Calcium-Catalyzed Direct Amination of π-Activated Alcohols
作者:Stefan Haubenreisser、Meike Niggemann
DOI:10.1002/adsc.201000768
日期:2011.2.11
A calcium-catalyzed direct amination of π-activated alcohols with different nitrogen nucleophiles under very mild reaction conditions is presented. The high reactivity of the calcium catalyst allows for an efficient conversion of secondary and tertiary benzylic and allylic as well as tertiary propargylic alcohols. Nitrogen nucleophiles such as carbamates, tosylamides and anilines are readily alkylated
[Fe(F<sub>20</sub>TPP)Cl]-Catalyzed Amination with Arylamines and {[Fe(F<sub>20</sub>TPP)(NAr)](PhINAr)} + . Intermediate Assessed by High-Resolution ESI-MS and DFT Calculations
作者:Yungen Liu、Guo-Qiang Chen、Chun-Wai Tse、Xianguo Guan、Zheng-Jiang Xu、Jie-Sheng Huang、Chi-Ming Che
DOI:10.1002/asia.201402580
日期:2015.1
Amination of CH bonds catalyzed by transition metal complexes via nitrene/imide insertion is an appealing strategy for CN bond formation, and the use of iminoiodinanes, or their in situ generated forms from ‘PhI(OAc)2+primary amides (such as sulfonamides, sulfamates, and carbamates)’, as nitrogen sources for the amination reaction has been well documented. In this work, a ‘metal catalyst+PhI(OAc)2+primary
的Ç胺化经由氮烯/酰亚胺插入由过渡金属配合物催化的H键是对于C一个有吸引力的策略 N键的形成,以及使用iminoiodinanes的,或从“岛(OAC)其在原位产生的形式2个+伯酰胺(如磺酰胺,氨基磺酸盐和氨基甲酸酯等,作为胺化反应的氮源已被充分证明。在这项工作中,使用[Fe(F 20 TPP)Cl](H 2 F 20 TPP = meso- tetrakis(五氟苯基)卟啉)作为“金属催化剂+ PhI(OAc)2 +伯芳基胺”的胺化方案已被开发出来。催化剂。该催化方法适用于sp的分子内和分子间胺化2个SP 3 Ç H键(> 27个实施例),得到氨基化的产品,包括天然产物如吴茱萸,在中度至良好的产率。ESI-MS分析和DFT计算借给的参与支持[铁(F 20 TPP)(NC 6 H ^ 4 - p -NO 2)](PHI = NC 6 H ^ 4 - p -NO 2)}在中间催化。
Nucleophilic Substitution Reactions of Alcohols with Use of Montmorillonite Catalysts as Solid Brønsted Acids
a variety of alcohols with anilines, because the unique acidity of the H-mont catalyst effectively prevents the neutralization by the basic anilines. In addition, amides, indoles, 1,3-dicarbonyl compounds, and allylsilane act as nucleophiles for the H-mont-catalyzed substitutions of alcohols, which allowed efficient formation of various C−N and C−C bonds. The solid H-mont was reusable without any appreciable
The key intermediate in the amination of saturated C–H bonds: synthesis, X-ray characterization and catalytic activity of Ru(TPP)(NAr)2 (Ar = 3,5-(CF3)2C6H3)
The complex Ru(TPP)(NAr)(2) inserts a nitrene group into allylic and benzylic C-H bonds and is the key intermediate in the ruthenium porphyrin-catalyzed amination of hydrocarbons by aryl azides.
Synthesis and catalytic activity of μ-oxo ruthenium(IV) porphyrin species to promote amination reactions
作者:Paolo Zardi、Daniela Intrieri、Daniela Maria Carminati、Francesco Ferretti、Piero Macchi、Emma Gallo
DOI:10.1142/s1088424616500814
日期:2016.8
of their analogous reactivity towards aryl azides to give the same catalytically active bis-imido species RuVI(TPP)(ArN)2. The reaction of [RuIV(TPP)(OCH[Formula: see text]]2O with Ph3CN3 or (CH[Formula: see text]SiN3 afforded [RuIV(TPP)(N[Formula: see text]]2O which was fully characterised, its molecular structure was also determined by single crystal X-ray analysis.