A facile and divergent synthesis of 2,3-dihydro-1H-pyrroles, 3-alkyl-1H-pyrroles and 3-alkenyl-1H-pyrroles has been developed via a formal [2 + 3] annulation of 2,4-penta-dienenitriles and ethyl isocyanoacetate by the variation of reaction conditions.
通过改变反应条件,利用2,4-戊二烯腈和乙酰氨基乙酸乙酯的正式[2+3]环化反应,开发了一种简便且多样的2,3-二氢-1H-吡咯、3-烷基-1H-吡咯和3-烯基-1H-吡咯的合成方法。