ORGANOPHOSPHOROUS COMPOUNDS .15. THE REACTION OF 2,4-BIS(4-METHOXYPHENYL)-1 ,3,2,4-DITHIADIPHOSPHETANE-2,4-DISULFIDE (LAWESSONS REAGENT) WITH AROMATIC DIHYDROXY COMPOUNDS - SIMPLE NEW ROUTE TO 1,3,2-DIOXAPHOSPHOLANE-2-SULFIDE

2,4-Bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide (Lawesson's Reagent) and its p-phenoxy derivative react with o-dihydroxybenzene derivatives, dihydroxy naphthalene and 2,2-dihydroxybiphenyl in toluene at reflux temperature to give 1,3,2-dioxaphospholane-2-sulfide derivatives, 3a-f, 8a,b and 11a,b respectively. The structure of the products has established either chemically using methanolysis and methylation or spectroscopically Also, analytical data has been used. A mechanistic considerations on the formation of the above products are discussed