Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1983-09-22
1986-08-12
Jiles, Henry R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544226, 544399, 544151, 544176, 549463, 549465, 549467, 549468, 564135, 564205, 546196, 548525, 548540, C07D40512, C07D10206, C07D103133, C07D30793
Patent
active
046057404
ABSTRACT:
The present invention relates to a process for the production of N-substituted acrylic acid amides by conversion of 2-carboalkoxy-t-oxabicyclo(2,2,1)hept-5-enes with primary or secondary amines to 2-carboxamide-7-oxabicyclo(2,2,1)hept-5-enes and the thermal decomposition of the latter, preferably in the presence of Lewis acids and in a vacuum, to furane and N-substituted acrylic acid amides. The process according to the invention results in high purity N-substituted acrylic acid amides that are, in the main, free of bifunctional monomers which would disrupt the subsequent polymerization of the N-substituted acrylic acid amides by undesired cross-linking.
REFERENCES:
patent: 2719175 (1955-09-01), Coover et al.
patent: 2719178 (1955-09-01), Coover et al.
patent: 3813438 (1974-05-01), Oshima et al.
Bartlett et al., C.A., vol. 97, 5547w, p. 5549, 1982.
Chemische Fabrik Stockhausen GmbH
Jiles Henry R.
Mullins J. G.
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