title: An Upstream By-product from Ester Activation via NHC-Catalysis Catalyzes Downstream Sulfonyl Migration Reaction.
abstract: A sequential reaction combining N-heterocyclic carbene (NHC) and N-hydroxyphthalimide (NHPI) catalysis allowed for the upstream by-product NHPI, which was generated in the NHC-catalyzed cycloaddition reaction, to act as the catalyst for a downstream nitrogen-to-carbon sulfonyl migration reaction. Enantiomeric excess of the major product in the cycloaddition reaction remained intact in the follow-up sulfonyl migration reaction.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P.R. China.
authors.forename: Runfeng
authors.initials: R
authors.lastname: Han
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P.R. China.
authors.forename: Liwenze
authors.initials: L
authors.lastname: He
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P.R. China.
authors.forename: Lin
authors.initials: L
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P.R. China.
authors.forename: Xingang
authors.initials: X
authors.lastname: Xie
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P.R. China. shexg@lzu.edu.cn.|Collaborative Innovation Centre of Chemical Science and Engineering, Tianjin, 300071, P.R. China. shexg@lzu.edu.cn.
authors.forename: Xuegong
authors.initials: X
authors.lastname: She
keywords: N-heterocyclic carbenes; N-hydroxyphthalimide; ester activation; radicals; sulfonyl migration