In-situ Organomagnesium synthesis of allyl(alkoxy)silanes from allylchloride and Methylalkoxysilanes

Abstract

Despite the widespread use of allylsilanes in organic synthesis, polymer and materials chemistry, the availability of key allyl-containing organosilicon precursors, such as allyl(alkoxy)dimethylsilane and 1,3-diallyl-1,1,3,3-tetramethyldisiloxane, remains limited due to complex and expensive synthesis methods. An effective method for obtaining these compounds through the organomagnesium synthesis reaction of dimethyldialkoxysilanes with allyl chloride in the presence of magnesium (Grignard reaction) is presented. The method is simple and allows obtaining target products in ten-gram or more quantities with good yields and high purity, eliminating the need to use expensive chlorosilanes or harsh conditions.