Transition Metal-Diene Complexes in Organic Synthesis; Part 11.¹Tricarbonyl(η⁴-1-aza-1,3-butadiene) iron Complexes as Iron Tricarbonyl Transfer Reagents: 1-Aza-1,3-butadiene-Catalyzed Transfer of the Iron Tricarbonyl Fragment and Complexation of 1,3-Dienes by Polymer-Supported Iron Tricarbonyl

Abstract

(opens in new window) Buy Article (opens in new window) Permissions and Reprints (opens in new window) All articles of this category (opens in new window) Tricarbonyliron complexes of 1-aza-1,3-butadienes are excellent transfer reagents for the complexation of 1,3-dienes. Moreover, 1-aza-1,3-butadienes catalyze the transfer of the tricarbonyliron group, e.g. in the complexation of 1,3-cyclohexadiene with nonacarbonyldiiron (yield: 98%, based on Fe). For the first time this method enables the transfer of both iron tricarbonyl fragments of nonacarbonyldiiron to the diene. Fixation of the 1-aza-1,3-diene on a solid support provides a heterogeneous catalyst for the complexation of 1,3-dienes which can be recycled.