Synthesis of Two Key Intermediates for Hennoxazole a

Synlett

Volumn 1997, Issue 1, 1997, Pages 109-110

  Cheng, Zhenzhuang ^a   Hamada, Yasumasa ^b   Shioiri, Takayuki ^a  

^a NAGOYA CITY UNIVERSITY   (Japan)

^b CHIBA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000649322     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1997-17829     Document Type: Article

References (32)

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14. 1H-NMR spectrum.
15. 3) 178.29, 134.14, 117.05, 100.43, 66.02, 65.95, 65.10, 40.00, 38.78, 33.78, 27.14, 24.69, 24.64. See (a) Rychnovsky, S. D.; Skalitzky, D. J. Tetrahedron Lett. 1990, 31, 945. (b) Evans, D. A.; Rieger, D. L.; Gage, J. R. Tetrahedron Lett. 1990, 31, 7099. (c) Rychnovsky, S. D.; Rogers, B.; Yang, G. J. Org. Chem. 1993, 58, 3511.
16. 3) 178.29, 134.14, 117.05, 100.43, 66.02, 65.95, 65.10, 40.00, 38.78, 33.78, 27.14, 24.69, 24.64. See (a) Rychnovsky, S. D.; Skalitzky, D. J. Tetrahedron Lett. 1990, 31, 945. (b) Evans, D. A.; Rieger, D. L.; Gage, J. R. Tetrahedron Lett. 1990, 31, 7099. (c) Rychnovsky, S. D.; Rogers, B.; Yang, G. J. Org. Chem. 1993, 58, 3511.
17. 3) 178.29, 134.14, 117.05, 100.43, 66.02, 65.95, 65.10, 40.00, 38.78, 33.78, 27.14, 24.69, 24.64. See (a) Rychnovsky, S. D.; Skalitzky, D. J. Tetrahedron Lett. 1990, 31, 945. (b) Evans, D. A.; Rieger, D. L.; Gage, J. R. Tetrahedron Lett. 1990, 31, 7099. (c) Rychnovsky, S. D.; Rogers, B.; Yang, G. J. Org. Chem. 1993, 58, 3511.
18. A small amount of di-tosylated product was also obtained from the reaction mixture. The amount of the ditosylate depended on the reaction conditions.
19. 3): 5.82-5.67 (1H, m), 5.12-5.06 (3H, m), 2.96-2.94 (1H, m), 2.78-2.74 (1H, m), 2.48-2.45 (1H, m), 2.40-2.35 (2H, m), 1.81-1.71 (2H, m), 1.20 (9H, s).
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31. CMD (chemical manganese dioxide) is produced for the battery manufacture. Available from ITE Sample Office (Japan), 39-2 Youke Ukino, Chiaki-cho, Ichinomiya, Aichi 492, Japan (Fax +81-586-81-1988).
32. 3): 7.70-7.29 (11H, m), 5.06 (1H, s), 4.90 (1H, q, J=6.6), 2.96-2.91 (4H, m), 2.18-1.91 (2H, m), 1.50 (3H, d, J=6.6), 1.05 (9H, s).