potassium hydroxide in ethanol

1: perchloric acid / dioxane; H2O / pH 2 2: pyridine / tetrahydrofuran / 2 h / Ambient temperature 3: pyridine / 12 h / Ambient temperature 4: boric acid, silicic acid / petroleum ether 5: 1.) Et3N, 2.) CCL (Yeast) / 1.) CHCl3, RT, 5 h, 2.) heptane, n-BuOH, RT, 20 h View Scheme

sulfuric acid in isopropyl alcohol 8 h; Heating;

1: perchloric acid / dioxane; H2O / pH 2 2: pyridine / tetrahydrofuran / 2 h / Ambient temperature 3: pyridine / 12 h / Ambient temperature 4: boric acid, silicic acid / petroleum ether View Scheme

1: 59 percent / 0.4percent aq. H2SO4 / propan-2-ol / Heating 2: 68 percent / pyridine / Ambient temperature View Scheme

1: 73.4 percent / phosphocholine sodium salt / methanol / 20 h / Heating 2: 50.5 percent / fluoboric acid / CH2Cl2 / 3 h / 20 °C View Scheme

1: 92 percent / trifluoroacetic anhydride / tetrahydrofuran; CH2Cl2 / 5 h / 80 °C 2: 0.297 g / pyridine; methanol / CH2Cl2; pentane / 0.33 h / 0 - 20 °C View Scheme

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4153970', constants.ctx, '0')">sodium hydrogencarbonate</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '8156740', constants.ctx, '0')">sodium sulfite</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730800', constants.ctx, '0')">dichloromethane</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br /> <br /> <br /> &nbsp;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '4154566', constants.ctx, '0')">sodium carbonate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1730733', constants.ctx, '0')">hexane</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587155', constants.ctx, '0')">water</a> <br />T=60&deg;C;&nbsp;4&nbsp;h;&nbsp;<br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 95 percent / SnCl₄ / 70 &deg;C<br />2: 98 percent / 40percent aq. NaOH / 80 - 90 &deg;C<br /> <br /> &nbsp;