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Volumn , Issue 6, 2006, Pages 1468-1475

New cyclization mode of [N-(diarylmethyleneamino)carbonimidoyl]ketenes: Synthesis of 9H-pyrazolo[3,2-b][1,3]benzoxazines

Author keywords

1H Pyrrole 2,3 diones; 9H Pyrazolo 3,2 b 1,3 benzoxazines; Ab initio and density functional calculations; Imidoyl ketenes; Thermolysis

Indexed keywords


EID: 33645051700     PISSN: 1434193X     EISSN: 10990690     Source Type: Journal    
DOI: 10.1002/ejoc.200500768     Document Type: Article
Times cited : (9)

References (66)
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    • c) T. T. Tidwell, Ketene, Wiley, New York, 1995, p. 254.
    • (1995) Ketene , pp. 254
    • Tidwell, T.T.1
  • 45
    • 33748960439 scopus 로고
    • An analogous electrocyclization process, the 6π-electron ring closure of pentadienyl anion into cyclopentenyl anion, is disrotatory, as would be expected for a normal pericyclic 6π-electron ring closure, see: K. N. Houk, Y. Li, J. D. Evanseck, Angew. Chem. Int. Ed. Engl. 1992, 31, 682-708.
    • (1992) Angew. Chem. Int. Ed. Engl. , vol.31 , pp. 682-708
    • Houk, K.N.1    Li, Y.2    Evanseck, J.D.3
  • 47
    • 0033556194 scopus 로고    scopus 로고
    • For reports on pseudopericyclic reactions see, for example, Ref. 2a and: a) D. M. Birney, X. Xu, S. Ham, Angew. Chem. Int. Ed. 1999, 38, 189-193;
    • (1999) Angew. Chem. Int. Ed. , vol.38 , pp. 189-193
    • Birney, D.M.1    Xu, X.2    Ham, S.3
  • 54
    • 33645092024 scopus 로고    scopus 로고
    • note
    • A referee has reasonably pointed out that this [1,3]-Cl shift may occur in a stepwise manner, via the corresponding ion pair.
  • 58
    • 0001192473 scopus 로고    scopus 로고
    • (Eds.: K. B. Lipkowitz, D. B. Boyds), VCH Publishers, New York
    • b) L. J. Bartolotti, K. Fluchichk, in: Reviews in Computational Chemistry (Eds.: K. B. Lipkowitz, D. B. Boyds), VCH Publishers, New York, 1996, vol. 7; p. 187-216;
    • (1996) Reviews in Computational Chemistry , vol.7 , pp. 187-216
    • Bartolotti, L.J.1    Fluchichk, K.2
  • 65
    • 0004150157 scopus 로고    scopus 로고
    • University of Göttingen, Germany
    • G. M. Sheldrick, SHELXx97; University of Göttingen, Germany, 1998.
    • (1998) SHELXx97
    • Sheldrick, G.M.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.