New homogeneously and heterogeneously [Pd/Cu]-catalysed C3-alkenylation of free NH-indoles
作者:Laurent Djakovitch、Pascal Rouge
DOI:10.1016/j.molcata.2007.04.011
日期:2007.8
A new palladium/copper catalytic procedure for the C-3-alkenylation of free NH-indoles is reported. Using homogeneous or heterogeneous hetero-bimetallic [Pd/Cu] -catalysts under mild reaction conditions (10 mol% Pd-catalyst and 10 mol% Cu-catalyst, 70 degrees C, air), substituted indoles are fully (58-82% isolated yields) and selectively (75-100% selectivity) converted to the expected 2-substituted-3-vinyl indoles. (C) 2007 Elsevier B.V. All rights reserved.
Kong, Pi-Chang; Rochon, F. D., Canadian Journal of Chemistry, 1981, vol. 59, p. 3293 - 3296