The first Suzuki-Miyaura reactions of 2,3,5-tribromo-N-methylpyrrole are reported. These reactions proceed with very good site-selectivity in favour of position 5 which is more reactive than position 2, due to steric reasons. The second attack occurs at position 2 which is more electron deficient than position 3. (C) 2011 Elsevier Ltd. All rights reserved.
Bromination and chlorination of pyrrole and some reactive 1-substituted pyrroles
作者:H. M. Gilow、D. Edward Burton
DOI:10.1021/jo00324a005
日期:1981.5
GILOW H. M.; BURTON D. E., J. ORG. CHEM., 1981, 46, NO 11, 2221-2225