作者:Issa Yavari、Mehdi Adib、Mohammad H. Sayahi
DOI:10.1039/b204433c
日期:2002.6.27
Dialkyl 9-chloro-3H-pyrrolo[1,2-a]indole-2,3-dicarboxylates are obtained in excellent yields from the 1 ∶ 1 ∶ 1 addition reaction between triphenylphosphine, dialkyl acetylenedicarboxylates and 3-chloroindole-2-carbaldehyde; dimethyl 9-chloro-3H-pyrrolo[1,2-a]indole-2,3-dicarboxylate is converted to dimethyl 9-oxo-9H-pyrrolo[1,2-a]indole-2,3-dicarboxylate.
通过三苯基膦、乙炔二羧酸二烷基酯和 3-氯吲哚-2-甲醛之间的 1 ∶ 1 ∶ 1 加成反应,可获得 9-氯-3H-吡咯并[1,2-a]吲哚-2,3-二羧酸二烷基酯,收率极高;9-氯-3H-吡咯并[1,2-a]吲哚-2,3-二甲酸二甲酯转化为 9-氧代-9H-吡咯并[1,2-a]吲哚-2,3-二甲酸二甲酯。