The present invention relates to novel triazine compounds of formula (1), methods of their preparation, pharmaceutical compositions containing these compounds and the use of these compounds to treat proliferative disorders such as tumors and cancers and also other conditions and disorders related to or associated with dysregulation of PI3 Kinases, PI3 Kinase pathway, mTOR and/or the mTOR pathway.
Potassium tert-Butoxide Facilitated Amination of Carboxylic Acids with N,N-Dimethylformamide
作者:Jing Zhang、Yuanjing Huang
DOI:10.1055/a-1817-1965
日期:2022.8
Herein a practical and efficient potassium tert-butoxide (KO t Bu)-facilitated amination of carboxylic acids with N,N-dimethylamine is described. In the presence of catalytic amount of KO t Bu, a variety of aliphatic and aromatic carboxylic acids are transformed to N,N-dimethylamides using DMF as the dimethylamine reagent with the assistance of trimethylacetic anhydride. The applicability of this protocol
本文描述了一种实用且有效的叔丁醇钾 (KO t Bu)-促进羧酸与N , N-二甲胺的胺化。在催化量的 KO t Bu 存在下,在三甲基乙酸酐的帮助下,使用 DMF 作为二甲胺试剂,多种脂肪族和芳香族羧酸转化为N,N-二甲基酰胺。该协议的适用性通过复杂药物分子的后期二甲基酰胺化得到证明。涉及 KO t的似是而非的反应机制 在机理研究的基础上,提出了由甲酰胺分解和酸酐介导的缩合促进 Bu 促进的原位胺生成。
US9481670B2
申请人:——
公开号:US9481670B2
公开(公告)日:2016-11-01
Synthesis and electrochemical study of iron, chromium and tungsten aminocarbenes: Role of ligand structure and central metal nature
作者:Irena Hoskovcová、Jana Roháčová、Dalimil Dvořák、Tomáš Tobrman、Stanislav Záliš、Radka Zvěřinová、Jiří Ludvík
DOI:10.1016/j.electacta.2010.02.057
日期:2010.11
(b) the substitution on the carbene ligand and (c) the nature of the central metal atom. The analysis of measured data confirms that the reduction center is localized on the carbene moiety and is strongly influenced by both electronic and sterical properties of its substituents. The oxidation proceeds on the metal and depends mainly on its nature and on the π-acidity of the ligands. Electrochemistry
TMSOTf acts as Lewis acid to activate carbamoyl chlorides and generates highly electrophilic carbamoyl triflates in situ; these are active species for late‐stage aromatic carbamoylation.