تفاعل #1581

معادلة التفاعل

N-(4-chloro-2-fluorophenyl)-1-cyclohexene-1,2-dicarboximide

nitric acid

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title product

المردود 101.6%

N-(4-Chloro-2-fluoro-5-nitrophenyl)-1-cyclohexene-1,2-dicarboximide

المردود 101.6%

المذيبات

sulfuric acid

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةwhile maintaining the temperature at 0°-2° C.
2. 2
   workup.ADDITIONpoured onto ice
3. 3
   workup.STIRRINGThe aqueous mixture is stirred for several minutes
4. 4
   ترشيحfiltered
5. 5
   أخرىto obtain a solid which
6. 6
   غسيلis washed with water
7. 7
   أخرىdried

الإجراء التجريبي

A mixture of N-(4-chloro-2-fluorophenyl)-1-cyclohexene-1,2-dicarboximide (24.4 g, 86.7 mmol) in sulfuric acid (150 mL) is cooled to -3° C., treated dropwise with nitric acid (70% real, 6.70 mL, 104 mmol) while maintaining the temperature at 0°-2° C., stirred at room temperature for 90 minutes, and poured onto ice. The aqueous mixture is stirred for several minutes, and filtered to obtain a solid which is washed with water and dried to give the title product as a white powder (28.6 g, mp 152°-155° C.).

المصدر