作者:V. R. Kartashov、T. N. Sokolova、Yu. K. Grishin、N. V. Malisova、N. S. Zefirov
DOI:10.1007/bf02495613
日期:1998.8
the length of the acyl substituent.syn-Addition also occurs in the acetoxymercuration ofm-chlorophenyl(methyl)acetylene and 1-methoxybut-2-yne; in the latter case, this route predominates. The stereochemistry of the reaction can also depend on the ratio of the reactants. It is proposed that the reaction occurs by several schemes in which these factors manifest themselves in different degrees.
Hg(OOCR)2(R=Et、Prn、Pri 和 Bun)与甲基苯乙炔(使用相应的酸作为溶剂)反应得到顺式和反式加合物的混合物。顺式加合物的数量随着酰基取代基长度的增加而增加。syn-加成也发生在间氯苯基(甲基)乙炔和1-甲氧基丁-2-炔的乙酰氧基汞化反应中;在后一种情况下,这条路线占主导地位。反应的立体化学还取决于反应物的比例。建议通过几种方案发生反应,其中这些因素在不同程度上表现出来。