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Volumn 50, Issue 27, 2009, Pages 3790-3793

Efficient synthesis of 2,3-dihydro-1,4-benzoxazines via intramolecular copper-catalyzed O-arylation

Author keywords

Benzoxazine; Copper; Intramolecular; O Arylation; Ullmann coupling

Indexed keywords

AMINOALCOHOL; BENZOXAZINE DERIVATIVE; COPPER;

EID: 65549149477     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2009.04.055     Document Type: Article
Times cited : (35)

References (61)
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    • J. Neurosci. 25 (2005) 584-593
    • (2005) J. Neurosci. , vol.25 , pp. 584-593
  • 29
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    • and references therein
    • Lindley J. Tetrahedron 40 (1984) 1433-1456 and references therein
    • (1984) Tetrahedron , vol.40 , pp. 1433-1456
    • Lindley, J.1
  • 30
    • 65549084142 scopus 로고    scopus 로고
    • Taillefer, M. Cristau, H.-J.; Cellier, P. P.; Spindler, J.-F. Fr 2833947-WO 0353225 (Pr. Nb. Fr 2001 16547), 2001; Taillefer, M.; Cristau, H.-J.; Cellier, P. P.; Spindler, J.-F.; Ouali, A. Fr 2840303-WO 03101966 (Pr. Nb. Fr 2002 06717), 2002.
    • Taillefer, M. Cristau, H.-J.; Cellier, P. P.; Spindler, J.-F. Fr 2833947-WO 0353225 (Pr. Nb. Fr 2001 16547), 2001; Taillefer, M.; Cristau, H.-J.; Cellier, P. P.; Spindler, J.-F.; Ouali, A. Fr 2840303-WO 03101966 (Pr. Nb. Fr 2002 06717), 2002.
  • 59
    • 65549104593 scopus 로고    scopus 로고
    • note
    • 3): δ 145.9, 137.8, 129.1, 122.0, 111.0, 85.1, 65.9, 51.5, 20.9.
  • 60
    • 65549093012 scopus 로고    scopus 로고
    • note
    • Typical representative experimental procedure: NaOt-Bu (96 mg, 1 mmol), CuI (9.5 mg, 0.05 mmol), 1,10-phenanthroline (18 mg, 0.1 mmol), and 1a (155 mg, 0.5 mmol) were taken in a 10 ml round-bottomed flask. The flask was evacuated and back-filled with nitrogen three times. Dry dioxane (2 ml) was added to the mixture at room temperature. The resulting mixture was placed at oil base, and heated for 24 h at 100 °C. after complete disappearance of 1a (TLC), the reaction mixture was allowed to cool to room temperature and the solvent was evaporated. The mixture was purified by flash chromatography on silica gel using ethyl acetate/petroleum ether as eluent to give white solid 2a (79 mg, 86%).
  • 61
    • 65549101305 scopus 로고    scopus 로고
    • note
    • 10NOCl: 183.0529; found: 184.0518 [M+H].


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.