Reacción #62142

Ecuación de reacción

quinoline-2-carbaldehyde

benzoic acid methyl ester

sodium hydride

THF

→

title compound

4-(2-Quinolin-2-yl-ethyl)-benzoic acid methyl ester

Disolventes

ethanol

Condiciones de reacción

Tratamiento posterior

1. 1
   OtroThe reaction mixture was quenched with brine
2. 2
   Extracciónextracted with chloroform, dried magnesium sulfate
3. 3
   Filtraciónfiltered
4. 4
   Concentraciónconcentrated
5. 5
   Otroto provide the crude alkene
6. 6
   workup.WAITAfter 40 min
7. 7
   Filtraciónthe reaction mixture was filtered through celite and
8. 8
   Concentraciónconcentrated
9. 9
   LavadoBiotage MPLC chromatography eluting with 10-20% ethyl acetate/hexane

Procedimiento

To a solution of 4-[Triphenyl-phophanyl)-methyl]-benzoic acid methyl ester (1.87 g) in THF (16 ml) under N2 atmosphere at 0° C. was added sodium hydride (165 mg (60%)). After 30 min, quinoline-2-carbaldehyde (0.50 g) was added and the reaction stirred at ambient temperature for 2 h. The reaction mixture was quenched with brine, extracted with chloroform, dried magnesium sulfate, filtered and concentrated to provide the crude alkene. The crude product was placed on a parr shaker in ethanol (15 ml) with palladium hydroxide (200 mg) as the catalyst under 10 PSI of H2. After 40 min, the reaction mixture was filtered through celite and concentrated. Biotage MPLC chromatography eluting with 10-20% ethyl acetate/hexane provided the title compound. MS: (M+H m/z=292.1).

Fuente