A known base-induced catalytic ketoform synthesis can now be carried out without sacrificing the directivity of the prior art process, but non-catalytically, that is, in the absence of the phase transfer catalyst heretofore required, provided the ketone/araldehyde is present in large excess from about 2 to about 25 times the calculated molar amount necessary to yield the reaction product. This synthesis obviates the problems of separating and recovering a phase transfer catalyst used in the prior art process.
现在可以进行已知的碱诱导催化
酮醛合成,而不牺牲现有技术工艺的直接性,但不需要
催化剂,也就是说,在没有以前所需的相转移
催化剂的情况下,只要
酮/醛大量过量存在,过量量约为生成反应产物所需的计算摩尔量的 2 至 25 倍。这种合成方法避免了分离和回收现有工艺中使用的相转移
催化剂的问题。