title: C[double bond, length as m-dash]N bond formation via palladium-catalyzed carbene insertion into N[double bond, length as m-dash]N bonds: inhibiting the general 1,2-migration process of ylide intermediates.
abstract: A new example of C[double bond, length as m-dash]N double bond formation in metal carbene insertion reactions is reported. Remarkably, the general 1,2-migration process of the corresponding ylide intermediates in X-H carbene insertion reactions that leads to C-X single bond formation is completely inhibited by replacing the H atom with a nitrogen atom. This palladium-catalyzed carbene insertion reaction with N[double bond, length as m-dash]N double bonds gave various N,N-disubstituted hydrazone products in high yields.
authors.affiliation: Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. cewuwq@scut.edu.cn jianghf@scut.edu.cn.
authors.forename: Chuanle
authors.initials: C
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. cewuwq@scut.edu.cn jianghf@scut.edu.cn.
authors.forename: Pengquan
authors.initials: P
authors.lastname: Chen
authors.affiliation: Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. cewuwq@scut.edu.cn jianghf@scut.edu.cn.
authors.forename: Rui
authors.initials: R
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. cewuwq@scut.edu.cn jianghf@scut.edu.cn.
authors.forename: Zhiming
authors.initials: Z
authors.lastname: Lin
authors.affiliation: Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. cewuwq@scut.edu.cn jianghf@scut.edu.cn.
authors.forename: Wanqing
authors.initials: W
authors.lastname: Wu
authors.affiliation: Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. cewuwq@scut.edu.cn jianghf@scut.edu.cn.
authors.forename: Huanfeng
authors.identifier: http://orcid.org/0000-0002-4355-0294
authors.initials: H
authors.lastname: Jiang