Diisopropylethylamine → HCID 23577267, compound

Participants

Reaction Steps

A solution of 2-chloro-3-fluoropyridine (prepared in a manner similar to that described by W. J. Link, R. F. Borne and F. L. Setliff, J. Heterocyclic Chem. 4, 641–3, 1967) (131 mg 1 mmol), benzyl 4-(aminomethyl)-piperidine-1-carboxylate (EXAMPLE 13, STEP 1) (248 mg, 1 mol) and diisopropylethylamine (129 mg, 1 mmol) were heated to reflux in 2-methoxyethanol for 2 days under nitrogen. The reaction mixture was concentrated, partitioned between ethyl acetate and water, the organic layer washed with brine, dried over anhydrous sodium sulfate and solvent evaporated to give the crude product purified by chromatography on silica. M.S. (M+1): 344.3

Provenance & Evidence