Investigation of the Diastomerism of Compounds with a Long-Chain Tether between the Stereogenic Centers

V. P. Talsi,S. N. Evdokimov,A. L. Shatsauskas

Russian Journal of Organic Chemistry（2019）

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摘要

The NMR spectra of several heterocyclic compounds synthesized at Omsk universities revealed manifestation of a diasteomerism at a large (up to fifteen bonds) distance between the stereogenic centers. This phenomenon was explained by a regular helical secondary structure of the tether between the centers.

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关键词

NMR, podand diastereomerism, oxazolopyridines, pyramidal nitrogen inversion, secondary helical structure of the hydroxyethyl chain

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