反应详情

A solution of 2,4-dimethylthiazole-5-carbaldehyde (1.07 g, 7.58 mmol) in THF (12 mL) was cooled to 0° C. Isopropyl magnesium chloride LiCl complex (1.3 M in THF, 6 mL, 8.8 mmol) was then added dropwise. After 30 minutes, the reaction mixture was quenched with aqueous NH4Cl solution and the aqueous portion was extracted with EtOAc (3×50 mL). The combined organics were washed with brine, dried over MgSO4, filtered and concentrated to afford an orange oil. Chromatography on silica gel (5% acetone-DCM increasing to 30% acetone) provided the title compound as a light amber oil.

1. customthe reaction mixture was quenched with aqueous NH4Cl solution
2. extractionthe aqueous portion was extracted with EtOAc (3×50 mL)
3. washThe combined organics were washed with brine
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. concentrationconcentrated
7. customto afford an orange oil