9-Decenoic a~ id'~,'~ was isomerized by heating over 200'with potassium hydroxide in diethylene glycol to afford 8-decenoic acid, presumably in a form of an equilibrium mixture of cis-and transisomers. I6 Oxidation with chromic acid gave suberic acid in 70y0 yield. Ethyl 8- decenoate was converted similarly to 8-decenol and to the nonvolatile 1, 8, 9-triol.