反应详情

A solution of 6-chloronicotinoyl chloride (38.037 g, 216 mmol, Eq: 1.00) in anhydrous diethyl ether (200 ml) was added dropwise to a stirred 3 M methylmagnesium iodide solution (158 ml, 475 mmol, Eq: 2.2) at room temperature. After the addition the reaction mixture was refluxed for 3 hours. Reaction was quenched by pouring it to a stirred mixture of ice/200 ml acetic acid; sodium bicarbonate was added until pH 8; extracted with diethyl ether; washed with brine; dried over sodium sulfate; filtered; concentrated to give a yellow solid (30.15 g, 0.175 mol) MS (H+)=172.1

1. additionAfter the addition the reaction mixture
2. temperaturewas refluxed for 3 hours
3. customReaction
4. customwas quenched
5. additionby pouring it
6. additionto a stirred mixture of ice/200 ml acetic acid
7. additionsodium bicarbonate was added until pH 8
8. extractionextracted with diethyl ether
9. washwashed with brine
10. dry with materialdried over sodium sulfate
11. filtrationfiltered
12. concentrationconcentrated