Substituting Carbon For Halogen, Hydrogen, Or Metal Bonded Directly To The Phosphorus Patents (Class 558/134)
  • Patent number: 11266950
    Abstract: Methods and compositions are described that remove chlorine from a chlorine-containing gas stream. The method includes adding a carbonate salt and optionally a scale inhibitor to a scrubbing liquid in a wet scrubbing system, and contacting the chlorine-containing gas with the scrubbing liquid. The amount of carbonate salt that is added can vary depending on the pH of the scrubbing liquid.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 8, 2022
    Assignee: CHEMTREAT, INC.
    Inventors: William Brown, Douglas Godwin, Travis Scoper
  • Patent number: 8278375
    Abstract: Mixtures of three types of linear, branched or cyclic phosphates are useful flame retardants, especially for thermoplastic resins or as functional additives in polymer matrices.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: October 2, 2012
    Assignee: Rhodia UK Limited
    Inventors: Vincent Schanen, Dwight Shamblee, Gleb Priimov, Julie Ann Salter
  • Patent number: 7399876
    Abstract: Process for preparing an alkenylphosphonic acid derivative by reacting a phosphonic acid derivative with an alkyne in the presence of a catalyst complex system, wherein the catalyst complex system comprises (a) nickel, (b) a phosphine having at least two trivalent phosphorus atoms and in addition (c) a phosphine having one trivalent phosphorus atom.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: July 15, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Roland Kessinger, Jan-Dirk Arndt, Jochem Henkelmann, Florian Thomas
  • Patent number: 6720442
    Abstract: This invention relates to processes for making phosphorus compounds R2P—X—PR2, R2P-M, R2P-L and R3P, and the novel cation R2P+(L)-X—P+(L)R2, where R represents an optionally substituted hydrocarbyl group, X represents a bridging group, L represents a leaving group and M represents an alkali metal atom. The invention relates further to a process for making a compound R2P-L from a compound R—H via a new process for making the compound R—Li followed by its reaction with a compound Hal2P-L. The compound R2P—X—PR2 is a ligand suitable for making catalysts for copolymerizing carbon monoxide and a olefinically unsaturated compound.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: April 13, 2004
    Assignee: SRI International
    Inventors: Roelof Van Ginkel, Alexander Van Der Made, Jan De With, Wolf Eilenberg
  • Patent number: 5990337
    Abstract: The invention relates to a process for the preparation of phosphorus-containing compounds of the formula (I) ##STR1## where R.sup.1 and R.sup.2 are identical or different and are a straight-chain or branched alkyl radical having 1 to 8 carbon atoms, a cyclohexyl-, cyclopentyl-, aryl-, halogen-, (C.sub.1 -C.sub.6)-alkyl- or (C.sub.1 -C.sub.6)-alkoxy-substituted aryl radical, where R.sup.1 and R.sup.2, together with the phosphorus atom and the oxygen atom, can also form a ring, in particular an oxaphosphorin ring, which comprises metering acrylonitrile at elevated temperature into a compound of the formula (II) ##STR2## where R.sup.1 and R.sup.2 are as defined above.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: November 23, 1999
    Assignee: Ticona GmbH
    Inventor: Hanss-Jerg Kleiner
  • Patent number: 5847184
    Abstract: The present invention relates to a process for preparing of phosphorus-containing dicarboxylic acids of the formula (I) ##STR1## where R.sup.1 and R.sup.2 are identical or different and are each a straight-chain or branched alkyl radical having from 1 to 8 carbon atoms, a cycloaliphatic radical having 5 or 6 carbon atoms in the ring, an unsubstituted or substituted aryl radical having from 6 to 10 carbon atoms, or R.sup.1 and R.sup.2 form, with inclusion of the phosphorus atom, a ring having from 5 to 8 members, and m and n are each, independently of one another 0 or 1, by reacting a compound of the formula (II) ##STR2## where R.sup.1, R.sup.2 and m are as defined above, with fumaric acid, maleic acid or itaconic acid in the presence of a saturated aliphatic monocarboxylic acid having a total of from 1 to 5 carbon atoms as solvent at from to C. under atmospheric pressure or superatmospheric pressure.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: December 8, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Hans-Jerg Kleiner
  • Patent number: 5504236
    Abstract: The preparation of .alpha.-carbonylphosphine oxides by oxidizing an .alpha.-hydroxyalkyl phosphine oxide with an organic hydroperoxide or of an organic peroxy acid in the presence of a compound of a Group IV to Group VIII metal in the periodic table, and novel .alpha.-hydroxybenzyl phosphine oxides..alpha.-Carbonylphosphine oxides are used as photoinitiators for polymerizable compositions.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: April 2, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Fischer, Eckhard Hickmann, Rudolf Kropp, Jochen Schroeder, Beate Trentmann
  • Patent number: 5356967
    Abstract: A dibenzo-[c,e] [1,2] oxaphosphorine of the formula I and process of making said compound ##STR1## wherein n=1 or 2 and in which R.sup.1 is a monovalent or divalent aromatic radical wherein a Grignard compound R.sup.1 (MgHal).sub.n is reacted with 6-chloro-6H-dibenzo[c,e][1,2] oxaphosphorine.This compound optionally with phenolic antioxidants, provides stabilization in polymers.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: October 18, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Bohshar, Hans-Jerg Kleiner, Gerhard Pfahler
  • Patent number: 5298541
    Abstract: A process for the preparation of aryl phosphonites of the formula V ##STR1## wherein the radicals and n are defined in the disclosure. The invention further relates to a plastic molding composition, in particular a polyolefin molding composition containing aryl phosphonites of the formula V.
