cesium fluoride in acetonitrile T=23°C; 16 h; Inert atmosphereDarkness;

1: 46 percent / CsF / acetonitrile / 16 h / 20 °C 2: K2CO3; nBu4NI / acetonitrile / 28 h / 20 °C View Scheme

<b>Multi-step reaction with 2 steps<br /> </b>1.1: diethyl ether / 3 h / 0 - 23 &deg;C / Inert atmosphere<br />1.2: 1 h / 23 &deg;C / Inert atmosphere<br />2.1: acetonitrile / 16 h / 23 &deg;C / Inert atmosphere; Darkness<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1.1: potassium carbonate / N,N-dimethyl-formamide / 14 h / 23 &deg;C<br />2.1: diethyl ether / 3 h / 0 - 23 &deg;C / Inert atmosphere<br />2.2: 1 h / 23 &deg;C / Inert atmosphere<br />3.1: acetonitrile / 16 h / 23 &deg;C / Inert atmosphere; Darkness<br /> <br /> &nbsp;