반응 #4807

반응 방정식

o-nitroaniline

diisobutylene

o-nitroaniline

→

4-tert-Octyl-2-nitroaniline

반응 조건

후처리

1. 1
   기타In a 2-liter reaction flask
2. 2
   기타fitted with a condenser, nitrogen inlet, stirrer
3. 3
   workup.ADDITIONthermometer and addition funnel
4. 4
   농축166 ml (2.0 moles) of concentrated (12 N) hydrochloric acid
5. 5
   workup.ADDITIONis added over a 10-minute period with the temperature
6. 6
   기타rising from 22° to 40° C
7. 7
   workup.WAITrising during this period from 60° to 90° C
8. 8
   기타The deep red fluid reaction mixture
9. 9
   온도is heated for another 18 hours

실험 절차

In a 2-liter reaction flask fitted with a condenser, nitrogen inlet, stirrer, thermometer and addition funnel is placed 272 grams (2.0 moles) of anhydrous zinc chloride. The flask is placed under a nitrogen atmosphere and 166 ml (2.0 moles) of concentrated (12 N) hydrochloric acid is added over a 10-minute period with the temperature rising from 22° to 40° C. To this is then added 276 grams (2.0 moles) of o-nitroaniline over a 15-minute period to avoid the formation of lumps. The resulting thick red slurry is heated to 60° C. and then 474 grams (3.0 moles) of diisobutylene is added gradually over a 110-minute period with the temperature rising during this period from 60° to 90° C. The deep red fluid reaction mixture is heated for another 18 hours at reflux till only a trace of o-nitroaniline is observed by thin layer chromatography.

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