Selective Conversion of Various Monosaccharaides into Sugar Acids by Additive‐Free Dehydrogenation in Water
作者:Andres Mollar‐Cuni、Joseph P. Byrne、Pilar Borja、Cristian Vicent、Martin Albrecht、Jose A. Mata
DOI:10.1002/cctc.202000544
日期:2020.7.21
transformation is promoted by highly active and selective catalysts based on iridium(III) complexes containing a triazolylidene (trz) as ligand. Monosaccharides are converted into sugar acids in an easy and sustainable manner using only catalyst and water, and in contrast to previously reported procedures, in the absence of any additive. The reaction is therefore very clean, and highly selective, which avoids the
五个碳原子和六个碳原子的丰富糖类是生产有价值的平台化学品的有希望的候选者。在这里,我们描述了几种戊糖和己糖的催化脱氢成相应的糖酸,并伴随着分子氢的形成。这种高生物活性的转化是由高活性和选择性的催化剂促进的,该催化剂基于含有三唑基(trz)作为配体的铱(III)配合物。与以前报道的方法相比,在没有任何添加剂的情况下,仅使用催化剂和水,单糖就可以轻松,可持续地转化为糖酸。因此,该反应非常干净且具有高选择性,从而避免了繁琐的纯化和产物分离。机械调查使用11 H NMR和UV光谱以及ESI质谱(ESI-MS)表明形成了前所未有的氢化二铱-氢化物,它对应于催化剂的静止状态。