tetrabutyl ammonium fluoride; benzoic acid in tetrahydrofuran 0.5 h; Ambient temperature;

tetrabutyl ammonium fluoride; benzoic acid

2: 57.1 percent / TBAF, benzoic acid / tetrahydrofuran / 0.5 h / Ambient temperature View Scheme

1: imidazole 2: 84 percent / H2 / Pd-C 3: 85 percent / pyridinium dichromate 4: 60 percent / LDA 5: 1) lithium hexamethyldisilazide / 1) -78 deg C 6: 1) hydrogen peroxide, 2) aqueous sodium hydrogen carbonate 7: 50 percent / TBAF, PhCOOH View Scheme

1: K2CO3 2: imidazole 3: 84 percent / H2 / Pd-C 4: 85 percent / pyridinium dichromate 5: 60 percent / LDA 6: 1) lithium hexamethyldisilazide / 1) -78 deg C 7: 1) hydrogen peroxide, 2) aqueous sodium hydrogen carbonate 8: 50 percent / TBAF, PhCOOH View Scheme

1: 84 percent / H2 / Pd-C 2: 85 percent / pyridinium dichromate 3: 60 percent / LDA 4: 1) lithium hexamethyldisilazide / 1) -78 deg C 5: 1) hydrogen peroxide, 2) aqueous sodium hydrogen carbonate 6: 50 percent / TBAF, PhCOOH View Scheme

1: 95 percent / SnCl4 2: K2CO3 3: imidazole 4: 84 percent / H2 / Pd-C 5: 85 percent / pyridinium dichromate 6: 60 percent / LDA 7: 1) lithium hexamethyldisilazide / 1) -78 deg C 8: 1) hydrogen peroxide, 2) aqueous sodium hydrogen carbonate 9: 50 percent / TBAF, PhCOOH View Scheme

hydrogenchloride in chloroform; water T=0°C; 0.5 h;