Novel cyclopentenecarboxylates of the formula ##STR1## wherein AlK is alkyl of 1 to 4 carbon atoms and R is selected from the group consisting of --CHO and --CH.sub.2 OH and a process for their preparation and a process for the preparation of compounds of the formula ##STR2##
公式为 ##STR1## 的新型
环戊烯羧酸盐,其中AlK为1至4个碳原子的烷基,R选自--CHO和--CH.sub.2 OH的群体,并提供其制备方法;以及公式为 ##STR2## 的化合物的制备方法。