- Conformational analysis of oligo-1,3-dioxan-4-yls
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Whereas simple 4,4′-bi(1,3-dioxanyl)s 16 and 19 displayed little conformational preference at the inter-ring bond, their derivatives 4 and 13, with equatorial methyl groups in the 5- and 5′-positions, each showed a strong conformational preference to populate a conformation with a gauche arrangement of the oxygen atoms. These results form the basis of a modular approach to oligo-1,3-dioxanyls 5, 6, and 29, in each of which a strong conformational preference prevails at all of the inter-ring bonds. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.
- Brandl, Trixi,Hoffmann, Reinhard W.
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p. 2613 - 2623
(2007/10/03)
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