title: Base-Catalyzed Hydrophosphination of Azobenzenes with Diarylphosphine Oxides: A Precise Construction of N-N-P Unit.
abstract: Addition of diarylphosphine oxides to the N═N double bond of azobenzenes leads to the formation of the P-substituted hydrazines in up to 98% yield for 24 examples, and the formation of diphenylphosphinic amides was observed in three substrates. This strategy features tolerance of a wide range of functional groups, simple operation, and mild reaction conditions. Specially, this method can be also applied to the gram-scale synthesis of the product. A polar reaction mechanism is also proposed based on control experiments.
authors.affiliation: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Hong
authors.affiliation: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China.
authors.forename: Chen
authors.initials: C
authors.lastname: Hu
authors.affiliation: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China.
authors.forename: Alfred Njasotapher
authors.initials: AN
authors.lastname: Aruma
authors.affiliation: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China.
authors.forename: Shengying
authors.initials: S
authors.lastname: Wu
authors.affiliation: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China.
authors.forename: Limin
authors.initials: L
authors.lastname: Wang