ALKOXYLATION OF HYDRIDOPHOSPHORANE .3. FURTHER-STUDIES ON THE REACTION OF HYDRIDOPHOSPHORANE WITH BENZENESULFENIC ESTERS

The bicyclic hydridophosphorane 2 was shown to undergo alkoxylation re action with a series of benzenesulfenic esters 3 to give the correspon ding isolable alkoxyphosphoranes in preparatively useful amounts (72-8 9%). The reaction pathway is interpreted in terms of a two-step proces s: the first step involves formation of alkoxyphosphorane 4 and thiaph osphorane 5, the second step involves the reaction of 5 with alcohol, converting to 4.