Understanding the abundance of the rare sugar β-d-allose. Issue 38 (7th September 2022)

• Record Type: Journal Article
• Authors: Juárez, G.; Alonso, E. R.; Sanz-Novo, M.; Alonso, J. L.; León, I.
• Is Part Of: Physical chemistry chemical physics. Volume 24:Issue 38(2022)
• Page Start: 23076
• Page End: 23081
• Publication Date: 2022-09-07
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/d2cp03213a
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The conformational landscape of β-d -allose, a rare sugar, was investigated using laser ablation in combination with high-resolution rotational spectroscopy, showing considerably stronger intramolecular hydrogen bonds than in β-d -glucose. Abstract : The conformational landscape of β-d -allose, a rare sugar, was investigated using laser ablation in combination with high-resolution rotational spectroscopy. Altogether, three species are identified, exhibiting a counter-clockwise intramolecular hydrogen bond network. The effect of epimerization on the main aldohexose is also studied and, despite the main conformers being very similar, the position of the hydroxyl groups in allose allows the formation of considerably stronger intramolecular hydrogen bonds than in glucose, and this could explain the low abundance of β-d -allose in Nature.