Carbon Dioxide → HCID 69170253, compound

Participants

Reaction Steps

To a solution of Example 11A (3.27 g, 15.8 mmol) in tetrahydrofuran (30 mL) was added n-butyl lithium (2.5 M in hexanes, 6.50 mL, 16.3 mmol, 1.0 eq.) at −78° C. The mixture was stirred for 1 hour. Tributyltin chloride (4.40 mL, 16.3 mmol, 1.0 eq) was then added at −78° C. (The dry ice bath was removed and the mixture was stirred for 1 hour. The reaction was quenched with water (100 mL). The aqueous layer was extracted with ether and the organic layer washed with brine, dried over MgSO4 and concentrated. The residue was purified on silica gel eluting with ethyl acetate: hexane gradient (0-20%) to give the title compound (7.07 g, 92%).

Provenance & Evidence