17477-67-7Relevant academic research and scientific papers
Synthesis and characterization of ytterbium guanidinates stabilized by bridged bis(phenolate) ligand and their application for the hydrophosphonylation reaction of aldehydes
Zeng, Tinghua,Qian, Qinqin,Wang, Yaorong,Yao, Yingming,Shen, Qi
, p. 14 - 20 (2015/02/18)
A series of ytterbium guanidinato complexes stabilized by an amine-bridged bis(phenolate) ligand were prepared, and their catalytic property for the hydrophosphonylation reaction of aldehydes was explored. Metathesis reactions of amine-bridged bis(phenola
Amido rare-earth complexes supported by an ansa bis(amidinate) ligand with a rigid 1,8-naphthalene linker: Synthesis, structures and catalytic activity in rac-lactide polymerization and hydrophosphonylation of carbonyl compounds
Yakovenko, Marina V.,Udilova, Natalia Yu.,Glukhova, Tatyana A.,Cherkasov, Anton V.,Fukin, Georgy K.,Trifonov, Alexander A.
, p. 1083 - 1093 (2015/02/19)
A synthetic approach to rare-earth amido complexes coordinated by an ansa bis(amidinate) ligand with a 1,8-naphthalene linker was developed and allowed for the synthesis of a series of complexes [1,8-C10H6{NC(tBu)N-2,6-Me2
Synthesis, structure, and catalytic activity of novel trinuclear rare-earth metal amido complexes incorporating μ-η5:η1 bonding indolyl and μ3-oxo groups
Yang, Song,Zhu, Xiancui,Zhou, Shuangliu,Wang, Shaowu,Feng, Zhijun,Wei, Yun,Miao, Hui,Guo, Liping,Wang, Fenhua,Zhang, Guangchao,Gu, Xiaoxia,Mu, Xiaolong
supporting information, p. 2521 - 2533 (2014/02/14)
The reactions of different pyrrolyl-functionalized indoles with rare-earth metal(iii) amides [(Me3Si)2N]3RE III(μ-Cl)Li(THF)3 (RE = Yb, Er, Dy, Eu, Y) produced different kinds of rare-earth metal amid
N -BuLi as a highly efficient precatalyst for hydrophosphonylation of aldehydes and unactivated ketones
Liu, Chengwei,Zhang, Yu,Qian, Qinqin,Yuan, Dan,Yao, Yingming
supporting information, p. 6172 - 6175 (2015/01/09)
It was found for the first time that organic alkali metal compounds serve as highly efficient precatalysts for the hydrophosphonylation reactions of aldehydes and unactivated ketones with dialkyl phosphite under mild conditions. For ketone substrates, a reversible reaction was observed, and the influence of catalyst loading and reaction temperature on the reaction equilibrium was studied in detail. Overall, the hydrophosphonylation reactions catalyzed by 0.1 mol % n-BuLi were completed within 5 min for a broad range of substrates and generated a series of α-hydroxy phosphonates in high yields.
Synthesis and characterization of amidate rare-earth metal amides and their catalytic activities toward hydrophosphonylation of aldehydes and unactivated ketones
Zhao, Lu,Ding, Hao,Zhao, Bei,Lu, Chengrong,Yao, Yingming
, p. 50 - 59 (2015/01/09)
Two novel amidate rare-earth metal amides Ln[N(SiMe3)2](κ2-L1)2(THF) (L1 = C6H5C(O)NC6H3(iPr)2) (Ln = Yb (1), Y (2)) were p
Reaction of HppE with substrate analogues: Evidence for carbon-phosphorus bond cleavage by a carbocation rearrangement
Chang, Wei-Chen,Mansoorabadi, Steven O.,Liu, Hung-Wen
supporting information, p. 8153 - 8156 (2013/07/05)
(S)-2-Hydroxypropylphosphonic acid ((S)-2-HPP) epoxidase (HppE) is an unusual mononuclear non-heme iron enzyme that catalyzes the oxidative epoxidation of (S)-2-HPP in the biosynthesis of the antibiotic fosfomycin. Recently, HppE has been shown to accept (R)-1-hydroxypropylphosphonic acid as a substrate and convert it to an aldehyde product in a reaction involving a biologically unprecedented 1,2-phosphono migration. In this study, a series of substrate analogues were designed, synthesized, and used as mechanistic probes to study this novel enzymatic transformation. The resulting data, together with insights obtained from density functional theory calculations, are consistent with a mechanism of HppE-catalyzed phosphono group migration that involves the formation of a carbocation intermediate. As such, this reaction represents a new paradigm for biological C-P bond cleavage.
Copper-catalyzed synthesis of α-hydroxy phosphonates from H-phosphonates and alcohols or ethers
Zhao, Zengxiang,Xue, Wanhua,Gao, Yuxing,Tang, Guo,Zhao, Yufen
supporting information, p. 713 - 716 (2013/05/09)
Easy PC: α-Hydroxy phosphonates were synthesized by copper/tert-butyl hydroperoxide (TBHP)-catalyzed oxidative addition reactions of H-phosphonates with alcohols or ethers. Diverse α-hydroxy phosphonates were obtained from substituted benzyl alcohols or alkyl alcohols and alkyl ethers in moderate to good yields. Copyright
Lanthanide amido complexes incorporating amino-coordinate-lithium bridged bis(indolyl) ligands: Synthesis, characterization, and catalysis for hydrophosphonylation of aldehydes and aldimines
Zhu, Xiancui,Wang, Shaowu,Zhou, Shuangliu,Wei, Yun,Zhang, Lijun,Wang, Fenhua,Feng, Zhijun,Guo, Liping,Mu, Xiaolong
experimental part, p. 7134 - 7143 (2012/08/08)
Two series of new lanthanide amido complexes supported by bis(indolyl) ligands with amino-coordinate-lithium as a bridge were synthesized and characterized. The interactions of [(Me3Si)2N] 3LnIII(μ-Cl)Li(THF)su
Synthesis and characterization of organolanthanide complexes with a calix[4]-pyrrolyl ligand and their catalytic activities toward hydrophosphonylation of aldehydes and unactivated ketones
Zhou, Shuangliu,Wang, Hengyu,Ping, Jian,Wang, Shaowu,Zhang, Lijun,Zhu, Xiancui,Wei, Yun,Wang, Fenhua,Feng, Zhijun,Gu, Xiaoxia,Yang, Song,Miao, Hui
experimental part, p. 1696 - 1702 (2012/04/23)
The alkali metal salt free dinuclear trivalent lanthanide amido complexes (η5:η1:η5:η1-Et 8-calix[4]-pyrrolyl){LnN(SiMe3)2}2 (Ln = Nd (2), Sm (3), Gd (4)) were prepare
An efficient and general route to the synthesis of diethyl α,α-bromofluorophosphonates
Fu, Jian-Ping,He, Yan-Hong,Zhong, Jun,Yang, Yang,Deng, Xiang,Guan, Zhi
experimental part, p. 636 - 640 (2011/10/01)
An efficient and general two-step halogenation procedure to prepare diethyl α,α-bromofluorophosphonates was described, which included bromination by PPh3, 2,3-dichloro-5,6-dicyanobenzquinone (DDQ) and n-Bu4NBr, and electrophilic fluo
