Cyclohexyldimethoxymethylsilane (CMMS,Donor-C) CAS.17865-32-6

This product is an additive for the propylene polymerization highly efficient carrier catalyst. In its catalyst system, it is a good external electron donor, which plays an important role in improving catalyst activity; stereospecificity and prolonging active life.

Cyclohexyldimethoxymethylsilane is a chemical compound with the molecular formula C10H22O2Si. It is an organosilicon compound that contains a cyclohexyl group, two methoxy groups, and a dimethoxymethylsilyl group. This compound is commonly used as a reagent in organic synthesis, particularly in the protection of alcohols and carboxylic acids.

Cyclohexyldimethoxymethylsilane is a clear liquid that has a boiling point of 196°C. It is soluble in common organic solvents such as ethanol, acetone, and dichloromethane. This compound is typically stored under an inert atmosphere to prevent degradation.

In organic synthesis, Cyclohexyldimethoxymethylsilane can be used as a protective group for alcohols and carboxylic acids. When reacted with an alcohol, the silyl ether product is formed, which can be later deprotected in the presence of fluoride ions to regenerate the original alcohol. This process is useful in controlling the selectivity of reactions and protecting functional groups from unwanted reactions.