تفاعل #66632

معادلة التفاعل

iodine monochloride

5-(2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine

iodine monochloride

NaHCO3

Water

→

5-(5-iodo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine

المردود 93.0%

المذيبات

acetic acid

acetic acid

acetic acid

ظروف التفاعل

المعالجة

1. 1
   workup.STIRRINGThe reaction mixture was stirred for an additional hour at room temperature
2. 2
   استخلاصextracted into dichloromethane
3. 3
   تجفيفThe organic layer was dried over Na2SO4
4. 4
   ترشيحfiltered
5. 5
   تركيزconcentrated in vacuo
6. 6
   أخرىThe residue was purified via flash chromatography (5% CH3OH in CH2CL2 with 0.1% NH4OH)

الإجراء التجريبي

To a solution of 5-(2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine (0.40 g, 1.44 mmol) in glacial acetic acid (4 ml) at room temperature was added a solution of iodine monochloride (0.28 g, 1.76 mmol) in glacial acetic acid (4 ml). Water (6 ml) was also added, and the reaction was stirred for 16 hours, after which another portion of iodine monochloride (0.4 g, 2.47 mmol) in glacial acetic acid (4 ml) was added. The reaction mixture was stirred for an additional hour at room temperature. The acidic mixture was basified with saturated NaHCO3 solution and extracted into dichloromethane. The organic layer was dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified via flash chromatography (5% CH3OH in CH2CL2 with 0.1% NH4OH) to give 5-(5-iodo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine as beige colored solid (0.536 g, 92%). M+H 400.

المصدر