Studies of Tritylated Sucrose. I. Mono-<I>O</I>-tritylsucroses
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概要
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Two isomeric mono-<I>O</I>-tritylsucroses were isolated from a mixture of tritylated sucrose which had been obtained by the reaction of sucrose and trityl chloride in the ratio of 1 : 1.2 by mole. The structures of these two isomers were established by the application of gas chromatography and NMR spectroscopy to appropriate derivatives. One of the two substances is 6′-mono-<I>O</I>-tritylsucrose, and the other is 6-mono-<I>O</I>-tritylsucrose, which is crystallized as white needles. The detritylation of mono-<I>O</I>-trityl-<I>O</I>-acetylsucroses yielded hepta-<I>O</I>-acetylsucroses, which were confirmed by a study of their NMR spectra to be 2,3,4,6,1′,3′,4′- and 2,3,4,1′,3′,4′,6′-hepta-<I>O</I>-acetylsucrose. No migration of the acetyl group on the sucrose molecule was observed during the detritylation procedure.
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