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Reaction of 1-chloro-1-aryl2,2,2-trifluoroethylisocyanates with the ethyl ester ofβ-N-methylaminocrotonic acid. Synthesis of 2-aryl-2-trifluoromethyl-1,2,3,4-tetrahydropyrimidin-4-ones

✍ Scribed by M. V. Vovk; V. V. Pirozhenko

Publisher: Springer US
Year: 1994
Tongue: English
Weight: 228 KB
Volume: 30
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf01164740

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## Abstract 1‐(Aralkyl/aryl)‐3‐(alkyyaralkyl)‐5‐aroyl‐1,2,3,4‐tetrahydropyrimidines (**2a‐c**) have been synthesized by dethiomethylation of 5‐aroyl‐6‐methylthio‐1,2,3,4‐tetrahydropyrimidines (**1a‐c**). An alternative one‐pot synthetic strategy has been developed for the title compounds **2a‐t** b

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Further proof of structure of 2-oxo-4-(3,4-diethoxyphenyl)-5-carbethoxy-6-trifluoromethyl-l,2,3,4-tetrahydropyrimidine was obtained by comparison of the infrared spectrum\* of the compound with that of the 6-methyl analog. The spectra are identical except that a strong band for the C-F bond was foun