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ChemInform Abstract: Palladium-Catalyzed Carbomethoxyvinylation and Thienylation of 5-Iodo( Bromo)-2,4-dimethoxypyrimidine in Water.

✍ Scribed by I. BASNAK; S. TAKATORI; R. T. WALKER

Publisher: John Wiley and Sons
Year: 2010
Weight: 29 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199741189

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✦ Synopsis

Palladium-Catalyzed Carbomethoxyvinylation and Thienylation of 5-Iodo( Bromo)-2,4-dimethoxypyrimidine in Water. -In connection with a programme concerning the synthesis of new deoxyuridines, the heterogeneous Heck-reaction of 5-halopyrimidine (I) is investigated. With methyl acrylate and thiophene 5-substituted derivatives are obtained. Surprisingly, the use of thiophene under pressure and higher temperature results in formation of the 6-substituted product (VI).

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