Synthesis of 3,5-disubstituted pyrazole derivatives with a carbamate function

Synthesis of 3,5-disubstituted pyrazole derivatives with a carbamate function

One-pot reaction of 1,3-dipolar cycloaddition of aryldiazamethanes generated in situ from the sodium salts of tosylhydrazones of benzaldehyde, p-nitro-, p-methoxy-, and 3,4-dimethoxybenzaldehyde to propargyl-N-phenyl carbamate under heating led to the formation of 3,5-disubstituted pyrazoles in good...

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Veröffentlicht in:Russian journal of organic chemistry 2009-08, Vol.45 (8), p.1208-1209
Hauptverfasser: Velikorodov, A. V, Kovalev, V. B, Krivosheev, O. O
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Organic Chemistry
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Zusammenfassung:One-pot reaction of 1,3-dipolar cycloaddition of aryldiazamethanes generated in situ from the sodium salts of tosylhydrazones of benzaldehyde, p-nitro-, p-methoxy-, and 3,4-dimethoxybenzaldehyde to propargyl-N-phenyl carbamate under heating led to the formation of 3,5-disubstituted pyrazoles in good yield and high regioselectivity.
ISSN:1070-4280
1608-3393
DOI:10.1134/S1070428009080156