反应详情

To a mixture of acetic acid (75 ml), water (75 ml) and chromium trioxide (75 g; 0.75 moles) there are added dropwise under agitation 3'-chlorospiro(cyclopentane-1,1'-indan) (103 g; 0.5 moles), the temperature being held at 30°-40° C. by external cooling.

1. custombeing held at 30°-40° C. by external cooling