反应详情

A stirred suspension of 2,2-dimethyl-5-methoxy-6,7-dichloro-1-indanone (12.2 g., 0.047 mole) and aluminum chloride (15.5 g., 0.116 mole) in heptane (500 ml.) is refluxed for one hour and cooled. The heptane is decanted from the reaction mixture and the solid residue is poured into ice (500 g.) and concentrated hydrochloric acid (50 ml.). The product which separates (7.6 g.) melts at 273° C. after crystallization from nitromethane.

1. temperatureis refluxed for one hour
2. temperaturecooled
3. customThe heptane is decanted from the reaction mixture
4. additionthe solid residue is poured into ice (500 g.) and concentrated hydrochloric acid (50 ml.)
5. customafter crystallization from nitromethane