Tetrabutylammonium Fluoride → Di-tert-butyl (1S,2S,5R,6S)-2-[(tert-butoxycarbonyl)amino]bicyclo[3.1.0]hex-3-ene-2,6-dicarboxylate

Participants

Reaction Steps

Add 1M tetrabutylammonium fluoride in tetrahydrofuran (3.84 mL, 3.84 mmol) to di-tert-butyl (1S,2S,4S,5R,6R)-2-[(tert-butoxycarbonyl)amino]-4-[(methylsulfonyl)oxy]bicyclo[3.1.0]hexane-2,6-dicarboxylate (600.00 mg, 1.22 mmol) in tetrahydrofuran (2.03 mL) and heat at reflux for 3 hours. The reaction is then cooled to room temperature, diluted with water, and extracted with ethyl acetate, washed with brine, dried over sodium sulfate, filtered, and concentrated under reduced pressure to give a residue. The residue is purified by flash chromatography eluting with 5-75% ethyl acetate in hexanes to give the title compound (0.23 g, 0.58 mmol, 48%).

Provenance & Evidence