Synthesis of an azaspirane via Birch reduction alkylation prompted by suggestions from a computer program
作者:Akio Tanaka、Takashi Kawai、Tetsuhiko Takabatake、Noriko Oka、Hideho Okamoto、Malcolm Bersohn
DOI:10.1016/j.tetlet.2006.07.100
日期:2006.9
With the aid of proposals from a computer program for synthesis design, a new method of synthesizing azaspiranes has been developed. In this method, one starts with a suitable benzoic acid ester, which is subjected to Birch reduction. Then the anionic intermediate is alkylated with 1,2-dibromoethane. The product is subsequently reacted with an amine to give a spiro lactam.
借助于用于合成设计的计算机程序的建议,已经开发了合成氮杂螺烷的新方法。在这种方法中,首先从合适的苯甲酸酯开始进行桦木还原。然后将阴离子中间体用1,2-二溴乙烷烷基化。随后使产物与胺反应以得到螺内酰胺。