49749-89-5Relevant academic research and scientific papers
Heterometallic rare-earth metal complexes with imino-functionalized 8-hydroxyquinolyl ligands: Synthesis, characterization and catalytic activity towards hydrophosphinylation of trans-β-nitroalkene
Yuan, Qingbing,Zhou, Shuangliu,Zhu, Xiancui,Wei, Yun,Wang, Shaowu,Mu, Xiaolong,Yao, Fangshi,Zhang, Guangchao,Chen, Zheng
, p. 7626 - 7632 (2015)
Reactions of rare-earth metal amides [(Me3Si)2N]3RE(μ-Cl)Li(THF)3 with different equiv. of 2-(2,6-diisopropylphenylimino)-8-hydroxyquinoline (1) afforded different heterometallic rare-earth metal complexes, and catalytic activity of the resulting complexes was investigated. Reactions of rare-earth metal amides [(Me3Si)2N]3RE(μ-Cl)Li(THF)3 (RE = Y, Er, Dy) with 1 equiv. of compound 1 afforded the heterobimetallic rare-earth metal and lithium complexes 2-4 bridged by the oxygen atom of 2-(2,6-diisopropylphenylimino)-8-hydroxyquinoline and the nitrogen atom of N(SiMe3)2. However, the treatment of rare-earth metal amides [(Me3Si)2N]3RE(μ-Cl)Li(THF)3 (RE = Sm, Er, Yb) with 2 equiv. of compound 1 gave different heterobimetallic rare-earth metal and lithium complexes 5-7 bridged by the oxygen atoms of 2-(2,6-diisopropylphenylimino)-8-hydroxyquinoline. Complex 6 can also be prepared by the treatment of 3 with 1 equiv. of 1. Complexes 2-7 were fully characterized using spectroscopic methods, elemental analyses and single crystal X-ray diffraction. Investigation of the catalytic properties of the complexes indicated that all complexes exhibited a high catalytic activity towards the addition of diphenylphosphine oxide to trans-β-nitroalkenes to afford β-nitrophosphonates under mild conditions.
1,1-Diaminoazines as organocatalysts in phospha-Michael addition reactions
Bharatam, Prasad V.,Chourasiya, Sumit S.,Kathuria, Deepika,Wani, Aabid A.
supporting information, p. 11717 - 11720 (2021/11/12)
1,1-Diaminoazines can act as effective organocatalysts for the formation of phosphorus-carbon bonds between biphenylphosphine oxide and an activated alkene (Michael acceptor). These catalysts provide the P-C adducts at a faster rate and with relatively be
NCC Pincer Ni (II) Complexes Catalyzed Hydrophosphination of Nitroalkenes with Diphenylphosphine
Yan, Jing,Wang, Yan-Bing,Hou, Senyao,Shi, Linlin,Zhu, Xinju,Hao, Xin-Qi,Song, Mao-Ping
, (2020/08/21)
An efficient NCC pincer Ni (II)-catalyzed hydrophosphination of nitroalkenes with diphenylphosphine has been developed. Under the optimized conditions, both (hetero)aromatic and aliphatic nitroalkenes were well tolerated, irrespective of electronic effect, to provide the corresponding products in up to 99% yield.
Visible light-promoted metal-free aerobic oxyphosphorylation of olefins: A facile approach to β-ketophosphine oxides
Shi, Yun,Chen, Rongshun,Guo, Kang,Meng, Fei,Cao, Shujun,Gu, Chen,Zhu, Yingguang
supporting information, p. 2062 - 2065 (2018/04/30)
A metal-free direct aerobic oxyphosphorylation of alkenes with H-phosphine oxides has been developed utilizing visible light photoredox catalysis. A variety of β-ketophosphine oxides have been obtained in good yields from simple olefins under air with ine
Synthesis, characterization and catalytic activity of rare-earth metal amides incorporating cyclohexyl bridged bis(β-diketiminato) ligands
Miao, Hui,Wang, Shaowu,Zhu, Xiancui,Zhou, Shuangliu,Wei, Yun,Yuan, Qingbing,Mu, Xiaolong
, p. 42792 - 42799 (2017/09/15)
A series of organo rare-earth metal amides incorporating chiral cyclohexyl bridged bis(β-diketiminato) ligands with general formula LREN(SiMe3)2 (L1 = (1S,2S)-1,2-Cy[NC(Me)CHC(Me)NAr]2, Ar = 2, 6-Et2C
Conjugate addition nitro-Mannich reaction of carbon and heteroatom nucleophiles to nitroalkenes
Anderson, James C.,Kalogirou, Andreas S.,Tizzard, Graham J.
, p. 9337 - 9351 (2015/03/05)
The conjugate addition nitro-Mannich reactions of ethyl-β-nitroacrylate (1) and β-nitrostyrene (2) with electron rich aromatic nucleophiles, stabilized carbanions, alcohols, amines, thiols, and diphenyl phosphine oxide were investigated. The one pot conju
Conjugate phosphination of cyclic and acyclic acceptors using Rh(I)-phosphine or Rh(I)-carbene complexes. Probing the mechanism with chirality at the silicon atom or the phosphorus atom of the Si-P reagent
Trepohl, Verena T.,Fr?hlich, Roland,Oestreich, Martin
experimental part, p. 6510 - 6518 (2011/02/26)
The Rh(I)-catalyzed conjugate phosphinyl transfer from an Si-P reagent to an electron-deficient acceptor requires individual protocols for cyclic and acyclic α,β-unsaturated carbonyls and carboxyls. While 1,4-addition to cyclic acceptors is catalyzed by a
Palladium(II)-catalyzed conjugate phosphination of electron-deficient acceptors
Trepohl, Verena T.,Mori, Susumu,Itami, Kenichiro,Oestreich, Martin
supporting information; experimental part, p. 1091 - 1094 (2009/07/25)
A general protocol for the conjugate transfer of diphenyl-, dicyclohexyl-, and di-tert-butylphosphinyl groups from silylphosphines to cyclic and acyclic electron-deficient acceptors employing a bench-stable palladium(II) catalyst is reported. Several Eand
