反应详情

With 4-nitrobenzylphosphonic acid and 1,4-butanediol, the same procedure as in Reference Example 11 was followed, to yield 2-(4-nitrobenzyl)-1,3,2-dioxaphosphepane-2-oxide, which was then recrystallized from ethanol-hexane to yield colorless needles having a melting point of 136° to 137° C.