91606 ⎘
Ketones; Ketenes; Dimeric ketenes ; Ketonic chelates; Unsaturated compounds containing keto groups bound to acyclic carbon atoms containing halogen containing rings other than six-membered aromatic rings
Processes for preparing a 2-(1,2,2-trimethyl-3-cyclopentenyl)-2-oxoethyl carboxylate compound and hydroxymethyl 1,2,2-trimethyl-3-cyclopentenyl ketone, and a halomethyl (1,2,2-trimethyl-3-cyclopentenyl) ketone compound