Orthoesters of sugars
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The PMR spectra of a number of derivatives of 1, 2, 5-orthobenzoyl-β-L-arabinofuranose were studied in detail. The assignment of the signals of all the protons were demonstrated with the aid of deuterated analogs and shifting reagents.
On the basis of the independence of all the spin-spin interaction constants from the nature of the substituent at C3 of the arabinofuranose system, as well as on the nature of the solvent, it was concluded that the framework heterocyclic system lying at the basis of the structure of the orthoesters studied possesses high conformational rigidity.
KeywordsSugar Interaction Constant Heterocyclic System Deuterated Analog Conformational Rigidity
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