Saponification of hindered aromatic ester

23 Nucleophilic Additions to Carbonyl Compounds Saponification of hindered aromatic esters 

This is a typical representative example of an enhanced microwave-specific effect related to the difficulty of the reaction, which presumably proceeds via a later and later TS. Whereas essentially thermal effects are observed (around 200 °C) with methyl and octyl benzoate, a microwave-specific effect is increasingly apparent with hindered esters and becomes optimal with mesitoyl octanoate (Eq. (43) and Tab. 3.18) [95]. 

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See also in sourсe #XX -- [ ]

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