sulfuric acid in tetrahydrofuran 4 h; Ambient temperature; Yield given. Yields of byproduct given;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '113915', constants.ctx, '0')">N-chloro-succinimide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '635760', constants.ctx, '0')">toluene</a> <br />T=50&deg;C;&nbsp;3&nbsp;h;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '113915', constants.ctx, '0')">N-chloro-succinimide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '635760', constants.ctx, '0')">toluene</a> <br /> <br /> &nbsp;