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Acetic anhydride

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Acetic anhydride

Molecular formula: C4H6O3 CAS# 108-24-7
Categories: Acid anhydride
Names
English:
Acetanhydride
Acetic acid anhydride
Acetic acid, 1,1'-anhydride
Acetic acid, anhydride(CAS)
Acetic anhydride
Acetic oxide
Acetyl acetate(IUPAC)
Acetyl anhydride
Acetyl ether
Acetyl oxide
Anhydride acetique
Essigsaeureanhydrid
Ethanoyl ethanoate
UN 1715
anhidrido acetico
ethanoic anhydride(IUPAC)
Русский:
Уксусный ангидрид
ангидрид уксусной кислоты
ангидрид этановой кислоты
German:
Ac2O
Acetanhydrid
Essigsäureanhydrid
Ethansäureanhydrid
Español:
Anhídrido acético(IUPAC)
anhídrido etanoico(IUPAC)
Óxido de acetilo
óxido acético
French:
Anhydride acétique
Anhydride éthanoïque(IUPAC)
Italiano:
Anidride acetica
ossido di acetile
ossido di etanoile(IUPAC)
日本語:
無水酢酸(IUPAC)
中文:
乙酐
乙酸酐
無水醋酸
醋酐
醋酸酐

Variants of the formula:

(CH3CO)2O
/`|O|\O/`|O|\
H3C/C`|O|\O/C`|O|\CH3
CH3`/<`=O>\O`/<`=O>\CH3
H3C-<//O>\O`/<`-H3C>\\O
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Acetic anhydride is involved

  • C6H5OCH3 + (CH3CO)2O → CH3OC6H4C(O)CH3 + CH3COOH
  • Co(CH3COO)2 + 2H2O + 4CH3CO{X} -> Co{X}2 + 2(CH3CO)2O + 2CH3COOH + 2H{X} , where X = Cl Br
  • /`|O|\O/`|O|\ + H2S → /`|O|\SH + /`|O|\OH
  • AlCl3 + 3(CH3CO)2O "180^oC"--> Al(CH3COO)3 + 3CH3COCl
  • 2|\\|`/<`\`|/>|<`/><_(a20)>\OH + /`|O|\O/`|O|\ "26-28^oC"--> 2|\\|`/<`\`|/>|<`/><_(a20)>\O/`|O|\ + H2O