A Practical Preparation of Highly Versatile N-Acylpyrroles from 2,4,4-Trimethoxybutan-1-amine
Tomoaki Maehara, Rentaro Kanno, Satoshi Yokoshima and Tohru Fukuyama*
*Graduate School of Pharmaceutical Sciences, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, Email: fukuyamamol.f.u-tokyo.ac.jp
T. Maehara, R. Kanno, S. Yokoshima, T. Fukuyama, Org. Lett., 2012, 14, 1946-1948.
DOI: 10.1021/ol3005613 (free Supporting Information)
A method for the preparation of N-acylpyrroles involves condensation of carboxylic acids with 2,4,4-trimethoxybutan-1-amine, followed by acid-mediated cyclization to form the pyrrole ring. The preparative procedure is highly tolerant of various functional groups.
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