Water → 5-Ethyl-N-methyl-2-pyridinamine

Temperatur

-78 °C

A solution of 5-ethylpyridin-2-amine (330 mg, 2.70 mmol) in THF (10 mL) was cooled to −78° C. and n-BuLi (1.2 mL, 3.0 mmol) was added. The reaction stirred at −78° C. for 30 min, and then MeI (423 mg, 2.97 mmol) was added. The reaction was stirred for 2 h while warming to r.t. Water (10 mL) was added, and the solution was extracted with EtOAc (20 mL). The organic layer was dried (Na2SO4) and concentrated. The residue was purified by silica gel chromatography (PE:EtOAc=5:1) to give 35 mg (9%) of the title compound as a yellow oil. [M+H] Calc'd for C8H12N2, 137. Found, 137.

1. stirringThe reaction was stirred for 2 h
2. temperaturewhile warming to r.t
3. extractionthe solution was extracted with EtOAc (20 mL)
4. dry with materialThe organic layer was dried (Na2SO4)
5. concentrationconcentrated
6. customThe residue was purified by silica gel chromatography (PE:EtOAc=5:1)

ORD-Eintrag

ord-335435bb2e8c4f4d881559413a5cdb70

Quelldatensatz

uspto-grants-2016_09

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09447046B2