Cooperative Metal–Ligand‐Induced Properties of Heteroleptic Copper(I) Xanthate/Dithiocarbamate PPh
<sub>3</sub>
Complexes
作者:Gunjan Rajput、Vikram Singh、Santosh K. Singh、Lal B. Prasad、Michael G. B. Drew、Nanhai Singh
DOI:10.1002/ejic.201200307
日期:2012.8
Four new heteroleptic mononuclear complexes, [Cu(PPh3)2L1](1) L1 = (C9H11O2CS2–), [2-(4-methoxyphenyl)ethyl]xanthate}, [Cu(PPh3)2L2] (2) [L2 = (C6H7OCS2–), benzylxanthate], [Cu(PPh3)2L3] (3) [L3 = (C5H9OCS2–), (cyclobutylmethyl)xanthate] and [Cu(PPh3)2L4] (4) [L4 = (NC13H13NCS2–), N-benzyl-N-(4-pyridylmethyl)dithiocarbamate], have been synthesized and characterized by using microanalysis, IR, UV/Vis
A General One-Step Synthesis of Multidentate (Pyridylalkyl)amines from Mono-, Bis-, Tris- and Tetrakis(bromomethyl)benzenes: Potential Ligands for Supramolecular Assembly
ligands is of ongoing interest. In this report, the one-step syntheses of a series of (pyridylalkyl)amine derivatives is described. The reported compounds contain both pyridine rings and sp 3 -hybridized nitrogen as potential donor sites. The general synthetic method involves- a room temperature reaction of mono-, bis-, tris-, or tetrakis-(bromomethyl)benzenes with an excess of (pyridylmethyl)amine in
Cooperative Catalysis with Aldehydes and Copper: Development and Application in Aerobic Oxidative CH Amination at Room Temperature
作者:Yinjun Xie、Bo Qian、Pan Xie、Hanmin Huang
DOI:10.1002/adsc.201200944
日期:2013.5.3
formation of an aminal, hydrolysis of the aminal to generate the copper‐amide species, subsequent CH amination and re‐oxidation of copper(I) to copper(II) by oxygen. It not only provides an efficient method to realize the oxidative CH amination of benzoxazoles with free amines at room temperature, but also paves the way for establishing new CN bond formation reactions by using this efficient cooperative
by elemental analysis, spectroscopy (IR, UV–Vis., 1H, 13C and 119Sn NMR) and their structures have been investigated by single crystal X-ray crystallography. In (1,2) the structure has C2 symmetry with the tin atom in a highly distorted octahedral six-coordinate geometry in which the bidentate ligands are asymmetrically bonded and the two nBu groups subtend an angle at the metal of 140.7(1), 141.4(3)°
The acidic cleavage of pyridylmethyl(amino)phosphonates. Formation of the corresponding amines
作者:Bogdan Boduszek
DOI:10.1016/0040-4020(96)00727-2
日期:1996.9
Hydrolysis of 3-pyridylmethyl(amino)phosphonates by means of 20% aq. hydrochloric acid gave corresponding 3-pyridylmethyl(amino)phosphonic acids, as expected. However, hydrolysis of 2- and 4-pyridylmethyl(amino)phosphonates led to decomposition of the phosphonates with a cleavage of CP bond and formation of the corresponding amines. The leaving phosphorus moiety was identified as phosphoric acid.