A hydrophilic inorganic framework based on a sandwich polyoxometalate: unusual chemoselectivity for aldehydes/ketones with in situ generated hydroxylamine
作者:Songzhu Xing、Qiuxia Han、Zhuolin Shi、Shugai Wang、PeiPei Yang、Qiang Wu、Mingxue Li
DOI:10.1039/c7dt02411h
日期:——
method. The combination of [WZn3(H2O)2(ZnW9O34)2]12− and Co(II) provides a synergistical catalytic way to promote oximation of aldehyde/ketone with in situ generated hydroxylamine that initially produces an oxime, which further either dehydrates into a nitrile or undergoes a Beckmann rearrangement to form an amide.
通过水热法制备亲水性无机多孔催化剂。[WZn 3(H 2 O)2(ZnW 9 O 34)2 ] 12-和Co(II)的组合提供了一种协同催化方式,以促进醛/酮与原位生成肟的羟胺肟化,其进一步脱水成腈或经历贝克曼重排以形成酰胺。