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Zur Stereoanalyse von Diastereomeren 5-C-Ethoxycarbonyl-methylen-hexofuranurono-6, 3-lactonen und-3, 6-Anhydrofuranosen

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Csuk, R., Fürstner, A., Kalchhauser, H., Kratky, C., Wagner, U., & Weidmann, H. (1986). Zur Stereoanalyse von Diastereomeren 5-C-Ethoxycarbonyl-methylen-hexofuranurono-6, 3-lactonen und-3, 6-Anhydrofuranosen. Journal of Carbohydrate Chemistry, 5(3), 401-409. doi:10.1080/07328308608058844.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-F185-E
Abstract
The stereochemistry of the branched C-ethoxycarbonyl-methy.lene derivatives 1a, 1b, 2a, and 2b was evaluated by analysis of their 1H- and 13C-NMR shift data, unequivocally supported by NOE-effects clearly discriminating diastereomers. The X-ray-analysis of isomer 2a confirmed the NMR-data and provided the picture of its detailed structure.