Water → HCID 18976807, compound

Participants

Reaction Steps

In a 1-liter three-necked flask equipped with a stirring device and a nitrogen substituting device, 16.4 g of 1,1-bis(4-(4-(4-nitrophenylmethyl)phenylmethyl)phenyl)methane was dissolved in 500 milliliters of tetrahydrofuran, 1.7 g of a Pd-C catalyst (a 5% product, containing 54.8% of water) was added and contacted with hydrogen gas while cooled with water at a normal pressure and then stirred. After absorption of hydrogen was stopped, the catalyst was filtered off and the objective product adhered to a residual layer of the catalyst was washed with chloroform thoroughly and then the filtrate was concentrated. By recrystallizing the concentrate from a chloroform solvent, 11.0 g of a diamino compound according to the invention, that is, 1,1-bis(4-(4-(4-aminophenylmethyl)phenylmethyl)phenyl)methane was obtained as crystals. Melting point was from 192.0° to 193.0° C.

Provenance & Evidence