    Type: Grant
    Filed: February 20, 1992
    Date of Patent: March 29, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Bohshar, Hans-Jerg Kleiner, Gerhard Pfahler
  • Patent number: 5281640
    Abstract: Diarylphosphinous acid aryl esters are made by the disclosed process. These compounds are useful for stabilizing plastics, in particular polymerization plastics, and hence can be incorporated into a plastic molding composition.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: January 25, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Dieter Regnat, Manfred Bohshar, Hans-Jerg Kleiner, Gerhard Pfahler
  • Patent number: 5210262
    Abstract: A method is provided for preparing a phosphonic acid ester having the structure ##STR1## wherein R.sup.1 is farnesyl or a derivative or analog thereof, and R.sup.2 is lower alkyl, by treating a farnesyl halide R.sup.1 Hal(Hal=Cl,Br,I) with an alkoxide of the structure ##STR2## wherein M is an alkali metal and R.sup.2c is lower alkyl. The resulting phosphonic acid ester is an intermediate in preparing a squalene synthetase inhibitor which is used for inhibiting cholesterol biosynthesis.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: May 11, 1993
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Janak Singh, Richard H. Mueller
  • Patent number: 5187292
    Abstract: The invention relates to an N-sulfomethylglycinate of formula:HO.sub.3 S--CH.sub.2 --NH--CH.sub.2 --COOR.sub.1 (I)COOR.sub.1 being a hydrolysable carboxylic ester group.It also relates to a process for the preparation of the compound of formula (I) consisting in putting in contact sulfur dioxide, formaldehyde, and glycine in the presence of a R.sub.1 OH alcohol, or glycinate.It also relates to the use of the compound of formula (I) for the preparation of herbicides of the glyphosate type of reaction with a phosphite or a phosphonate of formula (R.sub.2 O).sub.2 P (O) H in which (R.sub.2 O).sub.2 P is a hydrolysable phosphonic ester group, then optionally by a subsequent hydrolysis reaction.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: February 16, 1993
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Bernard Botannet, Jean-Louis Clavel, Jean-Pierre Corbet, Michel Mulhauser
  • Patent number: 5128495
    Abstract: The said compounds are prepared by reaction of trialkyl phosphites with phosphorus trichloride and/or dichlorophosphinous acid monoalkyl esters at -20 to C. and direct subsequent reaction with alkylmagnesium chloride or alkylmagnesium bromide at -60 to C. and subsequent separation of the desired compounds from the distillate of the volatile compounds. Dialkyl alkylphosphonites and monoalkyl dialkylphosphinites are thus obtained without troublesome and expensive purification of intermediates. The phosphorus-containing esters produced are, for their part, useful intermediates, for example for the preparation of flame retardants and plant protection agents.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: July 7, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunter Scheffel, Michael Thiele
  • Patent number: 5109043
    Abstract: A process for the preparation of organophosphorus derivatives of 2,4-di-tert-butylphenol with a high proportion of organophosphorus derivatives of biphenyl, which comprises reacting, in a first step, a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35, under Grignard conditions with magnesium to form the corresponding Grignard compound and this is further reacted in a second step with bis(2,4-di-tert-butylphenyl) chlorophosphite with the formation of a mixture in which at least 50% by weight of the phosphorus is combined in the form of tetrakis(2,4-di-tert-butylphenyl) 4,4'-biphenylenediphosphonite. The invention further relates to a polyolefin molding composition containing tetrakis(2,4-di-tert-butylphenyl) 4,4'-biphenylenediphosphonite which was prepared by reaction of a 4,4'-dihalobiphenyl whose halogen has an atomic weight of at least 35 with magnesium to form the Grignard compound and by subsequent reaction with bis(2,4-di-tert-butylphenyl) chlorophosphite.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: April 28, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Bohshar, Hans-Jerg Kleiner, Karl Waldmann, Gerhard Pfahler
