Lewis acidic strength controlled highly selective synthesis of oxime via liquid-phase ammoximation over titanosilicates†,10.1039/C4RA08799B

热搜：

Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Lewis acidic strength controlled highly selective synthesis of oxime via liquid-phase ammoximation over titanosilicates†

Zuoxi Zhuo,Lizhi Wu,Lei Wang,Yichun Ding,Xiaoqian Zhang,Yueming Liu,Mingyuan He

RSC Advances Pub Date : 09/29/2014 00:00:00 , DOI:10.1039/C4RA08799B

Abstract

The Lewis acidity of titanosilicates determines the selectivity of the oxime in ammoximation. Higher Lewis acidic strength of Ti active sites could promote free H₂O₂ to participate in the highly efficient formation of NH₂OH by lowering the reaction activation energy for the formation of Ti–OOH species, and thus fundamentally suppress the side reactions of deep oxidation.