作者感谢西班牙政府经济与竞争部长 (MINECO)(赠款编号 CTQ2010-14959、MAT2006-01997、MAT2010-15094 和 Factoria de Cristalizacion Consolider Ingenio 2010)、葡萄牙基金(Cristalizacion Consolider Ingenio 2010)的财政支持, 欧盟 (EU), Quadro de Referencia Estrategico Nacional (QREN), Fundo Europeu de Desenvolvimento Regional (FEDER) 和 Programa Operacional Tematico Factores de Competitividade (COMPETE)(项目 PEst-C/QUI/UI0062/2011)。CC 和 V. d. A. 感谢部长级
Functionalization of the unsaturated organophosphorus compounds. Study of reaction of dialkylaminoethynephosphonates with malonic acid derivatives and benzenesulfonylacetonitrile
摘要:
Reactions of some CH-acids with dimethyl dialkylaminoethynephosphonates were studied aiming to develop methods of syntheses of the functionalized organophosphorus compounds. Reactions with malonodinitrile, ethyl cyanoacetate, and benzenesulfonylacetonitrile were shown to proceed effectively in anhydrous acetonitrile in the presence of catalytic amounts of potassium carbonate to form products of CHacids addition at the triple bond followed by prototropic isomerization to give the corresponding beta-dialkylamino-beta-phosphonomethyl-alpha-substituted acrylonitriles. In reaction with malonic acid aminoethynephosphonates are hydrolyzed to form phosphonoacetic acid dialkylamides as main products.
Iridium(I)-Catalyzed Intramolecular Hydrocarbonation of Alkenes: Efficient Access to Cyclic Systems Bearing Quaternary Stereocenters
作者:David F. Fernández、Moisés Gulías、José L. Mascareñas、Fernando López
DOI:10.1002/anie.201705105
日期:2017.8.1
wide variety of cyclic systems featuring methyl-substituted quaternary stereocenters is described. The method relies on the use of a cationic IrI–bisphosphine catalyst, which promotes a carboxamide-assisted activation of an olefinic C(sp2)−H bond followed by exo-cyclization to a tethered 1,1-disubstituted alkene. The extension of the method to aromatic and heteroaromatic C−H bonds, as well as developments
Synthesis and molecular structures of mercury(II) complexes of carbamoylmethylphosphoryl ligands
作者:Daniel Rosario-Amorin、Jérémy P. Dehaudt、Linda J. Caudle、Diane A. Dickie、Robert T. Paine
DOI:10.1080/10426507.2015.1091835
日期:2016.3.3
second [Hg(L)]+ unit. Additional examples of this general reactivity/structure pattern are reported herein. In contrast, in Hg(II) complexes of two CMPO derivatives, in which the amide N-atom is functionalized with a 2-methylpyridine group, the trifunctional phosphine oxides are observed to behave as neutral ligands forming complexes (L′)Hg (NO3)2.
Synthesis of Dialkyl [1,2-Bis(diethylcarbamoyl)ethyl]-phosphonates
作者:Daniel J. Mccabe、Scott M. Bowen、Robert T. Paine
DOI:10.1055/s-1986-31598
日期:——
Trifunctional dialkyl [1,2-bis(diethylcarbamoyl)ethyl] phosphonates 3 have been prepared from the sodium salts 2 of dialkylcarbamoylmethylphosphonates 1 and N,N-diethylchloroacetamide. The compounds 3 have been characterized by microanalyses, mass, I.R., and 1H-N.M.R. spectrometry.
Synthesis and crystal and molecular structure of a methyl N,N-diethylcarbamylmethylenephosphonato dysprosium thiocyanate complex
作者:S.M. Bowen、E.N. Duesler、R.T. Paine
DOI:10.1016/s0020-1693(00)82411-1
日期:1984.5
group P21/c with a = 13.282(4) A, b = 19.168(5) A, c = 9.648(2) A, β = 90.09(2)°, Z = 4, V = 2456.4 A3 and ϱcald = 1.72 g cm−3. The structure was solved by standard heavy atom techniques, and blocked least-squares refinement converged with Rf = 4.7% and RwF = 4.9%. The Dy atom is seven coordinate and bonded in a bidentate fashion to two anionic phosphonate ligands [O2P(OCH3)CH2C(O)N(C2H5)2−] through
作者:I. A. Nuretdinov、I. P. Karaseva、V. P. Gubskaya、I. Ch. Shakirov
DOI:10.1007/bf00703486
日期:1994.10
Dienes containing an alpha-pinene fragment were synthesized from myrtenal and functionally substituted phosphonates. Their structures were studied using (1)NMR, IR, Raman, UV, and CD spectroscopy.