Process for the preparation of N-.alpha.-alkoxyalkyl-carboxamides, and some representatives of this class of compounds and secondary products obtained therefrom

US4334097A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventor

• Erwin Schmidt · Baltmannsweiler, DE

Key dates

• Filing date: May 1, 1981
• Grant date: Jun 8, 1982
• Expiry date: May 1, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D205/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-.alpha.-Alkoxyalkyl-carboxamides are prepared by reacting primary or secondary amides of aliphatic, araliphatic or aromatic carboxylic acids, or cyclic carboxamides (lactams) which are not capable of forming an aromatic system, with open-chain .alpha.-halogenoalkyl ethers with at least 3 C atoms per molecule, in the presence of tertiary amines. N,N-Bis-.alpha.-alkoxyalkylcarboxamides can also be obtained from the primary carboxiamides. The reaction products, of which the compounds V and VI: ##STR1## wherein R.sup.4 =C.sub. -C.sub.4 -alkyl and R.sup.5 =CH.sub.3 or C.sub.2 H.sub.5, are new, are intermediates mainly for the preparation of N-alkenyl- or N-vinyl-carboxamides, of which, in turn, the compounds VII are new: ##STR2## The N-alkenyl- or N-vinyl-carboxamides can themselves be processed to give valuable homopolymers and copolymers.