1: diphenylphosphoryl azide, DBU / toluene / 0-5 deg C -> room temperature 2-3 h, 16 h 2: LiAlH4 / tetrahydrofuran; toluene / 8 h / 23 °C 3: 98 percent / HCl / toluene / 1.33 h / 100 °C 4: 80 percent / DBU / acetonitrile / 1 h View Scheme

1: diphenylphosphoryl azide, DBU / toluene / 0-5 deg C -> room temperature 2-3 h, 16 h 2: LiAlH4 / tetrahydrofuran; toluene / 8 h / 23 °C View Scheme

1: diphenylphosphoryl azide, DBU / toluene / 0-5 deg C -> room temperature 2-3 h, 16 h 2: LiAlH4 / tetrahydrofuran; toluene / 8 h / 23 °C 3: 98 percent / HCl / toluene / 1.33 h / 100 °C View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '10775048', constants.ctx, '0')">titanium(IV) isopropylate</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '4718783', constants.ctx, '0')">N,N'-((1R,2R)-cyclohexane-1,2-diyl)bis(1,1,1-trifluoromethanesulfonamide)</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '635760', constants.ctx, '0')">toluene</a> <br />T=0&deg;C;&nbsp;3&nbsp;h;&nbsp;<br /> &nbsp;