Synthesis of natural/13C-enriched d-tagatose from natural/13C-enriched d-fructose

Autor: Adam J. Shuhendler, Thomas A. Charlton, Mojmír Suchý, Robert N. Ben
Rok vydání: 2021
Předmět:
Zdroj: Carbohydrate Research. 507:108377
ISSN: 0008-6215
DOI: 10.1016/j.carres.2021.108377
Popis: A concise, easily scalable synthesis of a rare ketohexose, d -tagatose, was developed, that is compatible with the preparation of d -[UL-13C6]tagatose. Epimerization of the widely available and inexpensive ketohexose d -fructose at the C-4 position via an oxidation/reduction (Dess-Martin periodinane/NaBH4) was a key step in the synthesis. Overall, fully protected natural d -tagatose (3.21 g) was prepared from d -fructose (9 g) on a 50 mmol scale in 23% overall yield, after five steps and two chromatographic purifications. d -[UL-13C6]Tagatose (92 mg) was prepared from d -[UL-13C6]fructose (465 mg, 2.5 mmol) in 16% overall yield after six steps and four chromatographic purifications.
Databáze: OpenAIRE