Synthesis of diverse phenylglycine derivatives via transformation of Ugi four-component condensation primary adducts
作者:Stefano Marcaccini、Gloria Menchi、Andrea Trabocchi
DOI:10.1016/j.tetlet.2011.03.074
日期:2011.5
3-(N-Substituted)amino-4-arylamino-1H-isochromenones (isocoumarins) which can be regarded as the enediamine tautomers of the Ugi four-component condensation primary adducts between 2-formylbenzoic acids, arylamines, and isocyanides undergo a facile ring cleavage with amines to give a series of phenylglycine derivatives. Thus, a synthetically useful post-condensation transformation of Ugi four-component
3-(N-取代的)氨基-4-芳基氨基-1 H-异色酮(异香豆素)可以被视为Ugi四甲酰苯甲酸,芳基胺和异氰酸酯之间的四组分缩合伯加合物的烯二胺互变异构体用胺进行环裂解,得到一系列苯基甘氨酸衍生物。因此,首次描述了Ugi四组分缩合初级加合物的合成有用的缩合后转化。