Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A one step synthesis of tetraphosphonium salts of the saturated and ethylenic macrocycles containing CC bridges has been carried out in good yield. The cleavage of the carbon bridges during basic hydrolysis is highly regioselective. ... A one step synthesis of tetraphosphonium ...