Tetrahedron Letters p. 7327 - 7330 (1993)
Update date:2022-07-30
Topics:
Dondoni, Alessandro
Marra, Alberto
The reactions of 2-thiazolylcarbonylmethylenetriphenylphosphorane with five protected D-furanoses (manno, ribo, arabino, xylo, and lyxo) in refluxing toluene lead to mixtures of α- and β-1-C-(2-thiazolacyl)-glycosides (66-93 % overall yield). The β-linked C-glycosides derived from 2,3:5,6-di-O-isopropylidene-D-mannnofuranose was reduced to (R) and (S) akohols which after protection as O-benzyl ethers were transformed to α-alkoxy aldehydes by thiazole-to-formyl conversion; the aldehydes were oxidized to the corresponding α-alkoxy acids.
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