Diacetone-D-glucose-mediated asymmetric syntheses of dihydroquinoxalinones

Heterocycles

Volumn 71, Issue 1, 2007, Pages 5-11

  Kim, Yongtae ^a   Lee, Min Hee ^a   Choi, Eui Ta ^a   No, Eun Sun ^a   Park, Yong Sun ^a  

^a Konkuk University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33847383365     PISSN: 03855414     EISSN: None     Source Type: Journal    
DOI: 10.3987/com-06-10910     Document Type: Article

References (21)

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11. It has been proposed by several examples that the epimerization promoted by TBAI (or TBAB) via nucleophilic displacement of the halide ion and/or base via keto-enol tautomerization. Treweeke N.R., Hitchcock P.B., Pardoe D.A., and Caddick S. Chem. Commun. (2005) 1868
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19. 2 (10 mL × 2) and the combined extracts were washed with brine. The solvent was removed under reduced pressure and the crude material was purified by column chromatography to give a dihydroquinoxalinone.
20. 1d
21. 3, 400 MHz) 10a, 8.11 (or, 1H), 6.80-6.56 (m, 3H), 3.98 (q, J = 6.6 Hz, 1H), 3,83 (br, 1H), 2.25 (s, 3H), 1.46 (d, J = 7.2 Hz, 3H); 10b, 8.69 (br, 1H), 6.80-6.56 (m, 3H), 4.04 (q, J = 6.6 Hz, 1H), 3,71 (br, 1H), 2.17 (s, 3H), 1.49 (d, J = 6.8 Hz, 3H). {A figure is presented}