申请人:International Flavors & Fragrances Inc.
公开号:US04205186A1
公开(公告)日:1980-05-27
A process is described for the preparation of substituted oxyacetaldehydes and acetals thereof according to the reaction sequence: ##STR1## wherein R.sub.1 and R.sub.2 are each lower alkyl or R.sub.1 and R.sub.2, taken together form a lower alkylene group; wherein R.sub.3 is alkyl, alkenyl or alkadienyl and X is halogen selected from the group consisting of chlorine and bromine, the reaction (i) being carried out (1) using a "phase transfer agent" and (2) in a two phase system.
描述了一种制备取代氧代乙醛和其缩醛的方法,根据以下反应顺序:其中R.sub.1和R.sub.2分别是较低的烷基或R.sub.1和R.sub.2共同形成一个较低的烷基烯基基团;其中R.sub.3是烷基、烯基或烷二烯基,X是从氯和溴组成的卤素中选择的,反应(i)在一个两相系统中进行,使用“相转移剂”进行。