1: 93 percent / Zn / acetic acid / 14 h / Ambient temperature 2: 42 percent / hydroxylamine-O-sulphonic acid, formic acid / 10 h / Heating View Scheme

1.1: 93 percent / Zn; AcOH / 14 h / 20 °C 2.1: 70 percent / lithium (S,S')-α,α'-dimethylbenzamide / tetrahydrofuran; hexane / 0.17 h / -100 °C 3.1: O3 / CH2Cl2; methanol / 0.67 h / -78 °C 3.2: Me2S / CH2Cl2; methanol / 12 h / -78 - 20 °C 3.3: NaBH3CN; AcONH4 / methanol / 12 h / 20 °C View Scheme

zinc in acetic acid 14 h; Ambient temperature;

<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, '8973685', constants.ctx, '0')">zinc</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '956581', constants.ctx, '0')">trichlorophosphate</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1696894', constants.ctx, '0')">diethyl ether</a> <br />T=20&deg;C;&nbsp;20&nbsp;h;&nbsp;<br /> &nbsp;