1: With n-butyllithium in tetrahydrofuran T=0 - 23°C; Inert atmosphere; 2: With iodine in tetrahydrofuran Inert atmosphere;

<b>With</b>&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, '4546405', constants.ctx, '0')">caesium carbonate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">DMFA</a> <br />T=100&deg;C;&nbsp;6&nbsp;h;&nbsp;&nbsp;Inert atmosphere;&nbsp;<br /> &nbsp;