title: Silver(I)-Catalyzed Tandem Sigamatropic Rearrangement/1,3-H Shift/6π Aza-electrocyclization of N-Propargylic Hydrazones: A Mild Synthetic Route to 1,6-Dihydropyridazines.
abstract: A highly efficient AgOTf catalyzed [3,3] sigmatropic rearrangement/1,3-H shift/6π aza-electrocyclization cascade reaction of N-propargylic hydrazones has been developed. This method provides a new mild synthetic route to various polysubstituted 1,6-dihydropyridazines including the 3-CF3-substituted ones with high selectivity.
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Zong-Cang
authors.initials: ZC
authors.lastname: Ding
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Lu-Chuan
authors.initials: LC
authors.lastname: Ju
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: An
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Yun-Bing
authors.initials: YB
authors.lastname: Zhou
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Ren-Hao
authors.initials: RH
authors.lastname: Li
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Hai-Tao
authors.initials: HT
authors.lastname: Tang
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Cheng-Ke
authors.initials: CK
authors.lastname: Ding
authors.affiliation: Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, Fujian, P. R. China.
authors.forename: Zhuang-Ping
authors.initials: ZP
authors.lastname: Zhan