5-Chloro-9-isopropylidene-1,4-dihydro-1,4-methano-naphthalene → 5-Chloro-9-isopropylidene-1,2,3,4-tetrahydro-1,4-methano-naphthalene

Participants

Reaction Steps

170 g of 5-Chloro-9-isopropylidene-1,4-dihydro-1,4-methano-naphthalene (0.785 mol), 0.5 g of Pd 10% (0.2 mmol) and 1 liter THF were charged in an hydrogenation reactor. 19 liter Hydrogen was feed at ambient temperature; the reaction was carried out at 0.05 MPa pressure. After complete conversion, the reaction mixture was filtered off over hyflo and product solution was evaporated to give 167 g product (Purity: 92%; Yield: 90%). The product was crystallized with MeOH, filtered off and dried. Purity: 97.54%

Provenance & Evidence