Synthesis and asymmetric hydrogenation of 3,5-dioxoheptanedioates. Preparation of enantiomerically pure substituted δ-valerolactones
作者:Jarosław Kiegiel、Julita Jóźwik、Krzysztof Woźniak、Janusz Jurczak
DOI:10.1016/s0040-4039(00)00747-4
日期:2000.6
The synthesis of 3,5-dioxoheptanedioic acid derivatives based on the reaction of ketene with malonyl chloride was developed. Resulting diketones were subjected to Ru–(S)-BINAP-catalyzed asymmetric hydrogenation. The products were transformed into enantiomerically pure 3,5-substituted-δ-valerolactones.
开发了基于烯酮与丙二酰氯反应的3,5-二氧杂庚二酸衍生物的合成方法。生成的二酮经过Ru–(S)-BINAP催化的不对称氢化反应。将产物转化为对映体纯的3,5-取代的-δ-戊内酯。