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An unexpected reaction of 3-aryl-2-pyrazolin-5-ylacetohydrazides with chlorine: formation of 3-aryl-4-chloro-5-trichloromethylpyrazoles

Sergei Aleksandrovich Voznesensky 1
Sergei Aleksandrovich Voznesensky
, 
Leonid Isaakovich Belen'kii 1
Leonid Isaakovich Belen'kii
, 
Arkady Anatol'evich Dudinov 1
Arkady Anatol'evich Dudinov
, 
Marina Ivanovna Struchkova 1
Marina Ivanovna Struchkova
, 
Mikhail Mikhailovich Krayushkin 1
Mikhail Mikhailovich Krayushkin
10.1070/MC1998v008n01ABEH000897
Published 1998-02-28
Communication , Volume 8, Issue 1, 14-15
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Voznesensky S. A. et al. An unexpected reaction of 3-aryl-2-pyrazolin-5-ylacetohydrazides with chlorine: formation of 3-aryl-4-chloro-5-trichloromethylpyrazoles // Mendeleev Communications. 1998. Vol. 8. No. 1. pp. 14-15.
GOST all authors (up to 50) Copy
Voznesensky S. A., Belen'kii L. I., Dudinov A. A., Struchkova M. I., Krayushkin M. M. An unexpected reaction of 3-aryl-2-pyrazolin-5-ylacetohydrazides with chlorine: formation of 3-aryl-4-chloro-5-trichloromethylpyrazoles // Mendeleev Communications. 1998. Vol. 8. No. 1. pp. 14-15.
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TY - JOUR
DO - 10.1070/MC1998v008n01ABEH000897
UR - https://mendcomm.colab.ws/publications/10.1070/MC1998v008n01ABEH000897
TI - An unexpected reaction of 3-aryl-2-pyrazolin-5-ylacetohydrazides with chlorine: formation of 3-aryl-4-chloro-5-trichloromethylpyrazoles
T2 - Mendeleev Communications
AU - Voznesensky, Sergei Aleksandrovich
AU - Belen'kii, Leonid Isaakovich
AU - Dudinov, Arkady Anatol'evich
AU - Struchkova, Marina Ivanovna
AU - Krayushkin, Mikhail Mikhailovich
PY - 1998
DA - 1998/02/28
PB - Mendeleev Communications
SP - 14-15
IS - 1
VL - 8
ER -
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@article{1998_Voznesensky,
author = {Sergei Aleksandrovich Voznesensky and Leonid Isaakovich Belen'kii and Arkady Anatol'evich Dudinov and Marina Ivanovna Struchkova and Mikhail Mikhailovich Krayushkin},
title = {An unexpected reaction of 3-aryl-2-pyrazolin-5-ylacetohydrazides with chlorine: formation of 3-aryl-4-chloro-5-trichloromethylpyrazoles},
journal = {Mendeleev Communications},
year = {1998},
volume = {8},
publisher = {Mendeleev Communications},
month = {Feb},
url = {https://mendcomm.colab.ws/publications/10.1070/MC1998v008n01ABEH000897},
number = {1},
pages = {14--15},
doi = {10.1070/MC1998v008n01ABEH000897}
}
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Voznesensky, Sergei Aleksandrovich, et al. “An unexpected reaction of 3-aryl-2-pyrazolin-5-ylacetohydrazides with chlorine: formation of 3-aryl-4-chloro-5-trichloromethylpyrazoles.” Mendeleev Communications, vol. 8, no. 1, Feb. 1998, pp. 14-15. https://mendcomm.colab.ws/publications/10.1070/MC1998v008n01ABEH000897.

Abstract

In attempting to synthesize 3-aryl-2-pyrazolin-5-ylacetyl chlorides by chlorination of the respective hydrazides, 3-aryl-4-chloro-5-trichloromethylpyrazoles have been obtained; a probable mechanism for the transformation is discussed.

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