n-butyllithium in tetrahydrofuran; hexane 1) -70 -> -80 deg C, 1 h, 2) r.t., 12-16 h;

n-butyllithium in tetrahydrofuran; hexane 1) -70 -> -80 deg C, 1 h, 2) r.t., 12-16 h;

<b>Multi-step reaction with 2 steps<br /> </b>1: 59 percent / 1) Ag-tetrafluoroborate, 2) hexafluorophosphoric acid / 1) CH₃NO₂, 60-65 deg C, 9 d, 2) 2-propanol<br />2: 73 percent / 13-14N NH₃ / H₂O / 0 &deg;C<br /> <br /> &nbsp;