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

HRID 1789265Notes

Reaction equation

HRID 1789265 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° C. at 0.20 mm.

Workup

  1. customwas reacted for 22 hours in the manner

Sources & evidence

ORD record
ord-32c6ed48ad464867977d13f421d0483d
Source dataset
uspto-grants-1987_08
Patent number
US04687874

Reaction notes

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