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Benzoic anhydride

Chemical compound (C6H5CO)2O

Summary

Chemical compound (C6H5CO)2O

Benzoyl anhydride Benzoyl benzoate | NFPA-F = 2 | NFPA-H = 1 | NFPA-R = 1 Benzoic anhydride is the organic compound with the formula (C6H5CO)2O. It is the acid anhydride of benzoic acid and the simplest symmetrical aromatic acid anhydride. It is a white solid.

Preparation and reactions

It is usually prepared by the dehydration reaction of benzoic acid, e.g. using acetic anhydride: :2 C6H5CO2H + (CH3CO)2O → (C6H5CO)2O + 2 CH3CO2H Alternatively, sodium benzoate can be treated with benzoyl chloride. It can be produced by dehydrating benzoic acid by heating.

Benzoic anhydride provides a convenient way to prepare benzoic esters: :(C6H5CO)2O + ROH → C6H5CO2H + C6H5CO2R

References

References

  1. "Sciencelab msds".
  2. "aldrich product page".
  3. (1923). "Benzoic Anhydride". Org. Synth..
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carboxylic-anhydrides
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