Acid anhydride and alcohol

NOTE.—(h) Sulphuric acid serves as a valuable catalytic agent in bringing about a reaction between alcohols and acid anhydrides. 

Explain why direct ester formation from carboxylic acids and alcohols works in acid solution but not in basic solution. By contrast, ester formation from alcohols and acid anhydrides or chlorides is commonly carried out in basic solution in the presence of bases such as pyridine. Why does this work. ... 

From what alcohol and acyl chloride can the following esters be synthesized From what alcohol and acid anhydride ... 

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See also in sourсe #XX -- [ ]

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