Pyrrole Syntheses Based on Titanium-Catalyzed Hydroamination of Diynes
作者:Balasubramanian Ramanathan、Adam J. Keith、Douglas Armstrong、Aaron L. Odom
DOI:10.1021/ol0489088
日期:2004.8.1
Titanium-catalyzed hydroamination of 1,4- and 1,5-diynes by primary amines leads to imino-alkynes that undergo in situ 5-endo dig and 5-exo dig cyclization reactions, respectively. The products are 1,2,5-trisubsituted pyrroles accessed directly from readily available diyne starting materials.
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