  • Patent number: 4983750
    Abstract: Phosphobetaines of the general formula ##STR1## are disclosed in which R.sup.1 is an alkyl group with 1 to 20 carbon atoms, optionally substituted with OH groups, or the ##STR2## group, in which R.sup.6 is a divalent alkylene group with 1 to 10 carbon atoms, optionally substituted with OH group,R.sup.2 is a divalent hydrocarbon group with 2 to 10 carbon atoms, the chain of which may be interrupted by one or more nitrogen atoms,R.sup.1, R.sup.5 are the same or different and represent alkyl or benzyl groups andR.sup.4 is an alkyl group with 1 to 4 carbon atoms.Also disclosed is the synthesis of these compounds and their use as surface active substances, preferably for the treatment of polar surfaces in the industrial area.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: January 8, 1991
    Assignee: Th. Goldschmidt AG
    Inventors: Joachim Giersberg, Hans-Joachim Kollmeier
  • Patent number: 4871721
    Abstract: Compounds which are useful as inhibitors of cholesterol biosynthesis and thus as hypocholesterolemic agents are provided which have the structure ##STR1## Z is --(CH.sub.2).sub.n -- or --(CH.sub.2).sub.p --CH.dbd.CH--(CH.sub.2).sub.m --, wherein n is 1 to 5; p is 0, 1 or 2; m is 0, 1 or 2;R, R.sup.1 and R.sup.1a are the same or different and are H, lower alkyl or a metal ion; andR.sup.2 and R.sup.3 may be the same or different and are H or halogen.New intermediates used in preparing the above compounds and method for preparing same, pharmaceutical compositions containing such compounds and a method for using such compounds to inhibit cholesterol biosynthesis are also provided.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: October 3, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Scott A. Biller
  • Patent number: 4755614
    Abstract: Preparation of intermediates for herbicides of formula ##STR1## by the reaction of organic phosphites with benzoxazines of formulaBzx--CH.sub.2 --CO--Y (II)in whichBzx denotes the radical of formula: ##STR2## X is a usual substituent of phenols n is an integer from 0 to 4R.sup.1 and R.sup.2 are H or such that OR.sup.1 and OR.sup.2 are hydrolyzableY is --OM or --NR.sup.3 R.sup.4M is H or is such that COOM is a salt or an esterR.sup.3 and R.sup.4 are H or a hydrocarbon radical, and one of them can be R.sup.5 --SO.sub.2 --, andR.sup.5 is a hydrocarbon radical, substiuted if appropriate. Products obtained by the process and their use as herbicides.
    Type: Grant
    Filed: March 20, 1986
    Date of Patent: July 5, 1988
    Assignee: Rhone-Poulenc Agrochimie
    Inventor: Jean-Pierre Corbet
  • Patent number: 4751321
    Abstract: Phosphinites or phosphonites are produced by reacting potassium or sodium aryls with compounds of formula ROPClX in which X is an R'O, Cl or aryl group, R and R' being alkyl or cycloalkyl groups at a temperature of at most C.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: June 14, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: Jonathan Mann, Gordon Shaw
  • Patent number: 4744912
    Abstract: Reaction products of sulfurized olefins, e.g., isobutylene with a dialkyl hydrogen phosphite and an alkyl primary amine provide antiwear characteristics and improved retention of copper corrosion protection for lubricant compositions when incorporated therein.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: May 17, 1988
    Assignee: Mobil Oil Corporation
    Inventor: Angeline B. Cardis
  • Patent number: 4618693
    Abstract: A cyclic organic phosphorus compound useful as a stabilizer and a fire retardant for organic substances, particularly, high molecular weight compounds is provided, which compound is expressed by the formula (I): ##STR1## and further a process for producing the above compound (I) is provided, which process comprises reacting a compound expressed by the formula (II): ##STR2## with 1,4-benzoquinone.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: October 21, 1986
    Assignee: Sanko Kaihatsu Kagaku Kenkyusho
    Inventors: Toranosuke Saito, Masakatu Kitani, Hiroyuki Ohishi