title: Design and Applications of N-tert-Butyl Sulfinyl Squaramide Catalysts.
abstract: A new chiral HBD system, N-tert-butyl sulfinyl squaramide, was designed and synthesized. The core N-tert-butyl sulfinyl squaramide with an 1-aminoindan-2-ol skeleton was found to be an efficient catalyst in the enantioselective Friedel-Crafts alkylation of indoles and acyl phosphonates.
authors.affiliation: State key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States.
authors.forename: Cyndi Qixin
authors.initials: CQ
authors.lastname: He
authors.affiliation: State key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Fei-Xiang
authors.initials: FX
authors.lastname: Gao
authors.affiliation: State key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Li
authors.affiliation: State key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Xiao-Song
authors.identifier: 0000-0003-4541-8702
authors.initials: XS
authors.lastname: Xue
authors.affiliation: State key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Xin
authors.identifier: 0000-0001-6020-9170
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States.
authors.forename: K N
authors.identifier: 0000-0002-8387-5261
authors.initials: KN
authors.lastname: Houk
authors.affiliation: State key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University , Tianjin 300071, China.
authors.forename: Jin-Pei
authors.identifier: 0000-0001-8822-1577
authors.initials: JP
authors.lastname: Cheng