Quantitative NMR Approach to Optimize the Formation of Chemical Building Blocks from Abundant Carbohydrates
作者:Samuel G. Elliot、Søren Tolborg、Irantzu Sádaba、Esben Taarning、Sebastian Meier
DOI:10.1002/cssc.201700587
日期:2017.7.21
The future role of biomass‐derived chemicals relies on the formation of diverse functional monomers in high yields fromcarbohydrates. Recently, it has become clear that a series of α‐hydroxy acids, esters, and lactones can be formed fromcarbohydrates in alcohol and water solvents using tin‐containing catalysts such as Sn‐Beta. These compounds are potential building blocks for polyesters bearing additional
Synthesis of a novel polyester building block from pentoses by tin-containing silicates
作者:S. G. Elliot、C. Andersen、S. Tolborg、S. Meier、I. Sádaba、A. E. Daugaard、E. Taarning
DOI:10.1039/c6ra26708d
日期:——
We report here the direct formation of the new chemical product trans-2,5-dihydroxy-3-pentenoic acid methyl ester from pentoses using tin-containing silicates as catalysts. The product is formed under alkali-free conditions in methanol at temperatures in the range 140–180 °C. The highest yields are found using Sn-Beta as the catalyst. Under optimised conditions, a yield of 33% is achieved. Purified