Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Special Collection of Papers: Notes
Acceleration of Acid-Catalyzed Hydrolysis in a Biphasic System by Sodium Tetracyanocyclopentadienides
Takeo Sakai Mariko BitoMakoto ItakuraHonami SatoYuji Mori
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2016 Volume 64 Issue 7 Pages 930-934

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Abstract

The hydrolysis of tert-butyldimethylsilyl L-menthyl ether (3) in a CH2Cl2–1 M HCl biphasic solvent system was accelerated by the addition of sodium tetracyanocyclopentadienides 1. Particularly, the reaction rate was enhanced using sodium salt 1ac with a lipophilic substituent on the cyclopentadienide ring. From the results obtained by a triphasic experiment, hydrolysis proceeds via the formation of hydronium ion 2 in the aqueous phase by ion exchange, followed by the transfer of 2 to the CH2Cl2 phase.

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© 2016 The Pharmaceutical Society of Japan
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