METHOD FOR ALKYLATING ELEMENTAL PHOSPHOR

The invention relates to a process for preparing alkali metal salts and/or alkaline earth metal salts of alkylphosphonous acids and dialkylphosphinic acids from elemental yellow phosphorus and alkyl halides, which comprises carrying out the reaction in the presence of aqueous alkali metal hydroxide...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WEFERLING, NORBERT, STELZER, OTHMAR, KOLBE, GUENTER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ADHESIVES AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY DYES FISHING FORESTRY HUMAN NECESSITIES HUNTING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS POLISHES PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TRAPPING
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Beschreibung
Zusammenfassung:	The invention relates to a process for preparing alkali metal salts and/or alkaline earth metal salts of alkylphosphonous acids and dialkylphosphinic acids from elemental yellow phosphorus and alkyl halides, which comprises carrying out the reaction in the presence of aqueous alkali metal hydroxide or alkaline earth metal hydroxide or mixtures thereof. The invention likewise relates to the use of the compounds prepared by the process according to the invention for preparing flame retardants, extraction media and plant protection agents.