tetrabutyl ammonium fluoride T=25°C; 4 h;

1: 34 percent / NaOBr, LiBr / dimethylsulfoxide / 1 h 2: 68 percent / molten tetrabutylammonium fluoride / 4 h / 25 °C View Scheme

1: 20 percent / 1.) sodium methoxide; 2.) NH4Cl / methanol / 25 °C / 1.) 48 h; 2.) 24 h 2: 34 percent / NaOBr, LiBr / dimethylsulfoxide / 1 h 3: 68 percent / molten tetrabutylammonium fluoride / 4 h / 25 °C View Scheme

1: n-tetrabutylammonium azide / acetonitrile / 24 h / 25.5 °C / in the dark; var. time 2: 20 percent / 1.) sodium methoxide; 2.) NH4Cl / methanol / 25 °C / 1.) 48 h; 2.) 24 h 3: 34 percent / NaOBr, LiBr / dimethylsulfoxide / 1 h 4: 68 percent / molten tetrabutylammonium fluoride / 4 h / 25 °C View Scheme