Stereoselective oxy-functionalization of gamma-silyl allylic alcohols with ozone: a facile synthesis of silyl peroxide and its reactions.

A reaction of gamma-silyl allylic alcohol and its ether with ozone provides synthetically versatile alpha-formyl silyl peroxide in good yield without normal fission of carbon-carbon double bond. Thus, the provided silyl peroxide serves as a good precursor for the stereochemically defined triol derivative via alkylation and reduction of peroxide moiety.