bromine; triphenylphosphine in dichloromethane 12 h; Ambient temperature; Yield given. Yields of byproduct given;

iodine; triphenylphosphine in dichloromethane 72 h; Ambient temperature; Yield given. Yields of byproduct given;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '8128138', constants.ctx, '0')">potassium hydroxide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br />T=-20 - 30&deg;C;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1: acetone / 46 h / 80 &deg;C / |Inert atmosphere<br />2: water / ethanol / 2 h / 80 &deg;C / |Inert atmosphere<br />3: potassium hydroxide / methanol; tetrahydrofuran / 11 h / 20 - 80 &deg;C / |Inert atmosphere<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: water / ethanol / 2 h / 80 &deg;C / |Inert atmosphere<br />2: potassium hydroxide / methanol; tetrahydrofuran / 11 h / 20 - 80 &deg;C / |Inert atmosphere<br /> <br /> &nbsp;