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Volumn , Issue 2, 2008, Pages 242-246

Stereoselective synthesis of new oxa-cages via alkyl radical cyclization to vinylogous carbonates

Author keywords

Diels Alder adducts; Oxa cages; Radical cyclization; Vinylogous carbonates

Indexed keywords

CARBONIC ACID DERIVATIVE; DIOXA COMPOUND; HETEROCYCLIC COMPOUND; UNCLASSIFIED DRUG;

EID: 38849209872     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-1000847     Document Type: Article
Times cited : (24)

References (56)
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    • For some recent examples, see: (a) James, B.; Suresh, E.; Nair, M. S. Synlett 2006, 3479.
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    • James, B.1    Suresh, E.2    Nair, M.S.3
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    • For some selected examples, see: a
    • For some selected examples, see: (a) Lee, E. Pure Appl. Chem. 2005, 77, 2073.
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    • and references therein
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    • Evans, P.A.1    Roseman, J.D.2
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    • 38849122241 scopus 로고    scopus 로고
    • All the compounds exhibited spectral data consistent with their structures. Melting point, IR, NMR (1H and 13C) and HRMS spectral data for some of the compounds are as follows: Oxa-cage 7a: IR (neat, 2940, 2871, 1730, 1459, 1382, 1309, 1288, 1245, 1173, 1144, 1110, 1096, 1078, 1070, 1032, 1018, 980, 911, 764 cm-1. 1H NMR (400 MHz, CDCl3, δ, 4.35 (dd, J, 7.9, 4.7 Hz, 1 H, 4.17-4.08 (m, 2 H, 4.04 (d, J, 11.9 Hz, 1 H, 3.99 (d, J, 8.0 Hz, 1 H, 3.91 (ddd, J, 7.5, 5.6, 1.9 Hz, 1 H, 3.70-3.65 (m, 2 H, 2.92 (ABX, J, 15.7, 7.8 Hz, 1 H, 2.66-2.62 (m, 1 H, 2.63 (ABX, J, 15.7, 5.6 Hz, 1 H, 2.38 (dt, J, 10.2, 4.4 Hz, 1 H, 1.92-1.85 (m, 2 H, 1.56 (ddd, J, 7.8, 5.2, 2.5 Hz, 1 H, 1.47 (AB, J, 10.6 Hz, 1 H, 1.32 (AB, J, 10.6 Hz, 1 H, 1.24 (t, J, 7.2 Hz, 3 H, 13C NMR (100 MHz, CDCl3, DEPT, δ, 172.39 C
    • 2).
  • 56
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    • 7; unit cell parameters: a = 29.6325(10), b = 5.9688(2), c = 21.6208(8), β = 121.391(3), space group: C(2)/c; CCDC number 652178. CCDC 652177 and CCDC 652178 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
    • 7; unit cell parameters: a = 29.6325(10), b = 5.9688(2), c = 21.6208(8), β = 121.391(3), space group: C(2)/c; CCDC number 652178. CCDC 652177 and CCDC 652178 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.