Tetrahydrofuran → HCID 11137946, compound

Participants

Reaction Steps

To a solution of 2-bromo-3-methylpyridine (10.36 g; 60.2 mmol) in 120 mL of THF at −100° C. was added dropwise a 1.6 M solution of n-BuLi (65.6 mmol). After 20 min of stirring at that temperature, 1-formylpiperidine (7.65 g) in 10 mL of THF was added and the solution was warmed to r.t.. After 30 min of stirring at r.t., triethyl phosphonoacetate (13.7 mL; 69.1 mmol) was added dropwise below 30° C. After 1 h of stirring, the mixture was quenched with NH4OAc (25%) and extracted with EtOAc. The solvent was removed and the crude oil was purified by silica gel chromatography (25% EtOAc in hexane) to yield 10.32 g of the title compound.

Provenance & Evidence