically active 1,4-benzodioxane (1).