Springer Nature
Chemistry of Heterocyclic Compounds
,  том 19 ,  издание 12 ,  страницы 1322-1326

Amination of isomeric bromo-1-methylnitropyrazoles

Тип публикации: Journal Article
Дата публикации: 1983-12-01
Springer Nature
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SJR: 0.243
CiteScore: 2.7
Impact factor: 1
ISSN: 00093122, 15738353
Organic Chemistry
Краткое описание
A method was developed for the synthesis of 5-bromo-1-methyl-4-nitropyrazole from 1-methylpyrazole. In the reaction with 25% aqueous ammonia at 180–190 °C, 5-bromo-1-methyl-4-nitropyrazole is readily converted to 5-amino-1-methyl-4-nitropyrazole; the production of 4-amino-1-methyl-5-nitropyrazole from 4-bromo-1-methyl-5-nitropyrazole requires the presence of a copper catalyst; under the same conditions in the amination of 4-bromo-1-methyl-3-nitropyrazole, 4-amino-1-methyl-3-nitro- and 1-methyl-3-nitropyrazoles are formed in a 2∶3 ratio.
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Perevalov V. P. et al. Amination of isomeric bromo-1-methylnitropyrazoles // Chemistry of Heterocyclic Compounds. 1983. Vol. 19. No. 12. pp. 1322-1326.
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Perevalov V. P., Baryshnenkova L. I., Andreeva M., Manaev Yu. A., Denisova I. A., Stepanov B., Seraya V. I. Amination of isomeric bromo-1-methylnitropyrazoles // Chemistry of Heterocyclic Compounds. 1983. Vol. 19. No. 12. pp. 1322-1326.
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TY - JOUR
DO - 10.1007/bf00842842
UR - https://doi.org/10.1007/bf00842842
TI - Amination of isomeric bromo-1-methylnitropyrazoles
T2 - Chemistry of Heterocyclic Compounds
AU - Perevalov, V P
AU - Baryshnenkova, L I
AU - Andreeva, M. A.
AU - Manaev, Yu A
AU - Denisova, I A
AU - Stepanov, B.I.
AU - Seraya, V I
PY - 1983
DA - 1983/12/01
PB - Springer Nature
SP - 1322-1326
IS - 12
VL - 19
SN - 0009-3122
SN - 1573-8353
ER -
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@article{1983_Perevalov,
author = {V P Perevalov and L I Baryshnenkova and M. A. Andreeva and Yu A Manaev and I A Denisova and B.I. Stepanov and V I Seraya},
title = {Amination of isomeric bromo-1-methylnitropyrazoles},
journal = {Chemistry of Heterocyclic Compounds},
year = {1983},
volume = {19},
publisher = {Springer Nature},
month = {dec},
url = {https://doi.org/10.1007/bf00842842},
number = {12},
pages = {1322--1326},
doi = {10.1007/bf00842842}
}
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Perevalov, V. P., et al. “Amination of isomeric bromo-1-methylnitropyrazoles.” Chemistry of Heterocyclic Compounds, vol. 19, no. 12, Dec. 1983, pp. 1322-1326. https://doi.org/10.1007/bf00842842.