三辛胺 、 二乙二醇二甲醚 在
二乙二醇二甲醚 、 三辛胺 、 crude product 作用下,
以to give 1.75 g of (S)-2-hydroxymethyl-8-allyl-1,4-benzodioxane (1-7) (R22 is allyl, and R3, R42 and R5 are H) as a colorless oil的产率得到(S)-2-hydroxymethyl-8-allyl-1,4-benzodioxane
参考文献:
名称:
Process for producing 1,4-benzodioxane derivatives
PROCESS FOR PRODUCING 1,4-BENZODIOXANE DERIVATIVES
申请人:DAISO CO., LTD.
公开号:EP0928791A1
公开(公告)日:1999-07-14
An industrial method for preparation of a 1,4-benzodioxane derivative (1), which comprises reacting a diol compound (2) with a carbonating agent to prepare a carbonate compound (3) and after removal of the protective group, cyclizing it by heating or by treating with a base or a fluoride salt.