تفاعل #5101
ord-078c67ca02f34b0ebcf180a005a5ee53
معادلة التفاعل
الكواشف
ظروف التفاعل
المعالجة
- 1أخرىThe aqueous layer was removed
- 2غسيلwashed with 200 ml diethyl ether
- 3تجفيفdried (MgSO4)
- 4أخرىevaporated to a white gummy residue which
- 5أخرىwas dried in vacuo
الإجراء التجريبي
A solution of 10.0 g (66.7 mmoles) p-tertbutylphenol in 50 ml dry dimethyl formamide was added, dropwise, to a mechanically stirred slurry of 8.4 g sodium hydride (as 50% oil dispersion) in 500 ml dry dimethyl formamide. To the phenoxide solution was added, dropwise, a solution of 6.3 g (66.3 mmoles) chloroacetic acid in 50 ml dry dimethyl formamide. The reaction mixture was stirred at room temperature for two hours. The reaction mixture was diluted with 200 ml diethyl ether and acidified with 3N hydrochloric acid. The aqueous layer was removed and washed with 200 ml diethyl ether. The organic layers were combined, dried (MgSO4) and evaporated to a white gummy residue which was dried in vacuo yielding p-t-butylphenoxyacetic acid, 9.0 g (65%).