Perhydroxylated 1,7-Dioxaspiro[5.5]undecanes (“Spiro Sugars”): Synthesis,Stereochemistry, and Structure |
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Authors: | Raphael Bextermö ller,Hartmut Redlich,Klaus Schnieders,Sven Thormä hlen,Roland Frö hlich |
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Abstract: | As spiro sugars is an apt way of considering perhydroxylated 1,7-dioxaspiro[5.5]undecanes–a class of compounds which has not been found in nature up to now. The crystal structure of such a spiroacetal, in which the two pyran rings show the β-D -manno configuration, is depicted. Note that the all-trans arrangement of C-6, C,-5, Opyr, Cspiro, Opyr′, C-5′, and C-6′ does not allow any of the stereoelectronic effects that are typical of carbohydrates. |
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Keywords: | Carbohydrates Spiro compounds Structure elucidation Synthetic methods |
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