2-Carboxy-2-methyl-hepten-6-saeureethylester 在
吡啶 、
lead(IV) acetate 、 copper diacetate 作用下,
以
乙腈 为溶剂,
生成 1-Methyl-cyclohexen-(2)-carbonsaeure-aethylester 、 1-Carboxy-1-methyl-2-hydroxymethyl-cyclopentan-cis-lacton 、
1-methyl-2-methylen-1-cyclopentancarbonsaeure-aethylester