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

HRID 1789256Notes

Reaction equation

HRID 1789256 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) diphenylphosphine (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° C. at 0.20 mm.

Workup

  1. customwas reacted for 22 hours in the manner

Sources & evidence

ORD record
ord-909b81726ae141ef9ae0979fc054a554
Source dataset
uspto-grants-1987_08
Patent number
US04687866

Reaction notes

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