
%0 Journal Article
%A Brown, RFC 
%A Crow, WD 
%A Subrahmanyan, L 
%A Barnes, CS 
%T Cyclic nitrones. II. Reactions of a cyclic &#945;-keto nitrone with acetic anhydride, acetone, and methyl acetoacetate
%J Australian Journal of Chemistry
%D 1967/11/01
%V 20
%N 11
%P 2485-2497
%K 
%R https://doi.org/10.1071/CH9672485
%U https://www.publish.csiro.au/paper/CH9672485 
%X The cyclic &#945;-keto nitrone 3,4,5,6-tetrahydro-5,5-dimethyl-3-oxopyridine 1-oxide (III) when treated with acetic anhydride and sulphuric acid gave in low yield a compound (XI) having both enol lactone and vinylogous amide functional groups.   Hydrolysis and decarboxylation of compound (XI) with aqueous potassium hydroxide gave a vinylogous amide (V), also obtained by acid- or base-catalysed condensation of compound (III) with isopropenyl acetate or acetone. Base-catalysed condensation of (III) with methyl acetoacetate gave an ester (XVII) closely related to compound (V). 
