反应详情

温度

-20 °C

In a 25 mL round-bottomed flask, N1,N1-dimethyl-N2-(1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridin-6-yl)ethane-1,2-diamine (405 mg, 1.12 mmol) was combined with DMF (14.9 ml) to give a colorless solution. The reaction mixture was cooled to −20° C. and stirred for 5 min. Chlorosulfonyl isocyanate (477 mg, 293 μl, 3.37 mmol, Eq: 3) in acetonitrile (14.9 ml) was added dropwise and the resultant cooled reaction was stirred at −20° C. and stirred for 3 hrs The reaction mixture was poured into 25 mL sat NaCl and extracted with EtOAc (3×20 ml). After evaporation, crude material was purified by flash chromatography (silica gel, 12 g, 5% to 10% MeOH in DCM) to obtain 6-(2-(dimethylamino)ethylamino)-1H-pyrrolo[2,3-b]pyridine-3-carbonitrile (211 mg, 82%).

1. customto give a colorless solution
2. temperaturethe resultant cooled
3. customreaction
4. stirringwas stirred at −20° C.
5. stirringstirred for 3 hrs The reaction mixture
6. additionwas poured into 25 mL
7. extractionextracted with EtOAc (3×20 ml)
8. customAfter evaporation, crude material
9. customwas purified by flash chromatography (silica gel, 12 g, 5% to 10% MeOH in DCM)