title: Synthesis of 2,3-dihydro-1H-indazoles by Rh(III)-catalyzed C-H cleavage of arylhydrazines.
abstract: A rhodium-catalyzed efficient method for the synthesis of 2,3-dihydro-1H-indazoles is described. The reaction of arylhydrazines with olefins results in the corresponding 2,3-dihydro 1H-indazoles with exclusive regioselectivity via C-H bond activation. The utility of the methodology is illustrated by a rapid synthesis of 1H-indazoles under mild reaction conditions in half an hour.
authors: Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China. liuzhanx@zju.edu.cn yhzhang@zju.edu.cn.
authors: Jinzhong
authors: J
authors: Yao
authors: Ruokun
authors: R
authors: Feng
authors: Cong
authors: C
authors: Lin
authors: Zhanxiang
authors: Z
authors: Liu
authors: Yuhong
authors: Y
authors: Zhang
mesh_terms: D000475:Alkenes / Q000737:chemistry; D002384:Catalysis; D006834:Hydrazines / Q000138:chemical synthesis* / Q000737:chemistry; D007191:Indazoles / Q000138:chemical synthesis* / Q000737:chemistry; D012238:Rhodium / Q000737:chemistry*
chemical_list: D000475:Alkenes; D006834:Hydrazines; D007191:Indazoles; D012238:Rhodium