Oxidation by strong oxidizing agents converts it successively into its aldehyde, acrolein, and into acrylic acid.
Doebner (Ber., 1902, 35, pp. 2129, 2 53 8; 1903, 3 6, p. 43 18) obtained compounds, which in all probability are cyclo-octadienes, by the distillation of s-vinylacrylic acid, sorbic acid, and cinnamenyl acrylic acid with anhydrous baryta.
The ring of this compound is ruptured by caustic soda with the formation of perchlorvinyl acrylic acid (5), which gives on reduction ethidine propionic acid (6), a compound containing five of the carbon atoms originally in the benzene ring (see Zincke, Ber., 18 94, 27, p. 33 6 4) (the carbon atoms are omitted in some of the formulae).
It oxidizes readily: exposure to air giving acrylic acid, nitric acid giving oxalic acid, bichromate of potash and sulphuric acid giving carbon dioxide and formic acid.
It forms an addition product with acrylic ester, which on heating loses nitrogen and leaves trimethylene dicarboxylic ester.