Patent ID: 6900332

Claim:
) A process for preparing 5-alkoxy-substituted oxazoles of the formula I, where R 1 is an unsubstituted or substituted C 1 -C 6 -alkyl radical and R 2 is hydrogen or an unsubstituted or substituted C 1 -C 6 -alkyl radical, which comprises converting α-isocyanoalkanoate esters of the formula II in the presence of assistants at temperatures above 80° C. into the 5-alkoxy-substituted oxazoles of the formula I and, simultaneously with the conversion, removing the 5-alkoxy-substituted oxazoles of the formula I from the reaction mixture, wherein said assistants are cyclizing assistants selected from the group consisting of tertiary amines, alcohols and substituted or unsubstituted C 1 -C 6 -alkanoates.