申请人:Merck & Co., Inc.
公开号:US05523477A1
公开(公告)日:1996-06-04
The present invention provides a novel process for the preparation of 1,1-cyclopropanedimethanol cyclic sulfite which comprises: (a) contacting 1,1-cyclopropanedimethanol with dialkylsulfite in the presence of a base; and (b) removing from the reaction mixture the alcohol reaction by-product. This process is incorporated in the additional novel processes for preparing 1-(hydroxymethyl)cyclopropaneacetonitrile and 1-(thiomethyl)cyclopropaneacetic acid.
本发明提供了一种新型的1,1-环丙基二甲醇环磺酸酯的制备方法,包括:(a)将1,1-环丙基二甲醇与二烷基磺酸酯在碱的存在下接触;(b)从反应混合物中去除醇反应副产物。该方法被应用于另外两种新型的制备1-(羟甲基)环丙基乙腈和1-(硫甲基)环丙基乙酸的方法中。