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