Tributylamine → HCID 123897263, compound

Participants

Reaction Steps

A mixture containing 536 g (4.0 mol) of tetramethyldisiloxane, 170 g (1.0 mol) of tetrachlorosilane and 2 ml of a 25% solution of phosphonitrile chloride in methylene chloride is stirred at room temperature for 116 hours. About 1.1 ml of tri-n-butylamine are then added to deactivate the phosphonitrile chloride. The reaction mixture is stirred for 30 minutes and then subjected to fraction distillation. About 17 g of 1,1,5,5-tetramethyl-3,3-dichlorotrisiloxane are obtained at 30° to 43° C. and at 10 mbar, and 98 g of 1,1,5,5-tetra methyl-3-chloro-3-dimethylsiloxytrisiloxane are obtained at 44° to 47° C. and at 10 mbar, but the desired 1,1,5,5-tetramethyl-3,3-bis(dimethylsiloxy)trisiloxane is not obtained.

Provenance & Evidence