1: 27 percent Chromat. / zinc, copper / dimethylformamide; H2O / 10 h / 70 °C 2: 5 percent Chromat. / zinc, copper / H2O; dimethylformamide / 5 h / 90 °C View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4122947', constants.ctx, '0')">copper</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '4879862', constants.ctx, '0')">1-trifluoromethyl-2,3,5,6-tetrafluoro-4-(2,2,2-trifluoroethyl)benzene</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8973685', constants.ctx, '0')">zinc</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '605365', constants.ctx, '0')">N,N-dimethyl-formamide</a> <br />T=50&deg;C;&nbsp;5&nbsp;h;&nbsp;&nbsp;Yield given. Yields of byproduct given. Title compound not separated from byproducts;&nbsp;<br /> &nbsp;