| 41. | Acetyl iodide reacts with acetate salts or acetic acid to give the anhydride.
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| 42. | Where desired, this compound may be dried by addition of trifluoroacetic anhydride.
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| 43. | Acyl chlorides or acid anhydrides react with hydrogen fluoride to give acyl fluorides.
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| 44. | The reaction is unusual in that the anhydride reacts with the aromatic ring.
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| 45. | Styrene maleic anhydride copolymer is formed, retaining the aromaticity of the styrene.
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| 46. | They are used to prepare mixed carboxylic acid anhydrides used in peptide synthesis.
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| 47. | These include aliphatic and cycloaliphatic amines, polyaminoamides, amides, and anhydrides.
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| 48. | Their technology currently produces BDO / THF from maleic anhydride, a petrochemical.
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| 49. | Base anhydrides are not Br�nsted Lowry bases because they are not proton acceptors.
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| 50. | Acetic anhydride is used industrially for preparing acetate esters.
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