Na2S*9H2O in 1-methyl-pyrrolidin-2-one T=185 - 195°C; 12 h; Inert atmosphere;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '11405916', constants.ctx, '0')">copper(l) iodide</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '11604118', constants.ctx, '0')">tetrakis(triphenylphosphine) palladium⁽⁰⁾</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '605284', constants.ctx, '0')">diisopropylamine</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />&nbsp;Inert atmosphereReflux;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 96 percent / H₅IO₆; H₂SO₄ <br />2: 62 percent / Pd(PPh₃)4; CuI; diisopropylamine / tetrahydrofuran / 30 h / Heating<br /> <br /> &nbsp;