Water → HCID 22316031, compound

Participants

Reaction Steps

1,1-bis[4-(4-nitrobenzyl)phenyl]cyclohexane 98.93 g was dissolved in 1100 ml of tetrahydrofuran, a Pd--C catalyst (5% purity, water content 55.9%) 9.8 g was added, and the mixture was cooled with water at atmospheric pressure and contacted with hydrogen gas with stirring. After the absorption of hydrogen stopped, the catalyst was filtered off and the solution was concentrated. The concentrate was recrystallized with toluene solvent to obtain 71.71 g of 1,1-bis[4-(4aminobenzyl)phenyl]cyclohexane which is a diamino compound of the present invention. The melting point was 154.4°-155.5° C.

Provenance & Evidence