分子中原子或者基团的迁移究竟属于重排还是互变异构,在处理具体反应时,一些有机化学教材和参考书说法并不完全一致。例如,有些书把炔烃水合中经烯醇式转变为羰基化合物的一步叫做重排,另外一些书称它为互变异构,还有一些书说是异构化。重排和互变异构之间到底有什么异同,两个概念能否互相袭用,笔者就此谈点肤浅的看法。分子内的原子或者基团发生迁移,从而导致结构变化是分子重排和互变异构的特征。广义上说,互变异构是一类特殊形式的 Whether the migration of atoms or groups in a molecule belongs to rearrangement or tautomerization, some organic chemistry textbooks and reference books are not exactly the same in handling specific reactions. For example, some books refer to the rearrangement of enol hydrolysates as enol-type to carbonyl compounds, others as tautomerism, and others as isomerism. What are the similarities and differences between the rearrangement and the tautomerism, whether the two concepts can use each other, I talk about the superficial view. The migration of atoms or groups within a molecule results in structural changes that characterize molecular rearrangement and tautomerism. Broadly speaking, tautomerism is a special kind of form