Hydrolysis of phosphates, esters and related substrates by models of biological catalysts

J K Bashkin1

  • 1Monsanto Company R3A, St Louis, MO 63167, USA. james.k. bashkin@monsanto.com.

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Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
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Hydrolysis of esters under acidic conditions proceeds through a nucleophilic acyl substitution. In the presence of excess water, the reaction proceeds in a reversible manner, forming carboxylic acids and alcohols.
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