Preparation of n-(1-alkoxyalkyl) formamide and bis formamides

C - Chemistry – Metallurgy – 07 – C

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C07C 231/12 (2006.01) C07C 231/08 (2006.01) C07C 233/05 (2006.01) C07C 233/18 (2006.01)

Patent

CA 2057746

This invention relates to an improved process for the formation of N-(1-alkoxyalkyl)amides with coproduction of alkylidene bisamides. The N-(1-alkoxyalkyl)formamides of this invention are prepared by reacting formamide with an acetal or hemiacetal carboxylate ester represented by the formulas: I II Image Image wherein R is C1-C8 alkyl, aralkyl or aryl; R1 and R2 are C1-C8 alkyl, or aryl; and R3 is secondary or tertiary alkyl having from 3-8 carbon atoms. The reaction is carried out in the presence of an acid catalyst such as a strong acid ion exchange resin.

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