반응 #415482

반응 방정식

phthalic acid

acetic anhydride

→

3-benzyloxy-6-methylphthalic anhydride

반응 조건

후처리

1. 1
   기타The solvent is removed under reduced pressure
2. 2
   기타the crystalline residue collected
3. 3
   세척washed with ether
4. 4
   기타The anhydride may be recrystallized from nitromethane
5. 5
   기타to give an analytical sample m.p. 200°-203° C.

실험 절차

The crude phthalic acid prepared above is heated in 150 ml acetic anhydride for two hours. The solvent is removed under reduced pressure and the crystalline residue collected and washed with ether. The anhydride may be recrystallized from nitromethane to give an analytical sample m.p. 200°-203° C.

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