On the methylation of pyrazolones

Scientia Pharmaceutica

Volumn 64, Issue 3-4, 1996, Pages 455-462

  Holzer, Wolfgang ^a   Plagens, Brigitte ^a  

^a UNIVERSITY OF VIENNA   (Austria)

Author keywords

1 3C NMR spectroscopy; hydroxypyrazoles; methylation; pyrazolones; trimethylsilyldiazomethane

Indexed keywords

PYRAZOLONE DERIVATIVE;

ARTICLE; CHEMICAL REACTION; CHEMICAL STRUCTURE; INFRARED SPECTROPHOTOMETRY; MASS SPECTROMETRY; METHYLATION; NUCLEAR MAGNETIC RESONANCE; SYNTHESIS;

EID: 0029780656     PISSN: 00368709     EISSN: 22180532     Source Type: Journal    
DOI: None     Document Type: Article

References (22)

1. López R., León G., Oliva A. (1995), J. Heterocyclic Chem. 32: 1377; and references cited therein
2. Elguero J., Marzin C., Katritzky A. R., Linda P. (1976), The Tautomerism of Heterocycles, in: Advances in Heterocyclic Chemistry, Supplement 1, Academic Press, New York - San Francisco - London, p. 334; and references cited therein
3. Schofield K., Grimmett M. R., Keene B. R. T. (1976), Heteroaromatic Nitrogen Compounds: The Azoles, Cambridge University Press, Cambridge, p. 86 ff.
4. Grandmougin E., Havas E., Guyot G. (1913), Chem. Ztg. 37: 812
5. Michaelis A., Engelhardt F. (1908), Chem. Ber. 41: 2668
6. Chiba P., Ecker G., Heistracher P., Holzer W., Landau M., Reith M., Studenik C., manuscript in preparation
7. v. Pechmann H. (1895), Chem. Ber. 28: 1624
8. Sarenko A. S., Kvitko I. Ya., Éfros L. S. (1972), Chem. Heterocyclic Comp. (Engl. Transl.) 8: 722
9. Seyferth D., Dow A. W., Menzel H., Flood T. C. (1968), J. Am. Chem. Soc. 90: 1080
10. Aoyama T., Shioiri T. (1990) Tetrahedron Lett. 31: 5507
11. Holzer W., Schmid E. (1995) J. Heterocyclic Chem. 32: 1341
12. Neuhaus D., Williamson M. P. (1989), The Nuclear Overhauser Effect in Structural and Conformational Analysis, VCH Publishers, New York, p. 217
13. Bax A., Subramanian S. (1986) J. Magn. Reson. 67: 565
14. Kessler H., Anders U., Gemmecker G., Steuernagel S. (1989), J. Magn. Reson. 85: I; Inagaki F., Shimada I., Kohda D., Suzuki A., Bax A. (1985) J. Magn. Reson. 62: 109
15. Kessler H., Anders U., Gemmecker G., Steuernagel S. (1989), J. Magn. Reson. 85: I; Inagaki F., Shimada I., Kohda D., Suzuki A., Bax A. (1985) J. Magn. Reson. 62: 109
16. Bax A. (1984) J. Magn. Reson. 57: 314
17. Lakkis M., Lakkis Z., Goetz-Grandmont G. J., Brunette J.-P. (1991), Monatsh. Chem. 122: 9
18. Sasaki Y., Freiser H. (1983), Inorg. Chem. 22: 2289
19. Mustafa A., Fleifel A. M., Ali M. I., Hassan N. M. (1970), Liebigs Ann. Chem. 739: 75
20. Stach K. (1962), Arch. Pharm. 295: 853
21. Schulte K. E., Reisch J., Dietz E. (1970), Chim. Ther. 5: 123
22. El-Sakka I. A., Kandil A., El-Moghayar M. H. (1983) Arch. Pharm. (Weinheim) 316: 76