Organophosphorus esters—I

Zwierzak, A.; Kluba, M.

doi:10.1016/s0040-4020(01)98109-8

Cited by 66 publications

(40 citation statements)

References 2 publications

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“…The manganese–oxo complex [Mn 4 O 4 {O 2 P(O t Bu) 2 } 6 ] ( 1 ) was prepared using a procedure analogous to that reported for [Mn 4 O 4 {O 2 PPh 2 } 6 ] 18. Two equivalents of the mixed‐valence dimanganese complex [(bpy) 2 Mn(μ 2 ‐O) 2 Mn(bpy) 2 ](ClO 4 ) 3 50 reacted in acetonitrile with NBu 4 [O 2 P(O t Bu) 2 ]51 [Eq (1)]. Since the 1 H NMR signals for ligands of both the Mn 2 O 2 precursor and the Mn 4 O 4 product are paramagnetically broadened, reaction progress was monitored by integration of the signals for diamagnetic species in solution.…”

Section: Resultsmentioning

confidence: 99%

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Oxygen‐Atom Transfer Chemistry and Thermolytic Properties of a Di‐tert‐Butylphosphate‐Ligated Mn₄O₄ Cubane

Allsburg

Anzenberg

Drisdell

et al. 2015

Chemistry A European J

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[Mn4O4{O2P(OtBu)2}6] (1), an Mn4O4 cubane complex combining the structural inspiration of the photosystem II oxygen-evolving complex with thermolytic precursor ligands, was synthesized and fully characterized. Core oxygen atoms within complex 1 are transferred upon reaction with an oxygen-atom acceptor (PEt3), to give the butterfly complex [Mn4O2{O2P(OtBu)2}6(OPEt3)2]. The cubane structure is restored by reaction of the latter complex with the O-atom donor PhIO. Complex 1 was investigated as a precursor to inorganic Mn metaphosphate/pyrophosphate materials, which were studied by X-ray absorption spectroscopy to determine the fate of the Mn4O4 unit. Under the conditions employed, thermolyses of 1 result in reduction of the manganese to Mn(II) species. Finally, the related butterfly complex [Mn4O2{O2P(pin)}6(bpy)2] (pin = pinacolate) is described.

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Section: Resultsmentioning

confidence: 99%

“…The mixed‐valence dimanganese complex [(bpy) 2 Mn(μ 2 ‐O) 2 Mn(bpy) 2 ](ClO 4 ) 3 50 and the phosphate ligands NBu 4 [O 2 P(O t Bu) 2 ]51 and NBu 4 [O 2 P(pin)]68 were synthesized as described previously.…”

Section: Methodsmentioning

confidence: 99%

Oxygen‐Atom Transfer Chemistry and Thermolytic Properties of a Di‐tert‐Butylphosphate‐Ligated Mn₄O₄ Cubane

Allsburg

Anzenberg

Drisdell

et al. 2015

Chemistry A European J

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“…They were transported to the laboratory in ice, and the two hemispheres were chopped into small pieces before being frozen in liquid N2. The The synthesis of isopropyl phosphate, which was obtained as an anilinium salt, was performed as described by Zwierzak & Kluba (1971).…”

Section: Materials and Methods Enzyme Sourcementioning

confidence: 99%

Purification and properties of myo-inositol-1-phosphatase from bovine brain

Attwood¹,

Ducep²,

Chanal³

1988

Biochemical Journal

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myo-Inositol-1-phosphatase from bovine brain was purified over 2000-fold. The native enzyme has a Mr of 59,000, and on SDS/polyacrylamide-gel electrophoresis the subunit Mr was 31,000. Thus the native enzyme is a dimer of two apparently identical subunits. The enzyme, purified to a specific activity of more than 300 units/mg of protein (1 unit of enzyme activity corresponds to the release of 1 mumol of Pi/h at 37 degrees C), catalysed the hydrolysis of a variety of phosphorylated compounds, the best one, in terms of V/Km, being D-myo-inositol 1-phosphate. Kinetic constants of compounds tested, including both isomers of glycerophosphate and two deoxy forms of beta-glycerophosphate, were measured. They show the importance of the two hydroxyl groups which are adjacent to the phosphate in myo-inositol 1-phosphate. With a wide variety of substrates Li+ was found to be an uncompetitive inhibitor whose Ki varied with substrate structure.

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“…Fine-Chem), diphenyl phosphate (Lancaster), diphenylphosphinic acid (Lancaster), phenylphosphinic acid (Lancaster), and NaClO 4 (Aldrich) were used as received. [Zn(OAc)(bpy) 2 ]ClO 4 ·H 2 O [27] and (tBuO) 2 PO 2 H [28] were synthesized as described previously in the literature.…”

Section: Solvents and Starting Materialsmentioning

confidence: 99%

Structural Diversity in Zinc Phosphates and Phosphinates: Observation of a Lattice Water Dimer Sandwiched Between Phosphoryl Oxygen Atoms

et al. 2008

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O) (4) have been obtained from similar reactions by the use of diphenylphosphinic acid (dppi-H) and phenylphosphinic acid (ppi-H), respectively. The high steric bulk of the dtbp ligand results in the formation of the cationic complex 1, where only one of the dtbp ligands is directly coordinated to the metal atom, leaving the second dtbp molecule as the counter anion. The inorganic core of dinuclear zinc phosphate 2 resembles the single four-ring (S4R) secondary build-

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Organophosphorus esters—I

Cited by 66 publications

References 2 publications

Oxygen‐Atom Transfer Chemistry and Thermolytic Properties of a Di‐tert‐Butylphosphate‐Ligated Mn₄O₄ Cubane

Oxygen‐Atom Transfer Chemistry and Thermolytic Properties of a Di‐tert‐Butylphosphate‐Ligated Mn₄O₄ Cubane

Purification and properties of myo-inositol-1-phosphatase from bovine brain

Structural Diversity in Zinc Phosphates and Phosphinates: Observation of a Lattice Water Dimer Sandwiched Between Phosphoryl Oxygen Atoms

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Organophosphorus esters—I

Cited by 66 publications

References 2 publications

Oxygen‐Atom Transfer Chemistry and Thermolytic Properties of a Di‐tert‐Butylphosphate‐Ligated Mn4O4 Cubane

Oxygen‐Atom Transfer Chemistry and Thermolytic Properties of a Di‐tert‐Butylphosphate‐Ligated Mn4O4 Cubane

Purification and properties of myo-inositol-1-phosphatase from bovine brain

Structural Diversity in Zinc Phosphates and Phosphinates: Observation of a Lattice Water Dimer Sandwiched Between Phosphoryl Oxygen Atoms

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Oxygen‐Atom Transfer Chemistry and Thermolytic Properties of a Di‐tert‐Butylphosphate‐Ligated Mn₄O₄ Cubane

Oxygen‐Atom Transfer Chemistry and Thermolytic Properties of a Di‐tert‐Butylphosphate‐Ligated Mn₄O₄ Cubane