143205-27-0Relevant academic research and scientific papers
Carbamate Derivatives of β-Cyclodextrin as Chiral Stationary Phases for Metal Capillary Gas Chromatography
Takeichi, Tsutomu,Shimura, Sigeru,Toriyama, Hisashi,Takayama, Yuzi,Morikawa, Masami
, p. 1069 - 1072 (1992)
Three kinds of novel chiral stationary phases for capillary gas chromatography, heptakis(2,6-di-O-pentyl)-β-cyclodextrin hepta(3-n-propyl, 3-isopropyl, and 3-phenylcarbamate), were prepared.Metal capillary columns coated with the stationary phases showed impressive enantioseparation toward many kinds of racemic compounds.
Characterization of the cyclomalto-hexaose and -heptaose derivatives by the reductive-cleavaeg method
Mischnick-Luebbecke, Petra,Krebber, Ralph
, p. 197 - 202 (2007/10/02)
The substitution patterns of cyclomalto-hexaose and -heptaose derivatives carrying alkyl, acyl, and carbamoyl substituents have been investigated by the reductive-cleavage method.The modified cyclomalto-hexaoses or -heptaoses were treated with triethylsilane and trimethylsilyl trifluoromethanesulfonate to give the corresponding 1,5- and 1,4-anhydroglucitol derivatives that were acetylated or, in the case of acetyl derivatives, trifluoroacetylated and analysed by g.l.c.-m.s.For the alkylated compounds, minute amounts of products formed by under- or over-alkylation, or of isomeric components, could be detected.Partial reduction of the acyloxy groups to alkyloxy groups and cleavage of acyl substituents were observed.Carbamoyl substituents were stable under the conditions of reductive cleavage.
