5-methyl-5-prop-1-en-2-yl-2-trimethylsilylcyclopent-2-en-1-one

5-(1-chlor-1-methylaethyl)-5-methyl-2-(trimethylsilyl)-2-cyclopenten-1-on

5-(1-chlor-1-methylaethyl)-3,5-dimethyl-2-cyclopenten-1-on

3,5-dimethyl-5-prop-1-en-2-ylcyclopent-2-en-1-one

5-(2-chloropropan-2-yl)-3,5-dimethylcyclopent-2-en-1-one