
%0 Journal Article
%A Johnson, RN 
%A Riggs, NV 
%T Novel condensation products of 3-Hydroxy-2,2-dimethylpropionaldehyde with malonic acid
%J Australian Journal of Chemistry
%D 1974/11/01
%V 27
%N 11
%P 2519-2524
%K 
%R https://doi.org/10.1071/CH9742519
%U https://www.publish.csiro.au/paper/CH9742519 
%X Reaction of 3-hydroxy-2,2-dimethylpropionaldehyde and malonic acid in acetic anhydride-acetic acid yields 4,4-dimethylpent-2-en-5-olide, corresponding to the normal product of condensation of one molecule of aldehyde and one molecule of malonic acid, along with two novel related &#948;-lactones derived from two molecules of aldehyde and one molecule of malonic acid: one is a saturated lactone having a hydroxy-gem- dimethyltetrahydropyran ring fused across the 2,3-bond of the above normal product, and the other is the corresponding unsaturated fused dihydropyranolactone. 
