Alanine triazole iridium-catalyzed C–N bond formation through borrowing hydrogen strategy
作者:Xiaoli Yu、Ranran Zhao、Huida Wan、Yongchun Yang、Dawei Wang
DOI:10.1016/j.tetlet.2016.08.093
日期:2016.10
An efficient synthesis of secondary amines has been described through alanine triazole iridium-catalyzed C–N bond formation of an aromatic amine and an alkyl amine using the borrowing hydrogen strategy. In addition, it was observed that alanine triazole iridium is also an efficient catalyst to promote C–N bond formation of an aromatic amine and alcohols with good to excellent yields.
Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>/EDAC–Pd(0) as a novel and efficient inorganic/organic magnetic composite: sustainable catalyst for the benzylic C–H bond oxidation and reductive amination under mild conditions
作者:Madhvi Bhardwaj、Harsha Sharma、Satya Paul、James H. Clark
DOI:10.1039/c5nj03413b
日期:——
Magnetically recyclable ethylene diamine functionalized inorganic/organic composite, Fe3O4@SiO2/EDAC–Pd(0) for selective C–H bond oxidation and reductive amination under sustainable reaction media.
use of amino alcohols as alkylating agents was demonstrated. The catalyst tolerates numerous functional groups, including hydrogenation‐sensitive examples. Compared to many other alcohol‐based amine alkylation methods, where a stoichiometric amount of base is required, our Cr‐based catalyst system gives yields higher than 90 % for various alkyl amines with a catalytic amount of base. Our study indicates
Designed pincer ligand supported Co(<scp>ii</scp>)-based catalysts for dehydrogenative activation of alcohols: Studies on <i>N</i>-alkylation of amines, α-alkylation of ketones and synthesis of quinolines
作者:Anshu Singh、Ankur Maji、Mayank Joshi、Angshuman R. Choudhury、Kaushik Ghosh
DOI:10.1039/d0dt03748f
日期:——
Base-metal catalysts Co1, Co2 and Co3 were synthesized from designed pincerligands L1, L2 and L3 having NNN donor atoms respectively. Co1, Co2 and Co3 were characterized by IR, UV–Vis. and ESI-MS spectroscopic studies. Single crystal X-ray diffraction studies were investigated to authenticate the molecular structures of Co1 and Co3. Catalysts Co1, Co2 and Co3 were utilized to study the dehydrogenative
Cooperative catalysis of molybdenum with organocatalysts for distribution of products between amines and imines
作者:Di Wu、Qingqing Bu、Cheng Guo、Bin Dai、Ning Liu
DOI:10.1016/j.mcat.2021.111415
日期:2021.3
Multi-amino groups and nitrogen donors compound was discovered as an organocatalyst for N-alkylation of alcohols with amines in the presence of Mo(CO)6. The Mo(CO)6/organocatalyst binary system has shown to be a highly active catalyst for the N-alkylation reaction between alcohols and amines with excellent tolerance of variable starting materials bearing different functional groups. Of particular note