Highly diasteroselective and remarkably π-facially selective lewis acid-catalysed diels-alder cycloaddition reactions: Access to novel 1,3,4-trisubstituted 2-azetidinones

European Journal of Organic Chemistry

Volumn , Issue 11, 2005, Pages 2397-2405

  Bhargava, Gaurav ^a   Mahajan, Mohinder P ^a   Saito, Takao ^b   Otani, Takashi ^b   Kurashima, Mai ^b   Sakai, Ken ^b  

^a GURU NANAK DEV UNIVERSITY   (India)

^b TOKYO UNIVERSITY OF SCIENCE   (Japan)

Author keywords

Lactams; Facial selectivity; Diastereoselectivity; Diels Alder reactions; Dienyl lactams; Lewis acids

Indexed keywords

EID: 20444449182     PISSN: 1434193X     EISSN: None     Source Type: Journal    
DOI: 10.1002/ejoc.200500013     Document Type: Article

References (17)

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16. -1, T = 296(2) K, λ= 0.71073 Å, R1 = 0.0538 for I > 2.0σ(I), wR2 = 0.1704 for all data (2859 reflections), GOF = 1.148 (311 parameters). Diffraction data were measured on a Bruker APEX CCD-Detector X-ray diffractometer. Structure solution, refinement were carried out with Shelx-97.
17. -1, T = 100(2) K, λ= 0.71073 Å, R1 = 0.0403 for I > 2.0σ(I), wR2 = 0. 1011 for all data (4397 reflections), GOF = 1.027 (307 parameters).