hydrogenchloride

1: With hydrogenchloride; sodium cyanoborohydride in ethanol; water T=20°C; pH=3; 0.5 h; 2: With sodium hydroxide in water pH=8;

1: 92 percent / NCS / dimethylformamide / 3 h / 40 °C 2: 85 percent / tetrahydrofuran / 3 h / 25 °C 3: 90 percent / MCPBA, NaHCO3 / CH2Cl2 / 2 h / 40 °C 4: 40 percent / Me3SnSnMe3, acetone / benzene / 12 h / Irradiation View Scheme

trimethylsilyl trifluoromethanesulfonate in acetonitrile T=30°C; 18 h;

trimethylsilyl trifluoromethanesulfonate in acetonitrile T=30°C; 20 h;

1: 61 percent / trimethylsilyl triflate / acetonitrile / 20 h / 30 - 35 °C 2: 28 percent / mesityl bromide, Mg / tetrahydrofuran / 1 h / 0 °C View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3595639', constants.ctx, '0')">sodium acetate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1098229', constants.ctx, '0')">methanol</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br />T=20&deg;C;&nbsp;2&nbsp;h;&nbsp;<br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '19253605', constants.ctx, '0')">4 A molecular sieve</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '969212', constants.ctx, '0')">benzene</a> <br />1&nbsp;h;&nbsp;&nbsp;Ambient temperature;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4122952', constants.ctx, '0')">sodium hydride</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a> <br />&nbsp;Yield given;&nbsp;<br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '3592982', constants.ctx, '0')">sodium methylate</a> <br /> <br /> &nbsp;