GB552061A - Improvements in or relating to the preparation of organic phosphinous acids - Google Patents

Improvements in or relating to the preparation of organic phosphinous acids

Info

Publication number
GB552061A
GB552061A GB1200041A GB1200041A GB552061A GB 552061 A GB552061 A GB 552061A GB 1200041 A GB1200041 A GB 1200041A GB 1200041 A GB1200041 A GB 1200041A GB 552061 A GB552061 A GB 552061A
Authority
GB
United Kingdom
Prior art keywords
acid
phosphinous
organic
preparation
acids
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
GB1200041A
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.)
SIEGFRIED Ltd B
Original Assignee
SIEGFRIED Ltd B
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 SIEGFRIED Ltd B filed Critical SIEGFRIED Ltd B
Priority to GB1200041A priority Critical patent/GB552061A/en
Publication of GB552061A publication Critical patent/GB552061A/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
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/48Phosphonous acids [RP(OH)2] including [RHP(=O)(OH)]; Thiophosphonous acids including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof
    • C07F9/4808Phosphonous acids [RP(OH)2] including [RHP(=O)(OH)]; Thiophosphonous acids including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof the acid moiety containing a substituent or structure which is considered as characteristic
    • C07F9/4816Acyclic saturated acids or derivatices which can have further substituents on alkyl

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

552,061. Organic phosphinous acids. ABBEY, A. (Siegfried, Ltd., B.). Sept. 18, 1941, No. 12000. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 29, 1942.] [Class 2 (iii)] Organic phosphinous acids and their salts of the formula R-CH(OH)-P(OH) 2 where R is an organic radical are prepared by reaction of hypophosphorous acid with aldehydes at 50- 60‹C. in concentrated solution. Examples are given of the preparation of α-hydroxybenzylphosphinous acid, which is a strongly acting toxic, from benzaldehyde, sodium salt of metaxyl - dialpha - hydroxyphosphinous acid from isophthalic aldehyde, sodium salt of hydroxy-camphor phosphinous acid from oxymethylene camphor, hydroxy - oenanthylic - phosphinous acid from oenanthic aldehyde, the plumbate being first formed, and hydroxyisoamylic-phosphinous acid from isovalericaldehyde Snd 80-82 per cent. hypophosphorous acid in each case.
GB1200041A 1941-09-18 1941-09-18 Improvements in or relating to the preparation of organic phosphinous acids Expired GB552061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1200041A GB552061A (en) 1941-09-18 1941-09-18 Improvements in or relating to the preparation of organic phosphinous acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1200041A GB552061A (en) 1941-09-18 1941-09-18 Improvements in or relating to the preparation of organic phosphinous acids

Publications (1)

Publication Number Publication Date
GB552061A true GB552061A (en) 1943-03-22

Family

ID=9996585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1200041A Expired GB552061A (en) 1941-09-18 1941-09-18 Improvements in or relating to the preparation of organic phosphinous acids

Country Status (1)

Country Link
GB (1) GB552061A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579810A (en) * 1949-08-18 1951-12-25 Research Corp Process of preparing substituted hydroxymethylphosphonic esters
US2758971A (en) * 1952-05-20 1956-08-14 Exxon Research Engineering Co Blending agents for mineral oils
EP0544345A1 (en) * 1991-11-23 1993-06-02 Fmc Corporation (Uk) Limited Corrosion and/or scale inhibition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579810A (en) * 1949-08-18 1951-12-25 Research Corp Process of preparing substituted hydroxymethylphosphonic esters
US2758971A (en) * 1952-05-20 1956-08-14 Exxon Research Engineering Co Blending agents for mineral oils
EP0544345A1 (en) * 1991-11-23 1993-06-02 Fmc Corporation (Uk) Limited Corrosion and/or scale inhibition

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