N-Iodosuccinimide → HCID 21705995, compound

Participants

Reaction Conditions

Reaction Steps

Cp2ZrHCl (9.141 g, 35.4 mmol) was added to a solution of 33 (3.668 g, 29.5 mmol) in THF (50 mL). The mixture was stirred for 1.5 h at 40° C., cooled to 0° C. and was then treated with N-iodosuccinimide (NIS, 7.972 g, 35.4 mmol). The reaction was allowed to warm to room temperature and after 75 min., 100 mL of saturated NaHCO3 solution was added. The mixture was extracted with ether (2×100 mL) and the combined ether solution was dried (Na2SO4), filtered and evaporated. The residue was purified on a Teledyne Isco Combiflash unit (330 g silica gel column, 0%→20% ethyl acetate/hexanes) which gave the title compound (4.558 g, 18.1 mmol, 61%).

Provenance & Evidence