1: 98 percent / DMAP / pyridine 2: 99 percent / lithium aluminum hydride / diethyl ether 3: 84 percent / imidazole; DMAP / dimethylformamide 4: 100 percent / aq. acetic acid / dimethylformamide 5: 92 percent / DMAP / pyridine 6: 86 percent / sodium borohydride / methanol 7: 95 percent / sodium azide / dimethylformamide 8: 90 percent / DMAP / pyridine 9: 98 percent / hydrogen / Pd/C / methanol 10: 71 percent / potassium tert-butoxide / dimethylformamide; benzene 11: 57 percent / tetrabutylammonium fluoride / tetrahydrofuran 12: 93 percent / carbon tetrabromide; triphenylphosphine / CH2Cl2 13: 80 percent / potassium tert-butoxide / dimethylsulfoxide 14: 95 percent / ozone / methanol View Scheme