ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Boron Compounds, XLIX1). - Note on New Exchange Phenomena of O-Ethylboranediyl GroupsThe O-ethylboranediyl derivatives of certain polyhydroxy compounds 1 having a threo- or xylo-configuration [threitol (1 a), xylitol (1 b), glucitol (1 c)] are each pairs of structural isomers 2 and 3. This is evident from the 13C- and 1H-NMR spectra2) of di-O-ethylboranediylthreitol (2 a/3 a), 1-O-acetyl-di-O-ethylboranediylxylitol (2 b/3 b) and tri-O-ethylboranediylglucitol (2 c/3 c). Gas chromatographic separations of 2/3 have not yet been achieved.
Notes:
Die O-Ethylborandiyl-Derivate bestimmter Polyhydroxyalkane 1 mit threo- oder xylo-Konfiguration [Threit (1 a), Xylit (1 b), Glucit (1 c)] sind jeweils Paare von Strukturisomeren 2 und 3. Dies ergibt sich aus den 13C- und 1H-NMR-Spektren2) von Di-O-ethylborandiylthreit (2 a/3 a), 1-O-Acetyl-di-O-ethylborandiylxylit (2 b/3 b) und Tri-O-ethylborandiylglucit (2 c/3 c). Gaschromatographische Trennungen von 2/3 sind bisher nicht gelungen.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198019800713
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