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Carbodeoxygenation of biomass: The carbonylation of glycerol and higher polyols to monocarboxylic acids

机译:生物质的碳脱氧:甘油和高级多元醇羰基化为一元羧酸

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摘要

Glycerol is converted to a mixture of butyric and isobutyric acid by rhodium- or iridium-catalysed carbonylation using HI as the co-catalyst. The initial reaction of glycerol with HI results in several intermediates that lead to isopropyl iodide, which upon carbonylation forms butyric and isobutyric acid. At low HI concentration, the intermediate allyl iodide undergoes carbonylation to give vinyl acetic acid and crotonic acid. Higher polyols C_nH _(n+2)(OH)_n are carbonylated to the corresponding C _(n+1) mono-carboxylic acids.
机译:使用HI作为助催化剂,通过铑或铱催化的羰基化作用将甘油转化为丁酸和异丁酸的混合物。甘油与HI的初始反应产生了几种中间体,这些中间体可生成异丙基碘化物,在羰基化反应后会形成丁酸和异丁酸。在低HI浓度下,中间体烯丙基碘经过羰基化反应生成乙烯基乙酸和巴豆酸。高级多元醇C_nH_(n + 2)(OH)_n被羰基化为相应的C_(n + 1)一元羧酸。

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