1011718-05-0Relevant articles and documents
Nickel/BPh3-catalyzed alkynylcyanation of alkynes and 1,2-dienes: An efficient route to highly functionalized conjugated enynes
Nakao, Yoshiaki,Hirata, Yasuhiro,Tanaka, Masaaki,Hiyama, Tamejiro
, p. 385 - 387 (2008)
(Chemical Equation Presented) Adding across: A C(sp)-C(sp) bond of alkynyl cyanides is activated by nickel/Lewis acid catalysis derived from [Ni(cod) 2] and BPh3, and the alkynylcyanation reaction of alkynes and 1,2-dienes is achieve
Alkynylcyanation of alkynes and dienes catalyzed by nickel
Hirata, Yasuhiro,Tanaka, Masaaki,Yada, Akira,Nakao, Yoshiaki,Hiyama, Tamejiro
experimental part, p. 5037 - 5050 (2009/11/30)
Alkynyl cyanides are found to add across alkynes and 1,2-dienes in the presence of a catalyst prepared in situ from Ni(cod)2, xantphos, and BPh3. A range of functionalized conjugated cis-enynes are obtained with high regioselectivity. The addition reaction across norbornadiene proceeds in the absence of BPh3 to give exo-cis adduct exclusively. A stoichiometric reaction of an alkynyl cyanide, Ni(cod)2, xantphos, and BPh3 gives trans-(xantphos)Ni(CNBPh3)(C{triple bond, long}CSiMe2t-Bu), which is suggested to be a plausible reaction intermediate of the alkynylcyanation reaction.