تفاعل #60234

معادلة التفاعل

2-bromofluorene

orthoperiodic acid

sulfuric acid

iodine

→

yellow crystal

2-bromo-7-iodofluorene

المذيبات

water

water

acetic acid

ظروف التفاعل

المعالجة

1. 1
   workup.ADDITIONCharged
2. 2
   أخرىwas elevated up to 90° C.
3. 3
   درجة الحرارةthe mixture was heated for 3 hours
4. 4
   workup.STIRRINGwhile stirring
5. 5
   workup.WAITThe reaction solution was left
6. 6
   درجة الحرارةcooling down to room temperature
7. 7
   أخرىThe precipitate formed
8. 8
   ترشيحwas filtered
9. 9
   غسيلwashed with ethanol and water
10. 10
    أخرىThe solid matter thus obtained
11. 11
    أخرىwas recrystallized from ethanol

الإجراء التجريبي

Charged were 2-bromofluorene 25.0 g, iodine 11.5 g, orthoperiodic acid 4.88 g, acetic acid 150 ml, conc. sulfuric acid 3 ml and water 10 ml, and the mixture was heated at 60° C. for 30 minutes while stirring. Further, the temperature was elevated up to 90° C., and the mixture was heated for 3 hours while stirring. The reaction solution was left cooling down to room temperature and poured into 500 ml of water. The precipitate formed was filtered and washed with ethanol and water. The solid matter thus obtained was recrystallized from ethanol to obtain 26.5 g of yellow crystal of 2-bromo-7-iodofluorene.

المصدر