تفاعل #1781

معادلة التفاعل

2-ethyl nicotinic acid lithium salt

lithium aluminum hydride

→

2-ethyl-3 -hydroxymethylpyridine

المذيبات

THF

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةthen cooled to 0° C.
2. 2
   أخرىquenched with EtOAc (949 μL)
3. 3
   ترشيحThe solution was filtered
4. 4
   أخرىthe solvent removed under reduced pressure
5. 5
   workup.ADDITIONToluene was added
6. 6
   أخرىthe solvent was removed under reduced pressure

الإجراء التجريبي

The 2-ethyl nicotinic acid lithium salt (5 g, 3.18 mmol) in distilled THF (400 mL) under nitrogen was cooled to 0° C. and lithium aluminum hydride (1M in THF) (25 mL) was added dropwise. The reaction was stirred for 3 hours at room temperature then cooled to 0° C. and quenched with EtOAc (949 μL), then H2O (949 μL), then 15% NaOH (949 μL), followed by H2O (2.8 mL). The solution was filtered and the solvent removed under reduced pressure. Toluene was added and the solvent was removed under reduced pressure to give the desired 2-ethyl-3 -hydroxymethylpyridine.

المصدر