Process for reducing acid impurity levels in N-(tertiaryaminoalk

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

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544 86, 544 96, 546186, 546208, 546209, 26032625, C07C10364

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active

042514614

ABSTRACT:
A non-catalytic process for the preparation of N-(tertiaryaminoalkyl)acrylamides is disclosed which comprises subjecting a corresponding .beta.-aminopropionamide to a pyrolysis temperature of about 180.degree. to 300.degree. C. after storage of the .beta.-aminopropionamide in an atmospheric holding tank at a temperature of about 150.degree. to 220.degree. C. from eight to seventy-two hours prior to pyrolysis. The corresponding .beta.-aminopropionamide compounds can be prepared by mixing and reacting at least two moles of a tertiaryaminoalkyl amine with an acrylic acid or ester compound. The inventive process provides the production of the N-(tertiaryaminoalkyl)acrylamides in high yields with minimal back addition or polymerization and greatly reduced acid impurity levels.

REFERENCES:
patent: 2683741 (1954-07-01), Wiley
patent: 3652671 (1972-03-01), Barron
patent: 3878247 (1975-04-01), Moss et al.
patent: 3883491 (1975-05-01), Hoke
patent: 3914303 (1975-10-01), Daniher et al.
patent: 4031138 (1977-06-01), Nieh et al.
patent: 4180643 (1979-12-01), Moss et al.

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