Oxidative Transformations of Biosourced Alcohols Catalyzed by Earth-Abundant Transition Metals
作者:Duc Hanh Nguyen、Yohann Morin、Lei Zhang、Xavier Trivelli、Frédéric Capet、Sébastien Paul、Simon Desset、Franck Dumeignil、Régis M. Gauvin
DOI:10.1002/cctc.201700310
日期:2017.7.24
The catalytic acceptorless dehydrogenative oxidation of biosourced alcohols into carboxylic acid salts was achieved using earth‐abundant Fe and Mn complexes that feature aliphatic PNP pincer ligands in good to excellent yields. The Fe derivatives were characterized by using 57Fe NMR spectroscopy. Mn pincer catalysts are catalytically more efficient than their Fe counterparts thanks to their robustness
使用地球上丰富的铁和锰络合物实现了生物来源醇的无受体催化脱氢氧化成羧酸盐,这些络合物具有脂肪族PNP钳形配体,收率高至极佳。通过使用57 Fe NMR光谱对Fe衍生物进行表征。由于在基本条件下具有坚固性,因此Mn夹钳催化剂比Fe对应的催化剂具有更高的催化效率。使用Fe和Mn物种尝试从醇生成醛的尝试并不成功,但是可商购获得的Ru类似物在非常温和的条件下,在大量过量的丙酮作为氢受体的存在下,选择性地实现了这种转化。