PENTAMETHYL d-MANNOSE AND PENTAMETHYL d-GALACTOSE AND THEIR DIMETHYL ACETALS
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The Occurrence of D-mannose in Seaweed and the Separation of L-fucose and D-mannose.*
The wide-spread occurrence of mannans and fucosans in nature makes it not improbable that some of these vegetable gums may in fact consist in part at least of fuco-mannans. In general the isolation and identification of two or more sugars from a mixture is often fraught with experimental difficulties, particularly if the material is available only in small amounts. Any simple procedure applicab...
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The ®rst of the title compounds, C31H27NO4S, (V), crystallizes in the monoclinic space group P21/c with two independent molecules in the asymmetric unit, while the second, C23H27Cl2NS, (IX), crystallizes in the orthorhombic space group Pbca with one molecule in the asymmetric unit. In both crystal structures, the 1,3-thiazolidine ring adopts a half-chair conformation. The crystal structures are...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1927
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(20)74058-5