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Class Information
Number: 558/89
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Phosphorus esters (i.e., compounds having the phosphorus ester group, wherein trivalent or pentavalent phosphorus and carbon are bonded directly to the same divalent chalcogen, and wherein the carbon may be single bonded to any atom but may be multiple bonded only to carbon) > Processes > Forming the phosphorus ester group
Description: Processes in which a phosphorus ester group is formed.

Sub-classes under this class:

Class Number Class Name Patents
558/121 Elemental phosphorus reactant 1
558/113 Reactant consists of phosphorus and oxygen (e.g., phosphorus pentoxide, etc.) 15
558/112 Reactant consists of phosphorus and sulfur (e.g., phosphorus pentasulfide, etc.) 25
558/104 Reactant has -xh, wherein x is chalcogen, bonded directly to phosphorus (wherein h of -xh may be replaced by substituted or unsubstituted ammonium, or by a group ia or iia light metal) 33
558/90 Reactant having halogen attached directly to phosphorus by nonionic bonding 32
558/117 Reactant is a phosphorus ester (e.g., transesterification, etc.) 26
558/115 Trivalent phosphorus converted into pentavalent phosphorus 19

Patents under this class:

Patent Number Title Of Patent Date Issued
8389756 Method for producing alkoxylated phosphoric acid triesters Mar. 5, 2013
8378135 Multifunctional alcohols obtained from cardanol, multifunctional acrylic crosslinker and pendant phosphorous flame retardant derivatives thereof Feb. 19, 2013
8293938 Alkylphosphonous acids, salts and esters, methods for the production thereof, and use of the same Oct. 23, 2012
8022239 Mechanism-based inactivators of autotaxin Sep. 20, 2011
7829737 Protein tyrosine phosphatase inhibitors and methods of use thereof Nov. 9, 2010
7728162 Process for preparing phosphorus compounds having phosphate-phosphonate bond Jun. 1, 2010
7557234 Process for the preparation of alkyl phosphinates Jul. 7, 2009
7534776 Process for preparing water-soluble phosphonooxymethyl derivatives of alcohol and phenol May. 19, 2009
7504389 Protein tyrosine phosphatase inhibitors and methods of use thereof Mar. 17, 2009
7312251 Synthesis of stable solutions of rare earth tris (organophosphate) in hydrocarbon solvents Dec. 25, 2007
7229978 Process for preparing water soluble phosphonooxymethyl derivatives of alcohol and phenol Jun. 12, 2007
7214811 Derivative of phosphoric acid ester salt or phosphoric acid ester adduct or mixtures thereof, method for the production thereof and their use May. 8, 2007
7135583 Process for preparation of alkenylphosphine oxides or alkenylphosphinic esters Nov. 14, 2006
7018987 Synthesis of combretastatin A-4 prodrugs and trans-isomers thereof Mar. 28, 2006
6949667 Alkenylphosphonic ester and preparation process thereof Sep. 27, 2005
6909010 Facile synthesis of symmetric esters of alkylenebisphosphonic acids Jun. 21, 2005
6815558 Process for preparing (metal) alkylphosphonites II Nov. 9, 2004
6806383 Process for preparing (metal) alkylphosphonites I Oct. 19, 2004
6790928 Process for producing polycarbonates Sep. 14, 2004
6770779 Process for preparing alkylphosphonite esters Aug. 3, 2004
6767927 Synthesis of stable solutions of rare earth tris (organophosphate) in hydrocarbon solvents Jul. 27, 2004
6566545 Menthol derivatives and process for preparing the same May. 20, 2003
6417383 Thermosensitive cyclotriphosphazene derivatives and a preparation method thereof Jul. 9, 2002
6359171 Process for preparing dialkylphosphinic acids and their salts Mar. 19, 2002
5650502 Ribozyme analogs having rigid non-nucleotidic linkers Jul. 22, 1997
5618803 Targeted drug delivery via phosphonate derivatives Apr. 8, 1997
5581006 Synthesis of 19-nor vitamin D compounds Dec. 3, 1996
5565440 Methane diphosphonic acid derivative, its production process and its pharmaceutical applications Oct. 15, 1996
5498740 Compositions comprising reaction products of phosphites, quinones and isocyanates Mar. 12, 1996
5478960 Process for the preparation of heterosubstituted acetals Dec. 26, 1995
5166385 Process for the preparation of phosphino compounds Nov. 24, 1992
5151539 Formation of tetraarylpyrophosphate Sep. 29, 1992
5041596 Formation of glycol bisphosphate compounds Aug. 20, 1991
4781722 Novel alkanephosphonic monoester salts, preparation thereof and use thereof as spin finishes for textile fibers Nov. 1, 1988
4697028 Process for producing a disulfide dimer of EPTD Sep. 29, 1987
4559184 Phosphate ester synthesis without phosphorylation catalyst Dec. 17, 1985
4544651 S-2-(Carboalkoxyvinyl) trithiophosphonate insecticides Oct. 1, 1985
4374783 O,O-Dialkyl-s-(2,3,4-trichloro)butyl thiophosphate Feb. 22, 1983
4369147 Preparation of novel S-brom-dithiophosphoric, dithiophosphonic and dithiophosphinic acid derivatives Jan. 18, 1983
4317769 Flame retardants Mar. 2, 1982
4213976 Haloalkyldithiophosphoric acid esters Jul. 22, 1980
4115482 Stereospecific cis- and trans-vinylic phosphorus esters Sep. 19, 1978
3969269 Olefine polymerization catalyst incorporating an organo-phosphorus compound Jul. 13, 1976
3969443 O(S)(NH) Trifluoromethyl-aryl phosphonates Jul. 13, 1976
3965217 Method of preparing stable condensation products and products formed by the process Jun. 22, 1976

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