تفاعل #332463

معادلة التفاعل

6-Amino-2-(4-chloro-2-fluoro-3-methoxyphenyl)pyrimidine-4-carboxylic acid methyl ester

N-bromosuccinimide

→

title compound

المردود 77.0%

6-Amino-5-bromo-2-(4-chloro-2-fluoro-3-methoxyphenyl)-pyrimidine-4-carboxylic acid methyl ester

المردود 77.0%

المذيبات

chloroform

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةheated
2. 2
   درجة الحرارةat reflux for 12 h
3. 3
   أخرىThe cooled reaction mixture
4. 4
   تركيزwas concentrated
5. 5
   أخرىthe product was purified by flash chromatography on silica gel

الإجراء التجريبي

6-Amino-2-(4-chloro-2-fluoro-3-methoxyphenyl)pyrimidine-4-carboxylic acid methyl ester (778 mg, 2.5 mmol) and N-bromosuccinimide (489 mg, 2.75 mmol) were combined in chloroform (10 mL) and heated at reflux for 12 h. The cooled reaction mixture was concentrated and the product was purified by flash chromatography on silica gel to yield the title compound (752 mg, 77% yield): mp 173-175° C.: 1H NMR (CDCl3) δ 7.66 (dd, 1H), 7.24 (dd, 1H), 5.73 (br s, 2H), 4.03 (s, 3H), 4.01 (d, 3H).

المصدر