GB711621A - Process of making tetraalkyl dithiopyrophosphates - Google Patents

Process of making tetraalkyl dithiopyrophosphates

Info

Publication number
GB711621A
GB711621A GB22853/51A GB2285351A GB711621A GB 711621 A GB711621 A GB 711621A GB 22853/51 A GB22853/51 A GB 22853/51A GB 2285351 A GB2285351 A GB 2285351A GB 711621 A GB711621 A GB 711621A
Authority
GB
United Kingdom
Prior art keywords
dithiopyrophosphates
pyridine
water
tetraalkyl
making
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB22853/51A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB711621A publication Critical patent/GB711621A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/06Phosphorus compounds without P—C bonds
    • C07F9/16Esters of thiophosphoric acids or thiophosphorous acids
    • C07F9/165Esters of thiophosphoric acids
    • C07F9/1658Esters of thiopolyphosphoric acids or anhydrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)

Abstract

A process of making tetraalkyl dithiopyrophosphates comprises heating an o,o-dialkyl chlorothiophosphate with an alkali metal carbonate as acid binding agent with the addition of water in the presence of pyridine as a catalyst. The use of elevated tempera-, tures is preferred. In examples, tetramethyl, tetraethyl- and tetrapropyl dithiopyrophosphates are prepared by heating o,o-dimethyl-o,o-diethyl- and o,o-dibutyl chlorothiophosphates respectively with water and potassium carbonate in the presence of pyridine.
GB22853/51A 1950-10-03 1951-10-01 Process of making tetraalkyl dithiopyrophosphates Expired GB711621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE711621X 1950-10-03

Publications (1)

Publication Number Publication Date
GB711621A true GB711621A (en) 1954-07-07

Family

ID=6620874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22853/51A Expired GB711621A (en) 1950-10-03 1951-10-01 Process of making tetraalkyl dithiopyrophosphates

Country Status (1)

Country Link
GB (1) GB711621A (en)

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