摘要:
Here we report reactions of intermediate nitrilium phosphanylid complexes, formed via reactions of a 2H-azaphosphirene complex, and 2-furanocarbonitrile, 2-thiopheno-carbonitrile or 2-cyano-1.5-dimethyl-pyrrole, and different alkynes. These examples show the dependencies of substrate selectivity and regiochemistry of this new reactive intermediate. Furthermore, we report on an unusual C-13 NMR coupling phenomena within the 2H-1,2-azaphosphole ring. (C) 2002 Elsevier Science Ltd. All rights reserved.