Die Synthese von all-trans-Retinylamin und anderen Polyenaminen
摘要:
AbstractThe preparation of various polyene phthalimides using the azocarboxylate method is described. The imides are converted into the corresponding amines by reaction with hydrazine. In this way all‐trans‐retinylamine and β‐ionylamine have been obtained.
General and selective synthesis of primary amines using Ni-based homogeneous catalysts
作者:Kathiravan Murugesan、Zhihong Wei、Vishwas G. Chandrashekhar、Haijun Jiao、Matthias Beller、Rajenahally V. Jagadeesh
DOI:10.1039/d0sc01084g
日期:——
Ni-triphos complex as the first Ni-based homogeneous catalyst for both reductive amination of carbonyl compounds with ammonia and hydrogenation of nitroarenes to prepare all kinds of primary amines. Remarkably, this Ni-complex enabled the synthesis of functionalized and structurally diverse benzylic, heterocyclic and aliphatic linear and branched primary amines as well as aromatic primary amines starting
Reusable Nickel Nanoparticles‐Catalyzed Reductive Amination for Selective Synthesis of Primary Amines
作者:Kathiravan Murugesan、Matthias Beller、Rajenahally V. Jagadeesh
DOI:10.1002/anie.201812100
日期:2019.4
The preparation of nickel nanoparticles as efficient reductive amination catalysts by pyrolysis of in situ generated Ni‐tartaric acid complex on silica is presented. The resulting stable and reusable Ni‐nanocatalyst enables the synthesis of functionalized and structurally diverse primary benzylic, heterocyclic and aliphatic amines starting from inexpensive and readily available carbonyl compounds and
Formation of domain structure of erythrocyte membrane in Wistar rat fed with CeCl3 per os
作者:Yi Cheng、Maozi Liu、You Li、Rongchang Li、Chunli Bai、Kui Wang
DOI:10.1007/bf02884943
日期:2000.3
To explore the possibility of absorption of lanthanides via digestive duct and their effects on the membrane structure and permeability of erythrocytes, the fine structure of erythrocyte membrane from Wistar rats, fed for 70 days of daily administration per os with 20 mg CeCl3/kg weight, was imaged by means of atomic force microscopy and FT-IR deconvolution spectra. The results show that, although the erythrocytes maintain the intact shape, the change of secondary structure, aggregation and crosslinking of the protein particles of membrane surface and the enlarged lipid regions lead to the domain structure formation. This structure might be responsible for the increasing permeability of erythrocyte membrane.