1: 4,4,4-trifluoro-1-(N-methoxy-N-methylamino)-1-phenyl-1-(trimethylsiloxyl)-2-butyne With tetrabutyl ammonium fluoride in tetrahydrofuran; diethyl ether T=-15°C; 0.166667 h; 2: pentafuoromethyl p-trifluoroethylphenyl ketone in tetrahydrofuran; diethyl ether T=20°C; 12 h;

Stage #1: <a href="#" onclick="return RXDsubstances(event, this, '2045666', constants.ctx, '0')">p-trifluoromethylphenyl bromide</a> <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209227', constants.ctx, '0')">n-butyllithium</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1696894', constants.ctx, '0')">diethyl ether</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '1730733', constants.ctx, '0')">hexane</a> <br />T=-78 - 0&deg;C;&nbsp;1&nbsp;h;&nbsp;<br />Stage #2: <a href="#" onclick="return RXDsubstances(event, this, '1779789', constants.ctx, '0')">ethyl Pentafluoropropionate</a> <b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '2349612', constants.ctx, '0')">boron trifluoride diethyl etherate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1696894', constants.ctx, '0')">diethyl ether</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '1730733', constants.ctx, '0')">hexane</a> <br />T=-78&deg;C;&nbsp;3&nbsp;h;&nbsp;<br /> &nbsp;

&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1696894', constants.ctx, '0')">diethyl ether</a> <br /> <br /> &nbsp;