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Novel Synthesis of 5-Amino-3-bromo-1-( tert- butyl)-1 H -pyrazole-4-carbonitrile: A Versatile Intermediate for the Preparation of 5-Amino-3-aryl-1-( tert- butyl)-1 H -pyrazole-4-carboxamides

✍ Scribed by Bobko, Mark A.; Kaura, Arun C.; Evans, Karen A.; Su, Dai-Shi

Book ID
118002161
Publisher
American Chemical Society
Year
2012
Tongue
English
Weight
277 KB
Volume
14
Category
Article
ISSN
1523-7060

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πŸ“œ SIMILAR VOLUMES

The tautomerism of 1H-pyrazole-3(5)-(N-t
The tautomerism of 1H-pyrazole-3(5)-(N-tert-butyl)carboxamide in the solid state and in solution
✍ Rosa M. Claramunt; M. Ángeles GarcΓ­a; ConcepciΓ³n LΓ³pez; Swiatoslaw Trofimenko; G πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 130 KB

## Abstract The X‐ray crystal structure of 1__H__‐pyrazole‐3‐(__N‐tert__‐butyl)‐carboxamide was determined. In the solid state, the ^13^C and ^15^N CP/MAS NMR spectra correspond to this tautomer. In solution, both tautomers are present in a ratio that depends on the temperature (at 293 K, 90% 3‐sub