تفاعل #51108

معادلة التفاعل

Hydrazine

methyl 4-pentylbicyclo[2.2.2]octane-1-carboxylate

water

→

4-pentylbicyclo[2.2.2]octane-1-carbohydrazide

المذيبات

ethylene glycol

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةunder reflux for 17 h
2. 2
   استخلاصextracted with methylene chloride (3×600 mL)
3. 3
   غسيلThe combined extracts were washed twice with water, brine
4. 4
   تجفيفdried (MgSO4)
5. 5
   تركيزconcentrated in vacuo

الإجراء التجريبي

Hydrazine (anhydrous, 103 mL, 88.7 mmol) was added to a solution of methyl 4-pentylbicyclo[2.2.2]octane-1-carboxylate (2-B) in ethylene glycol (180 mL) and the mixture was stirred under reflux for 17 h. After cooling to room temperature, the mixture was poured into water (1500 mL) and extracted with methylene chloride (3×600 mL). The combined extracts were washed twice with water, brine, dried (MgSO4) and concentrated in vacuo to provide 4-pentylbicyclo[2.2.2]octane-1-carbohydrazide (2-C). 1H NMR (500 MHz, CDCl3): δ 0.90 (t, 3H); 1.21 (m, 8H); 1.43 (m, 6H); 1.74 (m, 6H); 3.85 (broad s, 2H); 6.81 (broad s, 1H) ppm.

المصدر