Preparation of Methoxy-substituted Diaryl Ketone Anils<i>via</i>Phenyliminodimagnesium Intermediate
作者:Masao Okubo、Sonoko Ueda
DOI:10.1246/bcsj.53.281
日期:1980.1
Phenyliminodimagnesium reagent (PhN(MgBr)2) and its o- and p-methoxy derivatives, prepared in THF by treatment of anilines with EtMgBr, were found to be effective for condensation with benzophenones and fluorenone. The corresponding anils (N-(diarylmethylene)anilines) were prepared in good yields.
Tungsten Oxide Dispersed on Silica as Robust and Readily Available Oxo/Imido Heterometathesis Catalyst
作者:Nikolai S. Bushkov、Andrey V. Rumyantsev、Anton A. Zhizhin、Tatyana V. Strelkova、Roman A. Novikov、Evgenii I. Gutsul、Rina U. Takazova、Dinara K. Kitaeva、Nikolai A. Ustynyuk、Pavel A. Zhizhko、Dmitry N. Zarubin
DOI:10.1002/cplu.202400029
日期:2024.8
Tungstenoxide dispersed on silica (WO3/SiO2), robust and widely used industrial material, was shown to be an efficient oxo/imido heterometathesis catalyst and applied for the preparation of ketimines hardly accessible by classical methods demonstrating the performance competitive with the previously reported highly sensitive catalysts prepared via Surface Organometallic Chemistry.