Reaction of various types of alcohols with a novel type of acylating agent, the isopropenyl esters 2a–e in the presence of a catalytic amount of conc. sulfuric acid or toluene-p-sulfonic acid followed by selective deprotection of the terminal ester gives the monoesters 5a–i in good yields.
各种类型的醇与新型酰基化剂异
丙烯酯2a-e在催化量的浓
硫酸或
对甲苯磺酸存在下反应,随后选择性地脱除末端酯,可以高产率得到单酯5a-i。