1,7-Bis(4-nitrophenoxybutyl)-1,1,3,3,5,5,7,7-octamethyltetrasiloxane → 1,7-Bis(4-aminophenoxybutyl)-1,1,3,3,5,5,7,7-octamethyltetrasiloxane

Participants

Reaction Steps

2.26 g of the above 2b (3.38 mmol) and 15 mL of a 10 wt % Pd/C ethyl acetate solution (0.0209 g) were mixed, and stirred for 2 days in a hydrogen atmosphere at room temperature. The solution was filtrated by Celite and then concentrated to obtain a colorless oily material of 1,7-bis(4-aminophenoxybutyl)-1,1,3,3,5,5,7,7-octamethyltetrasiloxane (3c) (2.05 g, 99% of yield) represented by the following formula. Various measurements were carried out with regard to the obtained 1,7-bis(4-aminophenoxybutyl)-1,1,3,3,5,5,7,7-octamethyltetrasiloxane (3c), and results are shown below.

Provenance & Evidence