Silicon assisted diversified reaction of a β-silylmethylene malonate with dimethylsulfoxonium methylide

Reaction of dimethylsulfoxonium methylide with a β-silylmethylene malonate gives diversified products, cyclopropane, cyclobutane or allyl and homoallyl silanes depending upon the stoichiometry of the reactants and reaction conditions. Contrary to this, reaction of a β-arylmethylene malonate gives only the cyclopropane product. The product(s) formed are unique and the silicon group played a crucial role either by assisting and/or by participating in the process.

Graphical abstractConditions have been established for the reaction of dimethylsulfoxonium methylide with a β-silylmethylene malonate to give a cyclopropane or a cyclobutane or an allylsilane with high selectivity. The silicon group played a crucial role in the reaction either by assisting and/ or by participating in the process.Figure optionsDownload full-size imageDownload as PowerPoint slide