[2+2]-PHOTOCYCLOADDITION OF (E)-2- (3,4-DIMETHOXYSTYRYL)PYRIMIDINE AND ITS SALTS IN CRYSTALS

Crystal structures of two salts of ( E )-2-(3,4-dimethoxystyryl)pyrimidinium (HDmsPy + ) are studied: (HDmsPy)Cl·H 2 O and (HDmsPy)Cl·0.5С 6 H 4 (OH) 2 . ( E )-2-(3,4-dimethoxystyryl)pyrimidinium chloride is photoinert. Upon UV irradiation, the ( E )-2-(3,4-dimethoxystyryl)pyrimidinium cocrystal wit...

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Bibliographic Details
Published inJournal of structural chemistry Vol. 63; no. 3; pp. 451 - 459
Main Authors Karnoukhova, V. A., Saifutairova, A. E., Fedorova, O. A., Vologzhanina, A. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2022
Springer Nature B.V
Subjects
Atomic
Atomic/Molecular Structure and Spectra
Catechol
Chemistry
Chemistry and Materials Science
Crystal structure
Inorganic Chemistry
Molecular
NMR spectroscopy
Optical and Plasma Physics
Physical Chemistry
Reaction products
Solid phases
Solid State Physics
Ultraviolet radiation
dimerization
crystal structure
diazines
[2+2]-photocycloaddition
styryl derivatives
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Summary:Crystal structures of two salts of ( E )-2-(3,4-dimethoxystyryl)pyrimidinium (HDmsPy + ) are studied: (HDmsPy)Cl·H 2 O and (HDmsPy)Cl·0.5С 6 H 4 (OH) 2 . ( E )-2-(3,4-dimethoxystyryl)pyrimidinium chloride is photoinert. Upon UV irradiation, the ( E )-2-(3,4-dimethoxystyryl)pyrimidinium cocrystal with catechol as well as pure ( E )-2-(3,4-dimethoxystyryl)pyrimidine (DmsPy) are involved in the [2+2]-photocycloaddition reaction with crystal destruction. Structures of solid phase reaction products and a similar photocycloaddition reaction in the solution are analyzed by 1 H NMR spectroscopy.
ISSN:0022-4766
1573-8779
DOI:10.1134/S0022476622030118