Preparation of pentaerythritol allyl ethers in dimethylsulfoxide

Claim 1

A PROCESS FOR THE PREPARATION OF AN ETHER SELECTED FROM THE GROUP CONSISTING OF THE TETRAALLYL ETHER OF PENTAERYTHRITOL, THE TETRAALLYL ETHER OF DIENTAERYTHRITOL, THE PENTAALLYL ETHER OF DIPENTAERYTHRITOL AND THE HEXAALLYL ETHER OF DIPENTAERYTHRITOL, WHICH COMPRISES CONTACTING, IN THE PRESENCE OF AN OXIDE CATALYST SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL OXIDES AND ALKALINE EARTH METAL OXIDES AND AT A TEMERATURE OF ABOUT 50*C. TO ABOUT 110* C., AN ALLYL HALIDE WITH A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRITOL AND DIPENTAERYTHRITOL, FROM ABOUT FOUR TO ABOUT EIGHT MOLES OF SAID ALLYL HALIDE BEING EMPLOYED FOR EVERY MOLE OF SAID POLYHYDRIC ALCOHOL EMLOYED IN THE PRESENCE OF DIMETHYLSULFOXIDE AS THE REACTION SOLVENT, WHEREIN THE AMOUNT OF SAID OXIDE CATALYST UTILIZED IS AT LEAST TWICE THE AMOUNT REQUIRED AS CATALYST AND THE EXCESS OXIDE CATALYST REMOVES THE WATER OF REACTION BY REACTION THEREWITH.