从不同的官能团产生羰基可以有很多方法,其中包括分子内原有羰基的位置的改变。Hassner 把这种官能的重新安置取名为“转位”(transposition),一个官能团从一个碳原子转到它邻近的碳原子上的现象称为1,2-转位。经典的羰基转位的方法是用多硫化铵的水溶液或用仲胺和硫来处理烷基芳基酮,而得到 There are many ways to generate carbonyl groups from different functional groups, including the change of the original carbonyl position in the molecule. Hassner calls this functional resettlement “transposition,” the transfer of a functional group from one carbon atom to its adjacent carbon atom as a 1,2-translocation. The classical carbonyl translocation is achieved by treating the alkylaryl ketone with an aqueous solution of ammonium polysulfide or with a secondary amine and sulfur to give