A three-component sequential process consisting in (1) in situ formation of carbodiimides by Staudinger reaction, (2) reaction with 2-(bromomethyl)-3-aryl-2-propenoic acids, and (3) final cyclization of the resulting N-acylurea intermediates in order to obtain the synthesis of an array of N,N′-disubstituted 5-arylidenedihydropyrimidine-2,4-dione under mild conditions is presented.
一种三组分顺序过程,包括:(1)通过Staudinger反应原位形成碳二
亚胺,(2)与2-(
溴甲基)-3-芳基-2-
丙酸反应,以及(3)最终环化生成的N提出了在温和条件下合成一系列N,N′-二取代的5-芳基二氢
嘧啶-2,4-二酮的α-酰基
脲中间体。