A Convenient Synthesis of 2-Acylmethyl-4,4-dimethyl-2-oxazolines. Useful Reagents for β-Keto Ester Synthesis

Abstract
Acylation of 2,4,4-trimethyl-2-oxazoline with acid chlorides having no α-proton and triethylamine gave C,N-diacylated products. Hydrolysis of the products with potassium hydroxide gave the enols of 2-acylmethyl-oxazolines, which were selectively C-monoalkylated by alkyl halides.