97995-93-2Relevant articles and documents
[5.5]-P-spirocyclic chiral triaminoiminophosphorane-catalyzed asymmetric hydrophosphonylation of aldehydes and ynones daisuke uraguchi1
Ito, Takaki,Kimura, Yuto,Nobori, Yumiko,Sato, Makoto,Ooi, Takashi
, p. 546 - 555 (2017)
Development of highly efficient and enantioselective hydrophosphonylations of aldehydes and ynones mediated by [5.5]- P-spirocyclic chiral triaminoiminophosphoranes as base catalysts is described. The strong basicity of the iminophosphoranes and hydrogen-
Evidence for substrate binding by the lanthanide centers in [Li 3(thf)n(binolate)3Ln]: Solution and solid-state characterization of seven- and eight-coordinate [Li3(sol) n(binolate)3Ln(S)
Wooten, Alfred J.,Carroll, Patrick J.,Walsh, Patrick J.
, p. 2549 - 2552 (2006)
(Chemical Equation Presented) A close bond: The heterobimetallic complexes [M3(thf)n(binolate)3Ln] (M = Li, Na, K) are among the most effective asymmetric Lewis acid catalysts. Previous solution and solid-state studies pro
Wooten, Alfred J.,Carroll, Patrick J.,Walsh, Patrick J.
, p. 2549 - 2552 (2006)
(Chemical Equation Presented) A close bond: The heterobimetallic complexes [M3(thf)n(binolate)3Ln] (M = Li, Na, K) are among the most effective asymmetric Lewis acid catalysts. Previous solution and solid-state studies pro
An efficient and simple strategy toward the synthesis of highly functionalized compounds
Jmai, Momtez,Efrit, Mohamed Lotfi,Dubreuil, Didier,Blot, Virginie,Lebreton, Jacques,M'rabet, Hédi
, p. 978 - 995 (2021/08/06)
The expedient syntheses of small libraries of ((β-ethoxycarbonyl, -cyano and -acetyl)propyloxy) methylphosphonate scaffolds bearing olefin, sulfanyl, or amine functions are described. All these new derivatives are readily produced from easily available starting reagents (aldehydes, electron-poor olefins, and dialkylphosphites) following a three steps reaction sequence of condensations, SN2′-type reaction and a conjugated thia- or aza-Michael 1,4-addition with aromatic and aliphatic thiol or amine nucleophiles.
Synthesis and anticancer cytotoxicity with structural context of an α-hydroxyphosphonate based compound library derived from substituted benzaldehydes
Rádai, Zita,Windt, Tímea,Nagy, Veronika,Füredi, András,Kiss, Nóra Zsuzsa,Ranelovi?, Ivan,Tóvári, József,Keglevich, Gy?rgy,Szakács, Gergely,Tóth, Szilárd
supporting information, p. 14028 - 14035 (2019/09/18)
We synthesized substituted benzaldehyde derived α-hydroxyphosphonates (αOHP), α-hydroxyphosphonic acids (αOHPA) and α-phosphinoyloxyphosphonates (αOPP) and characterized their cytotoxicity against a panel of cancer cell lines. A library containing 56 analogues was screened against Mes-Sa parental and Mes-Sa/Dx5 multidrug resistant uterine sarcoma cell lines, using a fluorescence-based cytotoxicity assay. The cytotoxicity screening revealed that dibenzyl-αOHPs and dimethyl-α-diphenyl-OPPs were the most active clusters, which encouraged us to synthesize further dibenzyl-α-diphenyl-OPP derivatives that elicited pronounced cell killing. Further structure-activity relationships showed the relevance of hydrophobicity and the position of substituents on the main benzene ring as determinants of toxicity. The most active analogs proved to be equally, or even more toxic to the multidrug resistant (MDR) cell line Mes-Sa/Dx5, suggesting these compounds may overcome P-glycoprotein mediated multidrug resistance by evading the drug transporter.
Phosphorylation of (1-aryl-1-hydroxymethyl)phosphonates
Rádai, Zita,Hodula, Viktória,Kiss, Nóra Zsuzsa,Kóti, János,Keglevich, Gy?rgy
, p. 153 - 154 (2019/04/25)
The reaction of dimethyl (1-aryl-1-hydroxymethyl)phosphonates with 1-chloro-3-phospholene 1-oxides, diphenylphosphinic chloride or diphenyl chloridophosphonate affords the corresponding (1-phosphoryloxymethyl)phosphonates. The products with two different
