反应详情

Alternatively 4-(3',4'-diethylphenyl) butanoic acid (23.3 g; 0.106 mole) maybe cyclised by stirring at 100° C with 80% sulphuric acid (115 ml) for 11/2 hours. After dilution, extraction into ether, and distillation 15.83 g (74%) of the tetralone was obtained.

1. extractionAfter dilution, extraction into ether
2. distillationdistillation 15.83 g (74%) of the tetralone
3. customwas obtained