A sensitive amine-responsive disassembly of self-assembled AuI -CuI double salts was observed and its utilization for the synergistic catalysis was enlightened. Investigation of the disassembly of [Au(NHC)2 ][CuI2 ] revealed the contribution of Cu-assisted ligand exchange of N-heterocyclic carbene (NHC) by amine in [Au(NHC)2 ]+ and the capacity of [CuI2 ]- on the oxidative step. By integrating the
Organic ligand and solvent free oxidative carbonylation of amine over Pd/TiO<sub>2</sub> with unprecedented activity
作者:Shujuan Liu、Xingchao Dai、Hongli Wang、Feng Shi
DOI:10.1039/c9gc01577a
日期:——
A highly active Pd/TiO2 catalyst system was prepared and applied in the oxidativecarbonylation of amines to ureas with ultra-low Pd content under organic ligand and solvent free conditions. The catalytic turnover frequencies (TOFs, moles of amines converted per mole of Pd per h) were 126 000 and 250 000 h−1 for the production of diphenylurea and dibenzylurea, respectively. An expanded substrate scope
制备了高活性的Pd / TiO 2催化剂体系,并在有机配体和无溶剂条件下,将胺氧化羰基化为具有超低Pd含量的脲。用于生产二苯基脲和二苄基脲的催化转换频率(TOF,每摩尔Pd / h转化的胺的摩尔数)分别为126 000和250 000 h -1。还建立了扩大的底物范围,包括富电子和电子不足的苯胺,脂肪族伯胺,仲胺。这项工作为有效合成有价值的尿素提供了一种简单,经济,绿色的方法。
[EN] METHOD OF CONVERTING CARBON DIOXIDE INTO CARBONYL COMPOUNDS<br/>[FR] PROCÉDÉ DE CONVERSION DE DIOXYDE DE CARBONE EN COMPOSÉS CARBONYLE
申请人:TRANSLATIONAL HEALTH SCIENCE AND TECH INSTITUTE
公开号:WO2019073484A1
公开(公告)日:2019-04-18
The present invention provides a method for fixing carbon dioxide gas as a carbonyl compound represented by formula (3) as depicted by Figure 1 and comprising, purging of carbon dioxide in a solution of a nucleophile represented by the formula (1) in presence of a solvent at a temperature ranging from -40 Degree Celsius to 35 Degree Celsius, followed by adding a reagent at temperature ranging from -40 degree to 35 degree and thereafter adding another nucleophile represented by the formula (2) to obtain carbonyl compound represented by formula (3). The present invention can be advantageously used to obtain commercially important carbonyl compounds and clean unwanted carbon dioxide gas from the atmosphere and industrial effluents.
BENZAMIDE DERIVATIVE WITH ANTICANCER ACTIVITY AND PREPARATION METHOD AND USE THEREOF
申请人:Bai Hua
公开号:US20130225810A1
公开(公告)日:2013-08-29
Provided are a benzamide derivative as shown in formula (I) or a pharmaceutically acceptable salt thereof, and the preparation method and use thereof for preparing a medicine for treating cancer, wherein the group definitions of formula (I) are as set out in the description.