Methoxymethyl-triphenylphosphonium chloride → HCID 22631197, compound

Participants

Reaction Conditions

Reaction Steps

Sodium hexamethyldisilazide (10.80 mL, 10.80 mmol, 1.0M in THF) was added to a suspension of methoxymethyltriphenylphosphonium chloride (3.72 g, 10.80 mmol) in THF (20 mL) at −10° C., and the red-orange mixture was stirred for 15 min at −10° C. A solution of 4-pyrazinylbenzaldehyde (1.00 g, 5.43 mmol) prepared as described in reference example 17) in THF (3 mL) was added dropwise, and stirring was continued at −10° C. for 1 h. The reaction mixture was quenched with sat. aq. NH4Cl, extracted with ethyl acetate, the organic layer dried with Na2SO4, and concentrated in vacuo. Purification by medium pressure liquid chromatography (SiO2, 3:1 hexane/ethyl acetate) yielded 820 mg (71%) of the title compound (E:Z=1:1). MS 213 (M+H)+.

Provenance & Evidence