摘要:
Reaction of PhCH2Mn(CO)(5) with 1,4-di-aryl-1-aza-1,3-butadienes gave substituted pyrrolinonyl rings which Were eta(4)-coordinated to a Mn(CO)(3) group. These are formed by intramolecular CO insertion into a (non-isolated) cyclomanganated intermediate, followed by cyclisation. Other unsaturated reagents (PhC drop CH, CH2 = CHCOOMe, PhNCO) gave products arising from insertion of these, including a structurally characterised tri-aryl-eta(5)-azacyclohexadienyl-Mn(CO)(3) complex from the reaction with the alkyne. (C) 2004 Elsevier B.V. All rights reserved.