Intra- and Intermolecular Allene–Alkyne Coupling Reactions by the Use of Fe(CO)<sub>4</sub>(NMe<sub>3</sub>)
作者:Takanori Shibata、Yuji Koga、Koichi Narasaka
DOI:10.1246/bcsj.68.911
日期:1995.3
Intramolecular allene–alkyne couplingreactions proceed in the presence of Fe(CO)4(NMe3) under photoirradiation conditions to provide various bicyclic dienones through η3-allyl ironcomplexes. Various 4-methylene-2-cyclopenten-1-ones could be prepared by intermolecular allene–alkyne couplingreaction under the same reaction conditions.
Conversion of 1-(ω-Alkynyl)-1,2-propadienyl Sulfides to Bicyclic Dienones by the Use of Iron Carbonyl Complex
作者:Koichi Narasaka、Takanori Shibata
DOI:10.1246/cl.1994.315
日期:1994.2
Fe(CO)4(NMe3) under photo irradiation conditions and a cyclized and carbonylated η3-allyl mononuclear ironcomplex is isolated. On the other hand, the reaction of 1-(ω-alkynyl)-1,2-propadienyl sulfides and Fe(CO)4(NMe3) also proceeds by photo irradiation to give various bicyclic dienones through the η3-allyl ironcomplex.