Selective Hydrogenations and Dechlorinations in Water Mediated by Anionic Surfactant-Stabilized Pd Nanoparticles
作者:Giorgio La Sorella、Laura Sperni、Patrizia Canton、Lisa Coletti、Fabrizio Fabris、Giorgio Strukul、Alessandro Scarso
DOI:10.1021/acs.joc.8b00314
日期:2018.7.20
variable amounts of time. The aqueous Pd nanoparticle solutions were tested in the selective hydrogenation reactions of aryl-alcohols, -aldehydes, and -ketones, leading to complete conversion to the deoxygenated products even in the absence of strong Brønsted acids in the reduction of aromatic aldehydes and ketones, in the controlled semihydrogenation of alkynes leading to alkenes, and in the efficient
我们报告了一种在水性介质中制备Pd纳米颗粒的简便,廉价且绿色的方法,该方法通过阴离子磺化表面活性剂1-十二烷磺酸钠1a,十二烷基苯磺酸钠1b,二辛基磺基琥珀酸钠1c和聚(乙二醇)4-壬基苯基-只需搅拌Pd(OAc)2的水溶液即可获得3-磺基丙基醚钾盐1d用市售阴离子表面活性剂在氢气氛下进一步处理可变的时间。在芳基-醇,-醛和-酮的选择性加氢反应中对Pd纳米粒子水溶液进行了测试,即使在不存在强布朗斯台德酸的情况下,在芳族醛和酮的还原反应中也能完全转化为脱氧产物。可控制的炔烃半加氢生成烯烃,以及芳香族底物的有效加氢脱氯。在所有情况下,胶束介质对于稳定金属纳米颗粒,溶解底物,控制产品选择性以及实现回收利用都是至关重要的。