Dimethylformamide → HCID 67055986, compound

To a solution of sodium hydride (0.518 g, 21.0 mmol) in DMF (5 mL) at 0° C. was added dropwise a solution of methylthioglycolate (2 g, 18 mmol) in DMF (6 mL). Upon completion of addition, the reaction mixture was stirred at RT for 30 min. After this time, a solution of 3,5-dibromopyridine (4.46 g, 18 mmol) in DMF (10 mL) was added dropwise. The resulting reaction mixture was allowed stir at RT for 16 h. At the conclusion of this period, the reaction mixture was quenched by the addition of ice and the resulting slurry was extracted with ethyl acetate. The combined organic layers were dried and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (1.5% methanol in DCM) to yield methyl 2-(5-bromopyridin-3-ylthio)acetate (1.2 g, 24% yield). LCMS Method A: retention time 1.49 min; [M+1]=262.

1. additionUpon completion of addition
2. customThe resulting reaction mixture
3. stirringwas allowed stir at RT for 16 h
4. customAt the conclusion of this period, the reaction mixture was quenched by the addition of ice
5. extractionthe resulting slurry was extracted with ethyl acetate
6. customThe combined organic layers were dried
7. concentrationconcentrated under reduced pressure
8. customThe resulting residue was purified by silica gel column chromatography (1.5% methanol in DCM)

ORD record

ord-360921f1a3ff43fcac7ab44c7c279d6a

Source dataset

uspto-grants-2013_11

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08575184B2