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Volumn 7, Issue 12, 2016, Pages 6919-6927

Non-bonding 1,5-S⋯O interactions govern chemo- and enantioselectivity in isothiourea-catalyzed annulations of benzazoles

Author keywords

[No Author keywords available]

Indexed keywords

ESTERS; THIOUREAS;

EID: 84995687647     PISSN: 20416520     EISSN: 20416539     Source Type: Journal    
DOI: 10.1039/c6sc00940a     Document Type: Article
Times cited : (120)

References (88)
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    • For selected recent examples, see
    • For selected recent examples, see:
  • 20
    • 84995652181 scopus 로고    scopus 로고
    • For seminal work on isothiourea catalysis see
    • For seminal work on isothiourea catalysis see:
  • 27
    • 84995689599 scopus 로고    scopus 로고
    • For recent reviews, see
    • . For recent reviews, see:
  • 30
    • 84995623119 scopus 로고    scopus 로고
    • For selected examples see
    • For selected examples see
  • 36
    • 84995652200 scopus 로고    scopus 로고
    • for other examples of related work using α,β-unsaturated acyl ammonium intermediates, see
    • ; for other examples of related work using α,β-unsaturated acyl ammonium intermediates, see:
  • 43
    • 84995692198 scopus 로고    scopus 로고
    • For a recent review of related work using α,β-unsaturated acyl azolium intermediates, see
    • For a recent review of related work using α,β-unsaturated acyl azolium intermediates, see:
  • 48
    • 84995671975 scopus 로고    scopus 로고
    • For the initial postulate of 1,5-S⋯O interactions as a control element in isothiourea catalysis see
    • For the initial postulate of 1,5-S⋯O interactions as a control element in isothiourea catalysis see
  • 50
    • 84995542152 scopus 로고    scopus 로고
    • For other manuscripts of interest see
    • . For other manuscripts of interest see
  • 53
    • 84995623103 scopus 로고    scopus 로고
    • C-H interactions disfavor alternative conformations with an O-C-N-C dihedral angle of 180°. See ref. 13b
    • C-H interactions disfavor alternative conformations with an O-C-N-C dihedral angle of 180°. See ref. 13b
  • 54
    • 84995702403 scopus 로고    scopus 로고
    • See leading publications in ref. 12 and 13 and the following for a selection of discussions
    • See leading publications in ref. 12 and 13 and the following for a selection of discussions:
  • 60
    • 84995623166 scopus 로고    scopus 로고
    • For selected reviews, see
    • For selected reviews, see:
  • 63
    • 84995692214 scopus 로고    scopus 로고
    • The absolute configurations of all products are based upon previous reports of annulations using α,β-unsaturated acyl ammonium intermediates (see ref. 10 and 11)
    • The absolute configurations of all products are based upon previous reports of annulations using α,β-unsaturated acyl ammonium intermediates (see ref. 10 and 11)
  • 64
    • 84995542150 scopus 로고    scopus 로고
    • −1. See ESI for further details
    • −1. See ESI for further details
  • 65
    • 84995630885 scopus 로고    scopus 로고
    • The corresponding acid (E : Z ratio 89 : 11) was prepared following a literature procedure
    • The corresponding acid (E : Z ratio 89 : 11) was prepared following a literature procedure (
  • 67
    • 84995542158 scopus 로고    scopus 로고
    • The anhydride was prepared from this mixture, presumably as a statistical ratio of stereoisomers, and used without purification (see ESI for further information)
    • ). The anhydride was prepared from this mixture, presumably as a statistical ratio of stereoisomers, and used without purification (see ESI for further information)
  • 72
    • 84995542139 scopus 로고    scopus 로고
    • See ESI for full authorship of Gaussian09
    • See ESI for full authorship of Gaussian09:
  • 73
    • 84930624784 scopus 로고    scopus 로고
    • et al.
    • Gaussian, Inc. Wallingford, CT
    • M. J. Frisch, et al., Gaussian 09, Gaussian, Inc.: Wallingford, CT, 2009
    • (2009) Gaussian 09
    • Frisch, M.J.1
  • 76
    • 84995671985 scopus 로고    scopus 로고
    • See ESI for reaction coordinates, intermediate and transition structures, model systems, and energetics
    • See ESI for reaction coordinates, intermediate and transition structures, model systems, and energetics
  • 78
    • 84995542142 scopus 로고    scopus 로고
    • −1
    • −1
  • 88


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.