title: Novel metal-free hydrogenation of the carbon-carbon double bond in azulenoid enones by use of cycloheptatriene and protic acid.
abstract: [reaction: see text] An efficient method for the hydrogenation of the carbon-carbon double bond in azulenoid and aromatic fused azulenoid enones without the use of hydrogen and a metal catalyst is reported. Treatment of a variety of azulenoid enones with cycloheptatriene and a protic acid in acetonitrile gave the corresponding beta-azulenyl ketone derivatives in excellent to moderate yield. In this reaction, cycloheptatriene acts as a hydride donor.
authors.affiliation: Graduate School of Science and Technology, Kobe University, Nada, Japan.
authors.forename: Takatomo
authors.initials: T
authors.lastname: Kimura
authors.forename: Tohru
authors.initials: T
authors.lastname: Takahashi
authors.forename: Mitsuko
authors.initials: M
authors.lastname: Nishiura
authors.forename: Kimiaki
authors.initials: K
authors.lastname: Yamamura