Catalysis Letters p. 919 - 929 (2015)
Update date:2022-08-12
Topics:
Kumar, Gaurav
Dhawan, Ashish
Singh, Brajendra K.
Sharma, Nawal K.
Sharma, Sunil K.
Prasad, Ashok K.
Van Der Eycken, Erik V.
Len, Christophe
Watterson, Arthur C.
Parmar, Virinder S.
Acid anhydrides have been used to carry out the regioselective acylation of primary hydroxyl group in benzyl 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoate and 4-fluorobenzyl 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoate and deacylation of their diesters in the presence of Lipozyme TL IM in diisopropyl ether. Amongst different acid anhydrides used, butanoic anhydride was found to be the best acylating agent as compared to others. Both acylation and deacylation reactions were highly selective and efficient yielding exclusively the monoacylated products in 70-88 % yields.
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