Intramolecular addition of diarylmethanols to imines promoted by KOt-Bu/DMF: a new synthetic approach to indole derivatives
作者:Jia-hua Chen、Zi-cong Chen、Hong Zhao、Ting Zhang、Wei-juan Wang、Yong Zou、Xue-jing Zhang、Ming Yan
DOI:10.1039/c6ob00423g
日期:——
KOt-Bu/DMF promoted intramolecular addition of diarylmethanols to imines was developed. A series of 2,3-disubstituted indoles was obtained in good yields. A reaction mechanism of radical cyclization and subsequent dehydration is proposed.
开发了KO t -Bu / DMF促进的二芳基甲醇分子内加成至亚胺。以高收率获得了一系列的2,3-二取代的吲哚。提出了自由基环化和随后脱水的反应机理。
Gold-catalyzed amide synthesis from aldehydes and amines in aqueous medium
作者:Gai-Li Li、Karen Ka-Yan Kung、Man-Kin Wong
DOI:10.1039/c2cc17689k
日期:——
An efficient gold-catalyzed amide synthesis from aldehydes and amines in aqueousmedium under mild reaction conditions has been developed.
在温和的反应条件下,由醛和胺在水性介质中有效合成金催化的酰胺已得到开发。
Visible‐Light‐Mediated Oxidative Amidation of Aldehydes by Using Magnetic CdS Quantum Dots as a Photocatalyst
SEM, TEM, energy‐dispersive X‐ray spectroscopy, and vibrating‐sample magnetometer techniques. Fe3O4/PDA/CdS was found to be a highly active photocatalyst for the amidation of aromatic aldehydes by using air as a clean oxidant under mild conditions. The photocatalyst can be recovered by magnetic separation and successfully reused for five cycles without considerable loss of its catalytic activity.
磁性CdS量子点(Fe 3 O 4 /聚多巴胺(PDA)/ CdS)通过廉价的起始原料通过便捷的方法合成。通过FTIR光谱,XRD,SEM,TEM,能量色散X射线光谱和振动样品磁力计技术对制得的催化剂进行表征。通过在温和条件下使用空气作为清洁氧化剂,发现Fe 3 O 4 / PDA / CdS是一种高活性的光催化剂,可用于芳族醛的酰胺化。可以通过磁分离回收光催化剂并成功地重复使用五个循环,而不会显着降低其催化活性。
Room Temperature Deoxyfluorination of Benzaldehydes and α-Ketoesters with Sulfuryl Fluoride and Tetramethylammonium Fluoride
作者:Patrick R. Melvin、Devin M. Ferguson、Sydonie D. Schimler、Douglas C. Bland、Melanie S. Sanford
DOI:10.1021/acs.orglett.9b00054
日期:2019.3.1
A method for the room temperature deoxyfluorination of benzaldehydes and α-ketoesters using sulfurylfluoride and Me4NF is described. A large scope of aryl and heteroaryl substrates is demonstrated, and this method compares favorably to other common deoxyfluorination methods for many substrates.
The present invention provides benzodiazepine derivatives of the following formula, analogs thereof and pharmaceutically acceptable salts thereof. The compounds of the present invention have an excellent effect of inhibiting activated blood-coagulation factor X. These compounds are usable as agents for treating various diseases concerned with the activated blood-coagulation factor X.
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