تفاعل #70517

معادلة التفاعل

potassium carbonate

4-{[(1,1-Dimethylethyl)oxy]carbonyl}-2-morpholinecarboxylic acid

Water

Bromomethylbenzene

→

title compound

المردود 85.7%

4-(1,1-Dimethylethyl) 2-(phenylmethyl) 2,4-morpholinedicarboxylate

المردود 85.7%

المذيبات

N,N-dimethylformamide

dichloromethane

ظروف التفاعل

المعالجة

1. 1
   workup.STIRRINGthe mixture stirred under nitrogen at room temperature for 18 hr
2. 2
   أخرىseparated by hydrophobic fit
3. 3
   استخلاصThe aqueous phase was extracted with dichloromethane (2×20 ml)
4. 4
   أخرىthe solvent was removed in vacuo
5. 5
   workup.ADDITIONTo the residue 1% lithium chloride solution (20 ml) and diethyl ether (20 ml) were added
6. 6
   أخرىThe phases were separated
7. 7
   استخلاصthe aqueous phase was extracted with diethyl ether (2×15 ml)
8. 8
   تجفيفThe combined organic phases were dried over magnesium sulphate
9. 9
   أخرىthe solvent was removed in vacuo

الإجراء التجريبي

4-{[(1,1-Dimethylethyl)oxy]carbonyl}-2-morpholinecarboxylic acid [Supplied by NeoMPS] (1 g, 4.32 mmol) was dissolved in N,N-dimethylformamide (20 ml) and potassium carbonate (0.598 g, 4.32 mmol) added. The mixture was stirred under nitrogen for 15 minutes at 20° C. Bromomethylbenzene (0.514 ml, 4.32 mmol) was added and the mixture stirred under nitrogen at room temperature for 18 hr. Water (25 ml) and dichloromethane (20 ml) were added and separated by hydrophobic fit. The aqueous phase was extracted with dichloromethane (2×20 ml). The organic phases were combined and the solvent was removed in vacuo. To the residue 1% lithium chloride solution (20 ml) and diethyl ether (20 ml) were added. The phases were separated and the aqueous phase was extracted with diethyl ether (2×15 ml). The combined organic phases were dried over magnesium sulphate and the solvent was removed in vacuo to give the title compound (1.19 g) as a colourless oil.

المصدر