Enantiomerically enriched preparation of enolizable β-keto amides. Diastereoselective α-acylation and subsequent aminolysis of 2-acyl-3-phenyl-l-menthopyrazoles

Tetrahedron

Volumn 52, Issue 31, 1996, Pages 10335-10346

  Kashima, Choji ^a   Fukuchi, Iwao ^a   Takahashi, Katsumi ^a   Hosomi, Akira ^a  

^a UNIVERSITY OF TSUKUBA   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

PYRAZOLE DERIVATIVE;

ARTICLE; CHIRALITY; DRUG SYNTHESIS; PRIORITY JOURNAL; REACTION ANALYSIS;

EID: 0030605913     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/0040-4020(96)00550-9     Document Type: Article

References (10)

1. 1. Kashima, C.; Fukuchi, I.; Takahashi, K.; Hosomi, A. Tetrahedron Lett. 1993, 34, 8305.
2. 2. Kashima, C.; Fukuchi, I.; Takahashi, K.; Hosomi, A. Heterocycles, 1994, 38, 1407.
3. 3. Kashima, C.; Harada, H.; Kita, I.; Fukuchi, I.; Hosomi, A. Synthesis, 1994, 61.
4. 4. Kashima, C.; Kita, I.; Takahashi, K.; Hosomi, A. J. Heterocycl. Chem., 1995, 32, 25.
5. 5. Kashima, C.; Kita, I.; Takahashi, K.; Hosomi, A. J. Heterocycl. Chem., 1995, 32, 723.
6. 6. Kashima, C.; Fukuchi, I.; Hosomi, A. J. Org. Chem., 1994, 59, 7821.
7. 7. Kashima, C.; Takahashi, K.; Hosomi, A. Heterocycles, 1996, 42, 241.
8. 8 (a) DiPardo, R. M.; Bock, M. G. Tetrahedron Lett. 1983, 24, 4805.
9. (b) Evans, D. A.; Ennis, Ng, H. P.; Clark, J. S.; Rieger, D. L. J. Am. Chem. Soc., 1984, 106, 1154.
10. 9. The method of determination of diastereomeric excess for α-acylation of 13 is described in Ref. 6.