Process for the preparation of the 2-substituted-5-vinylpyrimidi

Details Process for the preparation of the 2-substituted-5-vinylpyrimidi Process for the preparation of the 2-substituted-5-vinylpyrimidi

1985-12-16

1988-08-09

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen bonded directly to ring carbon of the purine ring...

5253267, 525240, 525241, 526262, 526265, 544333, C07D40104

Patent

active

047629266

ABSTRACT:
The invention relates to 2-substituted 5-vinylpyrimidines of the formula ##STR1## wherein X is 2-pyridyl or 2-pyrimidyl, unsubstituted or substituted by methyl or ethyl groups. The compounds of formula (I) are suitable for the preparation of complex-forming or complexed, uncrosslinked or crosslinked polymers. Complexed polymers obtainable therefrom may be used as catalysts. Polymers complexed with Pd are particularly suitable for transvinylation reactions. Non-complexed polymers obtainable from compounds of formula (I) are suitable for use as metal ion extractors for different applications. The 2-substituted-5-vinylpyrimidines are prepared by the reaction of 5-formyl-alpha-pyrone with a secondary amine to form an alpha-vinyl-beta-secondary-aminoacrolein which is then condensed with a substituted amidine base to give the title compounds.

REFERENCES:
patent: 3557061 (1971-01-01), Hamann
patent: 3981882 (1976-09-01), Meyer et al.
patent: 4113934 (1978-09-01), Panzer et al.
patent: 4229515 (1980-10-01), Petrak
patent: 4379927 (1983-04-01), Vorbruggen et al.

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