- Spongy gel-like layered double hydroxide-alkaline phosphatase nanohybrid as a biosensing material
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Formation of new bio-nanohybrid material was obtained by immobilization of alkaline phosphatase within a Mg2Al LDH by soft chemistry coprecipitation synthesis, resulting in an original spongy gel-like morphology allowing the preservation of the enzyme structure and activity even at low pH values thanks to the buffering property of the basic host structure. The Royal Society of Chemistry.
- Geraud, Erwan,Prevot, Vanessa,Forano, Claude,Mousty, Christine
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- A Modular Phosphorylated Glycoluril-Derived Molecular Tweezer for Potent Binding of Aliphatic Diamines
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A molecular tweezer based on a glycoluril-derived framework bearing four phosphate groups was synthesized and shown to be capable of binding organic amines in aqueous solution. This work reports the Ka values for 30 complexes of this molecular tweezer and amine guests, determined by means of 1H NMR titrations. Both the hydrophobic cavity and the phosphate groups contribute to the binding. Bulkier molecules and molecules bearing negatively charged groups like carboxylates in amino acids bind less tightly due to a steric clash and coulombic repulsion. The narrow cavity and the strong ionic interactions of the phosphate groups with ammonium guests favor binding of aliphatic diamines. These binding properties clearly distinguish this system from structurally related molecular clips and tweezers.
- Heilmann, Michael,Tiefenbacher, Konrad
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supporting information
p. 12900 - 12904
(2019/11/05)
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- Influence of structural features of tri-functionalized aryl phosphates on the outcome of the SRN1 process with stannyl anions: A DFT study
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Under irradiation, 1,3-bis(diethoxyphosphoryloxy)-4-chlorobenzene (2), 1,4-bis(diethoxyphosphoryloxy)-3-chlorobenzene (3) and 1,3- bis(diethoxyphosphoryloxy)-5-chlorobenzene (4) react with trimethyltinsodium (1) in liquid ammonia giving entirely different distribution of stannylated products. These differences are explained through theoretical DFT studies. Experimental evidence for the involvement of an SRN1 mechanism was obtained.
- Dorn, Viviana B.,Silbestri, Gustavo F.,Lockhart, María T.,Chopa, Alicia B.,Pierini, Adriana B.
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p. 1150 - 1156
(2013/06/27)
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- Phosphonated poly(arylene ether)s as potential high temperature proton conducting materials
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The preparation and characterization of new phosphonated polymeric ionomers based on a fully aromatic poly(arylene ether) backbone with applications as proton exchange membranes for fuel cell is reported. The high-molecular-weight polymers were obtained b
- Abouzari-Lotf, Ebrahim,Ghassemi, Hossein,Shockravi, Abbas,Zawodzinski, Thomas,Schiraldi, David
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experimental part
p. 4709 - 4717
(2012/05/19)
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- A study on the selective phosphorylation and phosphinylation of hydroxyphenols
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By choice of appropriate reaction conditions, the phosphorylation of hydroquinone by diethyl chlorophosphate gave predominantly the monophosphate (2). A similar reaction of phloroglucinol led to the mixture of the possible products (6, 7, and 8). The mono
- Marosi, Gyoergy,Toldy, Andrea,Parlagh, Gyula,Nagy, Zoltan,Ludanyi, Krisztina,Anna, Peter,Keglevich, Gyoergy
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p. 126 - 130
(2007/10/03)
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- o-Hydroxyaryl Diphosphonic Acids
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Treatment of dialkyl aryl phosphates with n-butyllithium or lithium diisopropylamide results in a rearrangement that involves the fission of an oxygen-phosphorus bond and formation of a C-P bond yielding dialkyl (2-hydroxyaryl)phosphonates.A dialkyl (2-hy
- Dhawan, Balram,Redmore, Derek
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p. 4018 - 4021
(2007/10/02)
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- NICKEL-CATALYZED CROSS-COUPLING OF ARYL PHOSPHATES WITH GRIGNARD AND ORGANOALUMINIUM REAGENTS. SYNTHESIS OF ALKYL-, ALKENYL-, AND ARYLBENZENES FROM PHENOLS
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Aryl phosphates derived from phenols were converted into alkyl-, alkenyl-, and aryl-benzenes in high yields by cross-coupling with various kinds of Grignard and organoaluminium reagents in the presence of nickel(II) catalysts.
- Hayashi, Tamio,Katsuro, Yoshio,Okamoto, Yasuo,Kumada, Makoto
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p. 4449 - 4452
(2007/10/02)
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