Aminopropyltrimethoxysilane → HCID 131721809, compound

Participants

Reaction Conditions

Reaction Steps

1482 parts (8.27 equiv.) of 3-aminopropyltrimethoxysilane were added to a 5 liter flask fitted with agitator, thermocouple, nitrogen inlet and addition funnel with condenser. 1423.2 parts (8.27 equiv.) of diethyl maleate were added dropwise through the addition funnel over a period of 2 hours. The temperature of the reactor was maintained at 25° C. during the addition. The reactor was maintained at 25° C. for an additional 5 hours at which time the product was poured into glass containers and sealed under a blanket of nitrogen. After one week the unsaturation number was 0.6 indicating the reaction was ~99% complete. The product, N-(3-trimethoxysilylpropyl) aspartic acid diethyl ester, had a viscosity of 11 mPa.s at 25° C.

Provenance & Evidence