1. A Novel Cu-Assisted Cycloisomerization of Alkynyl Imines: Efficient Synthesis of Pyrroles and Pyrrole-Containing Heterocycles
Alexander V. Kel'in, Anna W. Sromek, and Vladimir Gevorgyan
J. Am. Chem. Soc., 2001, 123 (9), pp 2074–2075
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http://dx.doi.org/10.1021/ja0058684Daniel A. Black and Bruce A. Arndtsen
Org. Lett., 2004, 6 (7), pp 1107–1110
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http://dx.doi.org/10.1021/ol036462+