Abstract: Provided is a method of preparing a biphenyl-4-yl diphenyl phosphate composition for use as a flame retardant or a plasticizer for resin, including mixing phosphoryl chloride (POCl3), 4-phenylphenol, and a catalyst, so that first dehydrochlorination occurs; and further adding phenol, so that second dehydrochlorination occurs.

Abstract: The invention provides synthetic processes and synthetic intermediates that can be used to prepare compounds having useful anti-HIV properties.

Abstract: The present invention provides a novel phosphoric compound, a method for preparing the same, and a thermoplastic resin composition including the same. A thermoplastic resin composition comprising the phosphoric compound of the present invention can have excellent flame retardancy, and can be eco-friendly because the phosphoric compound does not generate toxic gas during molding or combustion.

Abstract: Disclosed herein is a sterically hindered phenolic phosphonate resin compound represented by the following Chemical Formula 1. The present invention also provides a polycarbonate resin composition including the sterically hindered phenolic phosphonate resin compound as a flame retardant. wherein R1 is a C1-C6 alkyl group or a C6-C14 aryl group; each R2 is independently a C1-C6 linear alkyl group or a C3-C6 branched alkyl group; and each n is independently 1-3.

Abstract: Disclosed herein is a sterically hindered phenolic phosphonate resin compound represented by the following Chemical Formula 1. The present invention also provides a polycarbonate resin composition including the sterically hindered phenolic phosphonate resin compound as a flame retardant. wherein R1 is a C1-C6 alkyl group or a C6-C14 aryl group; each R2 is independently a C1-C6 linear alkyl group or a C3-C6 branched alkyl group; and each n is independently 1-3.

Abstract: The present invention discloses an active-hydrogen-containing phosphorus compound for cross-linking a resin and for imparting flame-retardancy to the cured resin, and in particular to a cured frame-retardant epoxy resin prepared by reacting the hardener with a di- or poly-functional epoxy resin via an addition reaction between the active hydrogen and the epoxide group. The present invention also discloses an epoxy resin made from the active-hydrogen-containing phosphorus compound and epihalohydrin.

Abstract: Perfluoroalkyl and perfluoroalkylether substituted aromatic phosphates, phosphonates and related compositions prepared by reaction of pefluoroalkyl or pefluoroakylether substituted phenols with mono- and dihalophosphite and primary and secondary phosphonyl halides are disclosed. These materials are useful as antioxidant, anticorrosion, antirust, and lubricity enhancing agents for perfluoropolyalkylether fluids.

Abstract: The present invention discloses pesticidally active compounds of formula (II) ##STR1## or a salt thereof, wherein Q is an monocyclic aromatic ring, or fused bicyclic ring system of which at least one ring is aromatic containing 9 or 10 atoms of which one may be nitrogen and the rest carbon each ring system being optionally substituted, or Q is a dihalovinyl group or a group R.sup.6 --C.tbd.C-- where R.sup.6 is C.sub.1-4 alkyl, tri C.sub.1-4 alkylsilyl, halogen or hydrogen; R.sup.2, R.sup.3 , R.sup.4 and R.sup.5 are the same or different with at least one being hydrogen and the others being independently selected from hydrogen, halo, C.sub.1-4 alkyl or C.sub.1-4 haloalkyl; and R.sup.1 is selected from hydrogen and C.sub.1-8 hydrocarbyl optionally substituted by dioxalanyl, halo, cyano, trifluoromethyl, trifluoromethylthio or C.sub.1-6 alkoxy and X.sup.1 is hydrogen, fluoro or chloro.

Abstract: A process for the preparation of vinyl phosphonic derivatives of the general formula I ##STR1## in which R.sup.1 and R.sup.2 are the same or different and may stand for hydrogen or a C.sub.1 -C.sub.8 -alkyl, a C.sub.6 -C.sub.10 -aryl, or a C.sub.8 -C.sub.10 -aralkyl radical optionally substituted by Cl or Br, and in which R.sup.1 and R.sup.2 may alternatively be joined together to form an alicyclic ring having from 3 to 12 carbon atoms in the ring, wherein an ethane phosphonic ester of the general formula II ##STR2## in which R.sup.3 and R.sup.4 have the meanings stated above for R.sup.1 and R.sup.2 except for hydrogen and X denotes a hydroxy group, a halogen atom, or a radical of the formula--OR.sup.5,in which R.sup.5 is a hydrogen atom or a radical of the formula ##STR3## in which R.sup.6 is a C.sub.1 -C.sub.6 -alkyl radical or an alicyclic ring, is converted in the gas phase in the presence of a solid catalyst.

Abstract: The invention is novel compounds of the formula: ##STR1## which are antagonists of platelet activating factor.

Abstract: Certain phenyl and N-heterocyclic phosphorothioates and phosphonothioates and phosphates are prepared by the reaction of an appropriate alkali metal or alkaline earth metal --0-phenyl or N-heterocyclic compound with an appropriate phosphorochloridate, phosphorochloridothioate, phosphonochloridate or phosphonochloridothioate under alkaline conditions in the presence of a tertiary amine catalyst and a nonionic surfactant having an HLB Value of from about 1 to about 20, preferably about 5 to 15, in a two-phase system, one phase being primarily the phosphorate or phosphonate reactant and a complex thereof with the tertiary amine catalyst and the other phase being an aqueous reaction medium comprising water, a buffer system, and the alkali metal or alkaline earth metal-O-phenyl or --O-N-heterocyclic compound, in the substantial or complete absence of an organic solvent the aqueous reaction medium being maintained at pH about 10 to 12 by the buffer system.

Abstract: Certain phenyl and N-heterocyclic phosphorothioates and phosphates are prepared by the reaction of an appropriate alkali metal or alkaline earth metal -O-phenyl or N-heterocyclic compound with an appropriate phosphorochloridate or phosphorochloridothioate under alkaline conditions in a liquid reaction medium and in the presence of a tertiary amine catalyst and a nonionic surfactant having a HLB Value of from about 2.5 to about 20 or more.

Abstract: Allyl phosphonate diesters are converted to vinyl phosphonate diesters by isomerization with a catalytically effective amount of one or more metal hydroxide catalysts.