作者:B.S. Balaji、Bhanu M. Chanda
DOI:10.1016/s0040-4020(98)00804-7
日期:1998.10
Simple and high yielding syntheses of several β-keto esters, catalysed by zeolite Hβ are reported. The methods developed include condensation of aldehydes with ethyl diazoacetate and transesterification of β-keto esters with primary, secondary, allylic and benzylic alcohols etc., all catalysed by Hβ. It was further observed that under microwave irradiation the yields of many aromatic β-keto esters
报道了由沸石Hβ催化的几种β-酮酯的简单和高产率的合成。所开发的方法包括醛与重氮乙酸乙酯的缩合以及β-酮酯与伯,仲,烯丙基和苄基醇等的酯交换反应,所有这些反应均由Hβ催化。进一步观察到,在微波辐射下,许多芳族β-酮酯的产率明显提高。