Organic Compounds with Pentavalent Phosphorus. VIII.1Cyclic Unsaturated Oxyphosphoranes from the Reaction of Tertiary Phosphite Esters with o-Quinones and with α-Diketones
<b>Organic Compounds with Pentavalent Phosphorus. VIII.</b><sup>1</sup> <b>Cyclic Unsaturated Oxyphosphoranes from the Reaction of Tertiary Phosphite Esters with <b><i>o</i></b>-Quinones and with α-Diketones</b>