N,N‐Dimethylaminophenyl moiety is a common fragment in medicinal chemistry as several pharmaceuticals bearing this privileged motif are on the market and under clinical evaluation. Oxidative N‐demethylation is generally regarded as the major metabolic pathway. However, pharmacokinetics, metabolites studies as well as the further structural modification are precluded by the impracticality of chemical
Photocatalytic Degradation of Michler's Ketone in Water by UV Light Illumination Using TiO<sub>2</sub>Photocatalyst: Identification of Intermediates and the Reaction Pathway
The TiO2/UV photocatalyticdegradation of Michler'sKetone (MK) has been investigated in aqueous heterogeneous suspensions. Results obtained show rapid and complete oxidation of MK after 24‐h, and more than 97.5% of MK was mineralized after a 32‐h exposure to UV‐365 nm irradiation. Establishment of the reactionpathway was made possible by a thorough analysis of the reaction mixture identifying the
A series of bismuth oxyiodide (BiOxIy)-grafted graphene oxide (GO) sheets with different GO contents were synthesized through a simple hydrothermal method. This is the first report where four composites of BiOI/GO, Bi4O5I2/GO, Bi7O9I3/GO, and Bi5O7I/GO have been characterized using X-ray diffraction, transmission electron microscopy, scanning electron microscopy energy-dispersive spectroscopy, Fourier
通过简单的水热法合成了一系列GO含量不同的氧化碘化铋(BiO x I y)接枝氧化石墨烯(GO)片。这是第一份报告,其中使用X射线衍射,透射电子表征了BiOI / GO,Bi 4 O 5 I 2 / GO,Bi 7 O 9 I 3 / GO和Bi 5 O 7 I / GO的四种复合物。显微镜,扫描电子显微镜能量色散光谱,傅立叶变换红外光谱,X射线光电子光谱和漫反射光谱。组装的BiO x I y/ GO复合材料在可见光照射下对结晶紫(CV)的降解表现出出色的光催化活性。速率常数的顺序如下:Bi 7 O 9 I 3 / GO> Bi 4 O 5 I 2 / GO> Bi 4 O 5 I 2 > Bi 7 O 9 I 3 > Bi 5 O 7 I / GO> BiOI / GO> BiOI> Bi 5 O 7 I> GO。Bi 7 O 9 I 3 / GO(或Bi 4 O5 I 2 / GO)复合材料的最大速率常数为0
Compositions And Methods For Visible-Light-Controlled Ruthenium-Catalyzed Olefin Metathesis
申请人:The Trustees of Columbia University in the City of New York
公开号:US20220219155A1
公开(公告)日:2022-07-14
The present disclosure provides compositions and methods for metathesizing a first alkenyl or alkynyl group with a second alkenyl or alkynyl group, the composition comprising a ruthenium metathesis catalyst and a photoredox catalyst that is activated by visible light.