Über Halogenphenylester der Phosphorsäure

Ismail, Roshd M.

doi:10.1002/zaac.19703720217

Cited by 6 publications

(1 citation statement)

References 8 publications

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“…According to literature data, we might have expected a catalytic effect from the N-methylpyrrolidine. [33] An attempt to use a catalytic amount of this amine (0.2 equiv.) did not, however, produce any extractable compounds.…”

Section: Synthesis Of Host Molecules 2 Andmentioning

confidence: 99%

Synthesis and Binding Properties of iiii (4i) Stereoisomers of Phosphonato Cavitands − Cooperative Effects in Cation Complexation in Organic Solvents

et al. 2001

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Syntheses and host-guest properties of tetrabridged phosphorylated cavitands in their iiii (4i) configurations are described. The tetraphosphonato cavitands 2 and 3, with the four P=O bonds oriented inwards (4i stereoisomer) were prepared in 25% and 53% yields respectively, from the corresponding resorc[4]arenes, dichloro(phenyl)phosphane oxide and base. The formation of the 4i stereoisomers is solventdependent and is attributable to the capability of an ammonium guest to form an inclusion complex. Only the iiio (3io) stereoisomer of 3 was isolated otherwise, in low yield. These phosphonato cavitands, in their 4i configurations, are particularly efficient extractants for metal ions. The free energies of complexation of 3 with alkali metal and ammonium cations

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Section: Synthesis Of Host Molecules 2 Andmentioning

confidence: 99%

Synthesis and Binding Properties of iiii (4i) Stereoisomers of Phosphonato Cavitands − Cooperative Effects in Cation Complexation in Organic Solvents

et al. 2001

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Synthesis and testing of nonhalogenated alkyne/phosphorus-containing polymer additives: Potent condensed-phase flame retardants

Morgan

Tour

1999

J. Appl. Polym. Sci.

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ABSTRACT:In this article, the syntheses and thermal properties of several alkyne-and phosphorus-containing materials are discussed. The materials were synthesized using substituted phenolic molecules which were added to phosphorus oxychloride. The materials synthesized include phosphine oxides, phosphates, diphosphates, and oligophosphates. The thermal properties of the synthesized materials were studied using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). In general, the DSC and TGA data showed that synthesized materials containing alkynes and phosphorus had good-to-excellent thermal stability with high-onset decomposition temperatures. Materials with a high alkyne-to-phosphorus ratio showed the highest char yields. DSC data showed crosslinking events for the alkynes and the phosphorus moieties. DSC also showed that the alkynes crosslinked at lower temperatures than the phosphates. Based on the TGA and DSC data of the alkyne-containing phosphorus materials, alkynes generally appeared to be better char-inducing groups than was phosphorus. The materials were blended into polycarbonate and tested for ignition resistance using the UL-94 flame test. In two cases, these halogen-free compounds, with their dual alkyne/phosphorous crosslinking mechanisms, are condensed-phase flame retardants that can be easily blended into polycarbonate at 10 wt % loadings to afford blends that give a UL-94 V-0 rating.

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ChemInform Abstract: HALOGENPHENYLESTER DER PHOSPHORSAEURE

Ismail¹

1970

Chemischer Informationsdienst. Organische Chemie

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Über Halogenphenylester der Phosphorsäure

Cited by 6 publications

References 8 publications

Synthesis and Binding Properties of iiii (4i) Stereoisomers of Phosphonato Cavitands − Cooperative Effects in Cation Complexation in Organic Solvents

Synthesis and Binding Properties of iiii (4i) Stereoisomers of Phosphonato Cavitands − Cooperative Effects in Cation Complexation in Organic Solvents

Synthesis and testing of nonhalogenated alkyne/phosphorus-containing polymer additives: Potent condensed-phase flame retardants

ChemInform Abstract: HALOGENPHENYLESTER DER PHOSPHORSAEURE

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