
%0 Journal Article
%A Lewis, KG 
%A Williams, GJ 
%T Syntheses in the cyclohexanone series. II. The syntheses of 4-Ethylcyclohex-2- enone, 4-Ethylcyclohex-3-enone, and 4-Ethylidenecyclohexanone
%J Australian Journal of Chemistry
%D 1970/04/01
%V 23
%N 4
%P 807-812
%K 
%R https://doi.org/10.1071/CH9700807
%U https://www.publish.csiro.au/paper/CH9700807 
%X An attempt to synthesize 4-ethylcyclohex-2-enone by a Robinson-type ring closure gave a mixture of conjugated and non-conjugated ketones from which the conjugated isomer was isolated. 4-Ethylcyclohex-3-enone on treatment with acid yielded the same mixture of ketones. Pyrolysis of 4-carboxy-4-vinylheptanedioic acid with barium carbonate formed 4-ethylidenecyclohexanone. 
