1,4-Diphenyl-1,3-butadiene → HCID 73993292, compound

Participants

Reaction Conditions

Reaction Steps

As in Example 1, 1,4-diphenyl-1,3-butadiene (2.00 g, 9.70 mmol), trichlorosilane (5.25 g, 38.76 mmol), tetrabutylphosphonium chloride (0.29 g, 0.98 mmol) and 5 mL of toluene (solvent) were added in a 25 mL stainless steel tube under nitrogen atmosphere. After sealing the cylinder with a cap, the reactor was maintained at 180° C. for 8 hours. After removing the solvent and unreacted trichlorosilane and tetrachlorosilane through simple distillation, this reaction mixture was distilled under reduced pressure to separate the catalyst and the product. The product was recrystallized from 10 mL of n-hexane for 4 days to yield 1.51 g (yield: 51%) of 2,5-diphenyl-1,1-dichlorosilacyclo-3-pentene and 1.20 g (yield: 26%) of 1,4-bis(trichlorosilyl)-1,4-diphenyl-2-butene.

Provenance & Evidence