Construction of medium- and large-sized cyclic .beta.-keto esters (or nitriles) via one-pot three-carbon ring expansion of carbocyclic .beta.-keto esters and its application to the synthesis of (-)-muscone
Construction of medium- and large-sized cyclic .beta.-keto esters (or nitriles) via one-pot three-carbon ring expansion of carbocyclic .beta.-keto esters and its application to the synthesis of (-)-muscone