Lithium Hexamethyldisilazide → HCID 86700608, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 3-chloro-N-methyl-1-(pyridin-3-yl)-1H-pyrazol-4-amine (0.20 g, 0.96 mmol) in THF (10 mL) was cooled to a temperature of about −78° C. LHMDS (1 M solution in hexanes, 1.0 mL, 1.00 mmol) was added, and the solution was stirred at a temperature of about −78° C. for 15 minutes. A solution of (1R,4S)-tert-butyl 3-oxo-2-azabicyclo[2.2.1]hept-5-ene-2- carboxylate (0.20 g, 0.96 mmol) dissolved in THF (3 mL) was added to the solution at a temperature of about −78° C. in one portion. After stirring for one hour at a temperature of about −78° C., the cooling bath was removed and the reaction warmed to a temperature of about 20° C. After stirring for an additional five minutes, acetic acid (AcOH, 0.1 mL) was added to the solution. The reaction mixture was concentrated and purified via silica gel chromatography eluting with EtOAc/hexanes to give the title compound F109 as a white solid (0.25 g, 59%).

Provenance & Evidence