title: Ring enlargement reaction of C,N-cyclic-N'-acyl azomethine imines with sulfonium ylide: an efficient synthesis of 3-benzazepine derivatives.
abstract: Highly efficient formation of 3-benzazepine derivatives has been achieved, based on the ring expansion reaction of C,N-cyclic-N'-acyl azomethine imines with sulfonium ylide generated in situ from the corresponding sulfonium salt. The reactions proceeded smoothly to afford the tricyclic 3-benzazepine derivatives in good to high yields. A wide range of C,N-cyclic N'-acyl azomethine imines were applicable to this reaction.
authors.affiliation: Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University , Kakuma, Kanazawa 920-1192, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Soeta
authors.forename: Takahiro
authors.initials: T
authors.lastname: Ohgai
authors.forename: Takahiro
authors.initials: T
authors.lastname: Sakai
authors.forename: Shuhei
authors.initials: S
authors.lastname: Fujinami
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Ukaji