Triphenylphosphine → HCID 131723727, compound

Participants

Reaction Steps

To a solution of (±)-cis-3-(tert-butyl-dimethyl-silanyloxy)-cyclopentanol (from Example 51 above) (2.6 g, 12.02 mmol) and triphenyl phosphine (Aldrich, 7.9 g, 30.12 mmol) in dry THF (100 mL) at 0° C. was added dropwise diethyl azodicarboxylate (Aldrich, 4.8 mL, 30.48 mmol). After stirring for 15 minutes thioacetic acid (Aldrich, 2.2 mL, 30.78 mmol) was added dropwise. The reaction mixture was allowed to reach room temperature slowly and stirred overnight. Then, the reaction mixture was concentrated and the residue was purified by flash chromatography (silica gel, 0-5% ether in hexanes gradient) to give (±)-trans-thioacetic acid-[3-(tert-butyl-dimethyl-silanyloxy)-cyclopentyl] ester as a light yellow liquid. (Yield 2.36 g, 72%).

Provenance & Evidence