A new protocol for the dearylation of arylphosphine oxides was developed using sodium hydride (NaH) in the presence of lithium iodide (LiI). The transient sodium phosphinite could be functionalized with a range of electrophiles in a one-pot fashion.
Synthesis, Lanthanide Coordination Chemistry, and Liquid–Liquid Extraction Performance of CMPO-Decorated Pyridine and Pyridine <i>N</i>-Oxide Platforms
作者:Daniel Rosario-Amorin、Sabrina Ouizem、Diane A. Dickie、Yufeng Wen、Robert T. Paine、Jian Gao、John K. Grey、Ana de Bettencourt-Dias、Benjamin P. Hay、Lætitia H. Delmau
DOI:10.1021/ic3025342
日期:2013.3.18
tetradentate chelate structures are obtained for several 1:1 complexes of 9 while a pentadentate chelate structure is observed with 10. Emission spectroscopy for one complex, [Eu(9)(NO3)3], in methanol, shows that the Eu(III) ion resides in a low-symmetry site. Lifetime measurements for methanol and deuterated methanol solutions indicate the presence of four methanol molecules in the inner coordination sphere
描述了一组新的配体的合成,所述新的配体包含一个或两个连接在吡啶和吡啶N-氧化物平台上的氨基甲酰基甲基膦氧化物(CMPO)片段。分子力学分析为吡啶气相镧系元素-配体相互作用Ñ -oxides指示该三官能NOPOCO分子,2 - [PH 2 P(O)] [C(O)净2 ] C(H)}℃ 5 ħ 4 NO(7)和2-[Ph 2 P(O)] [C(O)NEt 2 ] CHCH 2 } C 5 H 4 NO(8)和五官能NOPOP'O'COC'O'分子,2 ,6-[Ph 2 P(O)] [C(O)NEt2 ] C(H)} 2 C 5 H 3 NO(9)和2,6-[Ph 2 P(O)] [C(O)NEt 2 ] CHCH 2 } 2 C 5 H 3 NO(10)应当能够以最小的应变分别采用三齿和五齿螯合物结构。作为对这些预测的检验,对N-氧化物衍生物的选定镧系配位化学进行了研究。晶体结构分析揭示了含有7而8的1:1
A New Hybrid Cmpo/Nopopo Ligand: Synthesis and Selected Lanthanide Coordination Chemistry
作者:Daniel Rosario-Amorin、Diane A. Dickie、Yufeng Wen、Robert T. Paine
DOI:10.1080/10426507.2012.743135
日期:2013.1.1
Abstract A two-step synthesis for 2,6-bis[(diphenyl)-N,N-diethylcarbamoylmethylphosphine oxide]pyridine N-oxide (3) from 2,6-bis[(diphenylphosphinoyl)methyl]pyridine is reported along with coordinationchemistry with Dy(III) and Yb(III). Crystal structure determinations for the ligand 3S,S and 1:1 complexes [Dy(3R,S )(NO3)3]·(Me2CO) and [Yb(3R,S )(NO3)3]·(Me2CO) are described. In these complexes, the
Phosphorylmethylpyridines and their N-oxides: Synthesis and equilibrium CH-acidity
作者:G. V. Bodrin、A. G. Matveeva、M. I. Terekhova、E. I. Matrosov、�. S. Petrov、Yu. M. Polikarpov、M. I. Kabachnik
DOI:10.1007/bf00958579
日期:1991.4
Certain phosphorylmethylpyridines and their N-oxides were synthesized, which are of interest as extractants and complex-forming agents. Their equilibrium CH-acidity with reference to 9-phenylfluorene (K+ counterion) was studied by the indicator method in dimethyl sulfoxide. The acidifying action of a series of pyridine groupings was characterized by means of sigma-C- values.
BODRIN, G. V.;MATVEEVA, A. G.;TEREXOVA, M. N.;MATROSOV, E. N.;PETROV, EH.+, IZV. AN CCCP. CEP. XIM.,(1991) N, S. 912-921
作者:BODRIN, G. V.、MATVEEVA, A. G.、TEREXOVA, M. N.、MATROSOV, E. N.、PETROV, EH.+