Condensation of 2-Amino-1,3-thiazole Salts and Benzo Analogs with Trifluoroacetylacetone

The condensation of 2-amino-1,3-thiazolium perchlorates and their benzo analogs with trifluoro­acetyl­acetone in acetic acid afforded the corresponding [1,3]thiazolo[3,2- a ]pyrimidinium, pyrimido[2,1- b ][1,3]benzothiazolium, and naphtho[2′,1′:4,5][1,3]thiazolo[3,2- a ]pyrimidinium salts as a singl...

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Bibliographic Details
Published in:Russian journal of organic chemistry 2021-03, Vol.57 (3), p.364-368
Main Authors: Shulga, S. I., Simurova, N. V., Shulga, O. S.
Format: Article
Language:English
Subjects:
Acetic acid
Analogs
Chemistry
Chemistry and Materials Science
NMR
Nuclear magnetic resonance
Organic Chemistry
Perchlorates
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Summary:The condensation of 2-amino-1,3-thiazolium perchlorates and their benzo analogs with trifluoro­acetyl­acetone in acetic acid afforded the corresponding [1,3]thiazolo[3,2- a ]pyrimidinium, pyrimido[2,1- b ][1,3]benzothiazolium, and naphtho[2′,1′:4,5][1,3]thiazolo[3,2- a ]pyrimidinium salts as a single isomer in which the trifluoromethyl group is located in the γ-position with respect to the bridgehead nitrogen atom. The structure of the synthesized compounds was confirmed by 1 H NMR spectra and elemental analyses.
ISSN:1070-4280
1608-3393
DOI:10.1134/S1070428021030064