第一个利用酰亚胺自由基的催化策略已经开发出来。这种方法可以通过光催化还原烯丙醇的肟酰亚胺酯来实现烯丙醇的烯烃双官能化。随后的亚氨酸酯自由基经历连续的分子内和分子间反应,通过三种不同的自由基机制提供(i)氢胺化、(ii)氨基烷基化或(iii)氨基芳基化。介绍了这种亚胺酯自由基反应催化方法的广泛范围和实用性,以及与其他 N 中心自由基和互补的闭壳亚胺酯途径的比较。
compounds containing the optically active 2-(4-isopropyl-2-oxazolinyl)-5-phenyl ligand and tert-butyl, methyl and/or phenyl groups on the tin has been synthesized. All the novel compounds have been characterized, especially by means of the multinuclear NMR investigation, the results of which are discussed. The tin halides, as pairs of diastereoisomers in solution, crystallize in the form of one diastereoisomer
The diastereoselective synthesis of octahedral cationic iridium hydride complexes with a stereogenic metal centre
作者:Nicolas Humbert、Clément Mazet
DOI:10.1039/c6cc06020j
日期:——
We report herein the highly diastereoselective synthesis of octahedral cationic Ir(III) hydride complexes with a stereogenic metal centre following various strategies. The configurational stability of these componds has also been...
Oxidation Reaction Catalyst and Process for Producing a Compound Using the Same
申请人:Hayashi Masahiko
公开号:US20070265475A1
公开(公告)日:2007-11-15
It is a problem to be solved by the present invention to provide an oxidation catalyst which, in oxidation of a compound, can efficiently effect oxidation using oxygen in the air as an oxygen source and can be used repeatedly.
The above-mentioned problem was solved by an activated carbon in which the BET specific surface area S determined by a nitrogen adsorption method and the amount of surface oxygen which will leave in the form of carbon monoxide O
CO
(% by weight) satisfy formula (I) 4000