Crystal and molecular structure of 3,5-dimethyl-1H-pyrazolide of 3-o-acetyl ursolic acid Full article
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Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 2011, Volume: 52, Number: 3, Pages: 582-588 Pages count : 7 DOI: 10.1134/S0022476611030206 | ||||
| Tags | Crystal structure; Pyrazolides; Ursolic acid | ||||
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Abstract:
3,5-Dimethyl-1H-pyrazolide of 3-O-acetyl ursolic acid (II) is obtained in the course of the interaction of 3-O-acetyl ursolic acid acyl chloride (I) and 3,5-dimethyl-1H-pyrazole. The crystal structure of compound II is determined from the single crystal XRD data (150 K, Bruker X8 Apex CCD autodiffractometer, MoKa radiation). The crystals are rhombic, the unit cell parameters are as follows: a = 10.6034(2) Å, b = 12.4096(2) Å, c = 24.5972(5) Å, P212121 space group. The structure consists of discrete acentric molecules. When pyrazolide II is boiled in the alcohol alkali solution, secondary hydroxyl is deacetylated and 3,5-dimethyl-1H-pyrazolide of ursolic acid IV is formed. Compounds II and IV are studied by NMR spectroscopy. Copyright © 2011 by S. A. Popov, L. A. Glinskaya, T. E. Kokina, R. F. Klevtsova, and A. V. Shpatov.
Cite:
Popov S.A.
, Glinskaya L.A.
, Kokina T.E.
, Klevtsova R.F.
, Shpatov A.V.
Crystal and molecular structure of 3,5-dimethyl-1H-pyrazolide of 3-o-acetyl ursolic acid
Journal of Structural Chemistry. 2011. V.52. N3. P.582-588. DOI: 10.1134/S0022476611030206 WOS Scopus РИНЦ OpenAlex
Crystal and molecular structure of 3,5-dimethyl-1H-pyrazolide of 3-o-acetyl ursolic acid
Journal of Structural Chemistry. 2011. V.52. N3. P.582-588. DOI: 10.1134/S0022476611030206 WOS Scopus РИНЦ OpenAlex
Original:
Попов С.А.
, Глинская Л.А.
, Кокина Т.Е.
, Клевцова Р.Ф.
, Шпатов А.В.
КРИСТАЛЛИЧЕСКАЯ И МОЛЕКУЛЯРНАЯ СТРУКТУРА 3,5-ДИМЕТИЛ-1H-ПИРАЗОЛИДА 3-O-АЦЕТИЛУРСОЛОВОЙ КИСЛОТЫ
Журнал структурной химии (J STRUCT CHEM+). 2011. Т.52. №3. С.599-604. РИНЦ
КРИСТАЛЛИЧЕСКАЯ И МОЛЕКУЛЯРНАЯ СТРУКТУРА 3,5-ДИМЕТИЛ-1H-ПИРАЗОЛИДА 3-O-АЦЕТИЛУРСОЛОВОЙ КИСЛОТЫ
Журнал структурной химии (J STRUCT CHEM+). 2011. Т.52. №3. С.599-604. РИНЦ
Dates:
| Published print: | Jun 1, 2011 |
| Published online: | Jul 29, 2011 |
Identifiers:
| Web of science: | WOS:000294860200020 |
| Scopus: | 2-s2.0-80054719541 |
| Elibrary: | 18009660 |
| OpenAlex: | W2132654330 |