在
air 、 silica gel 作用下,
以
乙酸乙酯 为溶剂,
反应 5.0h,
以0.030 g的产率得到5-phenyl-3-hydroxy-1H-pyrrole-2-carboxylic acid methyl ester
参考文献:
名称:
Synthesis of polysubstituted pyrroles from sulfinimines (N-sulfinyl imines)
摘要:
Polysubstituted 2-carboxylate and 2-phosphonate pyrroles are prepared by aromatization of the corresponding 3-oxo 2-carboxylate and 2-phosphonate NH-pyrrolidines using air. Reaction of electrophiles with 3-oxo pyrrolidine dianions readily introduces substituents, regioselectively at C-4 in these pyrrolidines. (c) 2008 Elsevier Ltd. All rights reserved.