Dimethyldivinylsilane → 1,1′-[(Dimethylsilylene)di-2,1-ethanediyl]bis[1,1-diphenylphosphine]

HRID 1982256Notes

Reaction equation

HRID 1982256 reaction equation
[CH3:1][Si:2]([CH3:7])([CH:5]=[CH2:6])[CH:3]=[CH2:4].[C:8]1([PH:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1>>[C:15]1([P:14]([CH2:4][CH2:3][Si:2]([CH2:5][CH2:6][P:14]([C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)([CH3:7])[CH3:1])[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1

Participants

3

Reactant 2

HCID 66339DimethyldivinylsilaneHCID 70017Diphenylphosphine

Product 1

HCID 140077991,1′-[(Dimethylsilylene)di-2,1-ethanediyl]bis[1,1-diphenylphosphine]

Procedure

A mixture of 9.0 g (0.8 mole) dimethyl divinyl silane and 32.7 g (0.176) diphenyl phosphine (10% excess over equivalent amounts) was reacted for 22 hours in the manner described in Example 1. The reaction mixture was fractionated in vacuo to obtain minor amounts of the clear, colorless, slightly viscous liquid monoadduct, and major amounts of the clear, colorless, highly viscous liquid diadduct, i.e. the desired bis-(diphenylphosphinoethyl)dimethyl silane. The distillation yield of desired product was 84%. The bis-diphenylphosphinoethyl)dimethyl silane product had a boiling point of 238°-239° at 0.20 mm.

Workup

  1. customwas reacted for 22 hours in the manner

Sources & evidence

ORD record
ord-36cc79cf0c604df0badf0848b7eed40a
Source dataset
uspto-grants-1986_06
Patent number
US04595753

Reaction notes

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