tetrabutyl ammonium fluoride

<b>Multi-step reaction with 3 steps<br /> </b>1: 1.) K / 1.) THF, 15 min, reflux; 12 h, RT; 2.) 12 h, RT<br />2: 95 percent / NBS, hydroquinone / acetone / 1 h / Heating<br />3: 1.) BuLi / 1.) hexane, RT, 4 h; 2.) 30 min<br /> <br /> &nbsp;