Electrophilic substitutions of olefinic hydrogens : Acylation of1,1-bisalkylthio 1,3-alkadienes and trans-n-acetyl-n-isopropyl-1-amino-1,3-butadiene
作者:Masaru Hojo、Ryōichi Masuda、Etsuji Okada
DOI:10.1016/s0040-4039(00)84017-4
日期:1986.1
Reactions of the title compounds with trifluoroacetic anhydride and trichloroacetyl chloride occurred regioselectively to give corresponding 4-triholoacetylated compounds in excellent yields. In contrast, 1,1-bisethylthio-1,3-hexadiene gave preferentially 2-acylated compounds.
标题化合物与三氟乙酸酐和三氯乙酰氯的反应区域选择性地发生,以优异的产率得到相应的4-三氟乙酰化的化合物。相反,1,1-双乙硫基-1,3-己二烯优先产生2-酰化的化合物。