Synthesis of Perhydrooxazinones from 2-Aza-3-Trimethylsilyloxy-1,3-Butadiene. A General Route to 3,3-Disubstituted-β-Hydroxy Acids

Abstract

1-Phenyl-2-aza-3-trimethylsilyloxy-1,3-butadiene reacts with aliphatic, aromatic and cyclic ketones to give in good to excellent yields 6,6-disubstituted-1,3-perhydro-oxazin-4-ones which, in turn, have been readily converted into β-hydroxy carboxylic acids.