barium dihydroxide; diphenyl phosphoryl azide; triethylamine 1.) toluene, 80 deg C, 8 h, 2.) dioxane, water, reflux, 8 h; Yield given. Multistep reaction;

diphenyl phosphoryl azide; triethylamine in toluene T=80°C; 8 h;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11342938', constants.ctx, '0')">lithium hydroxide</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587191', constants.ctx, '0')">dihydrogen peroxide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br />3&nbsp;h;&nbsp;&nbsp;Ambient temperature;&nbsp;<br /> &nbsp;