反应详情

114 g (0.5 mol) of 2,2-bis-(4-hydroxyphenyl)-propane, 90 g (1.6 mol) of isobutylene and 25 g of an aluminum silicate are stirred in an autoclave for 6 hours at around 300° C. under the naturally prevailing pressure. The catalyst is then filtered of while still hot. 41.8 g (44% of the theoretical) of 5-hydroxy-1,1,3,3-tetramethyl indane are isolated by fractional distillation in vacuo from the 170.9 g of reaction mixture.

1. filtrationThe catalyst is then filtered of while still hot