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volume 21 issue 6 pages 355-360

Cascade assembling of pyrazolin-5-ones and benzylidenemalononitriles: the facile and efficient approach to medicinally relevant spirocyclopropylpyrazolone scaffold

Publication typeJournal Article
Publication date2015-11-12
scimago Q3
wos Q3
SJR0.292
CiteScore3.4
Impact factor1.5
ISSN07930283, 21910197
Organic Chemistry
Abstract

A new cascade reaction provides a direct transformation of pyrazolin-5-ones and benzylidene-malononitriles by the action of bromine into substituted spirocyclopropylpyrazolones in 60–88% yields. This process can be realized in two variants, namely, (1) by treatment with bromine in the presence of base and (2) by treatment with bromine only with heating. These facile and efficient one-step cascade processes lead to the spirocyclopropylpyrazolone framework, which is present in a perspective class of compounds with prominent pharmacological and physiological activity.

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Vereshchagin A. N. et al. Cascade assembling of pyrazolin-5-ones and benzylidenemalononitriles: the facile and efficient approach to medicinally relevant spirocyclopropylpyrazolone scaffold // Heterocyclic Communications. 2015. Vol. 21. No. 6. pp. 355-360.
GOST all authors (up to 50) Copy
Vereshchagin A. N., Elinson M. N., Korshunov A. D., Korolev V. A., Egorov M. P. Cascade assembling of pyrazolin-5-ones and benzylidenemalononitriles: the facile and efficient approach to medicinally relevant spirocyclopropylpyrazolone scaffold // Heterocyclic Communications. 2015. Vol. 21. No. 6. pp. 355-360.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1515/hc-2015-0141
UR - https://doi.org/10.1515/hc-2015-0141
TI - Cascade assembling of pyrazolin-5-ones and benzylidenemalononitriles: the facile and efficient approach to medicinally relevant spirocyclopropylpyrazolone scaffold
T2 - Heterocyclic Communications
AU - Vereshchagin, Anatoly N.
AU - Elinson, Michail N
AU - Korshunov, Aleksander D
AU - Korolev, Victor A
AU - Egorov, Mikhail P.
PY - 2015
DA - 2015/11/12
PB - Walter de Gruyter
SP - 355-360
IS - 6
VL - 21
SN - 0793-0283
SN - 2191-0197
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2015_Vereshchagin,
author = {Anatoly N. Vereshchagin and Michail N Elinson and Aleksander D Korshunov and Victor A Korolev and Mikhail P. Egorov},
title = {Cascade assembling of pyrazolin-5-ones and benzylidenemalononitriles: the facile and efficient approach to medicinally relevant spirocyclopropylpyrazolone scaffold},
journal = {Heterocyclic Communications},
year = {2015},
volume = {21},
publisher = {Walter de Gruyter},
month = {nov},
url = {https://doi.org/10.1515/hc-2015-0141},
number = {6},
pages = {355--360},
doi = {10.1515/hc-2015-0141}
}
MLA
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MLA Copy
Vereshchagin, Anatoly N., et al. “Cascade assembling of pyrazolin-5-ones and benzylidenemalononitriles: the facile and efficient approach to medicinally relevant spirocyclopropylpyrazolone scaffold.” Heterocyclic Communications, vol. 21, no. 6, Nov. 2015, pp. 355-360. https://doi.org/10.1515/hc-2015-0141.