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Authentic standards for the reductive-cleavage method. The positional isomers of partially methylated and acetylated or benzoylated 1,5-anhydro-d-galactitol

✍ Scribed by Larry E. Elvebak II; Christine Abbott; Shelly Wall; Gary R. Gray

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 650 KB
Volume: 269
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(94)00353-h

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✦ Synopsis

Described herein is an efficient method for the synthesis of the sixteen positional isomers of methylated and acetylated or benzoylated 1,5-anhydro-o-galactitol. The compounds are generated simultaneously by partial methylation of 1,5-anhydro-D-galactitol and subsequent benzoylation, and the individual isomers are obtained in pure form by high-performance liquid chromatography. Debenzoylation and acetylation yielded the desired acetates. Reported herein are the 1H NMR spectra of the benzoates and the electron-ionization mass spectra of the acetates and the tetra-O-methyl derivative. Also reported for the acetates and the tetra-O-methyl derivative are their linear temperature-programmed gas-liquid chromatography retention indices on three different capillary columns.

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