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Chemistry–A European Journal

Stabilities of Trityl??Protected Substrates: The Wide Mechanistic Spectrum of Trityl Ester Hydrolyses

M Horn, H Mayr

文献索引:Horn, Markus; Mayr, Herbert Chemistry - A European Journal, 2010 , vol. 16, # 25 p. 7469 - 7477

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被引用次数: 17

摘要

Abstract Ionization rates of para-substituted triphenylmethyl (trityl) acetates, benzoates, and para-nitrobenzoates have been determined in aqueous acetonitrile and aqueous acetone at 25 C. Conventional and stopped-flow techniques have been used to evaluate rate constants ranging from 1.38× 10− 5 to 2.15× 10 2 s− 1 by conductimetry and photospectrometry methods. The varying stabilities of the differently substituted tritylium ions account for a ...