
TY  - JOUR
A1  - Brown, RFC 
A1  - Crow, WD 
A1  - Subrahmanyan, L 
A1  - Barnes, CS 
T1  - Cyclic nitrones. II. Reactions of a cyclic &#945;-keto nitrone with acetic anhydride, acetone, and methyl acetoacetate
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1967
VL  - 20
IS  - 11
SP  - 2485
EP  - 2497
KW  - 
UR  - https://doi.org/10.1071/CH9672485 
N2  - 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). 
ER  -

