Ni-catalyzed nucleophilic conjugate additions of Grignard and organozincate reagents to substituted 4-vinylpyridines. General synthesis of phosphodiesterase IV inhibitors
作者:Ioannis N. Houpis、Jaemoon Lee、Ilias Dorziotis、Audrey Molina、Bob Reamer、R.P. Volante、Paul J. Reider
DOI:10.1016/s0040-4020(97)10217-4
日期:1998.2
Alkyl, aryl, and vinyl Grignard reagents were added to olefin II under Ni(acac)(2) or Cl2Ni(PPh3)(2) catalysis to give products with the general formula I in 74-95% yield. Organozincates gave similar results with Ni(acac), as the catalyst, (C) 1998 Elsevier Science Ltd. All rights reserved.