Diisopropylamine → HCID 86752140, compound

Participants

Reaction Steps

Cool diisopropylamine dissolved in THF (60 mL) to 0-5° C. Add n-butyl lithium(39 mL, 97.99 mmol.) and stir the reaction at that temperature for 30 min. Canulate this reaction mixture to a cooled solution of N-(1,1-dimethylethyl)-2-bromo-3-methyl pyridine carboxamide (9.91 g, 97.99 mmol) in dry THF (250 mL) (−70° C.). Stir for 0.5 h then add 3-chlorobenzyl bromide(11.4 g, 55.31 mmol) dissolved in 50 mL of THF. Stir the reaction mixture for 0.5 h. Quench the reaction with water and extract the products twice with EtOAc. Dry the organic phase over Na2SO4, filter and chromatograph on silica gel column eluting with 3% MeOH solution in CH2Cl2 to give the title compound (15 g, Yield 60%).

Provenance & Evidence