- METHOD FOR THE PRODUCTION OF ACETAMIDE ACETALS
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The invention relates to a method for production of acetamide acetals of formula (I), where R1 and R2 independently = C1-C6 alkyl, phenyl or benzyl, or together form a C2-C6 alkylene and R3 and R4 independently = H, C1-C6 alkyl or benzyl, or together form a C3-C6 alkylene, whereby a glyoxylate ester diacetal of formula (II), in which R1 and R2 are as above and R5 = C1-C4 alkyl, is reacted with DMF or an amine of formula (III) NHR4R5, where R4 and R5 are as above, in the presence of 0.005 to 3 Mol %, based on the amine of formula (III), of an alcoholate of formula (IV) XOC1-C4, where X = Na, K or Li, at a reaction temperature of 0 to 100 °C to give the corresponding compound of formula (I).
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