Reaktion #1824305

Reaktionsgleichung

trimethoxysilane

allyl glycidyl ether

trimethoxysilane

→

3-glycidoxypropyltrimethoxysilane

Ausbeute 86.0%

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe exotherm of the reaction was controlled with an ice bath
2. 2
   Temperaturto maintain the temperature at 90°-95° C
3. 3
   workup.ADDITIONThe addition
4. 4
   Temperaturtemperature was maintained at 90°-95° C. for another hour

Vorschrift

The apparatus of Example B was charged with 136.8 gm (1.2 mol) of allyl glycidyl ether, 2.6 gm of a carboxylic acid promoter and 0.14 ml of 10% chloroplatinic acid solution. The addition funnel was charged with 122.8 gm (1.0 mol) of trimethoxysilane. The contents of the flask were heated to 90° C. and dropwise addition of trimethoxysilane was begun. The exotherm of the reaction was controlled with an ice bath to maintain the temperature at 90°-95° C. The addition was completed in 25 minutes and temperature was maintained at 90°-95° C. for another hour. Analysis by gas chromatography showed an 86% yield of 3-glycidoxypropyltrimethoxysilane. This example demonstrates a standard preparation of 3-9lycidoxypropyltrimethoxysilane using chloroplatinic acid solution as the catalyst.

Quelle