GB1265130A - - Google Patents

Info

Publication number
GB1265130A
GB1265130A GB1265130DA GB1265130A GB 1265130 A GB1265130 A GB 1265130A GB 1265130D A GB1265130D A GB 1265130DA GB 1265130 A GB1265130 A GB 1265130A
Authority
GB
United Kingdom
Prior art keywords
formamide
nov
phosphorus trihalide
phosphorus
diphosphonic acid
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
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 filed Critical
Publication of GB1265130A publication Critical patent/GB1265130A/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
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3839Polyphosphonic acids
    • C07F9/3873Polyphosphonic acids containing nitrogen substituent, e.g. N.....H or N-hydrocarbon group which can be substituted by halogen or nitro(so), N.....O, N.....S, N.....C(=X)- (X =O, S), N.....N, N...C(=X)...N (X =O, S)

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

1,265,130. Aminomethane diphosphonic acid. HENKEL & CIE G.m.b.H. 18 Nov., 1970 [19 Nov., 1969], No. 54742/70. Heading C2P. [Also in Division C1] Aminomethane diphosphonic acid and its salts are prepared by reacting a phosphorus trihalide with formamide and hydrolysing the product, and optionally forming a salt. The phosphorus trihalide is preferably phosphorus trichloride, and the molar ratio of phosphorus trihalide to formamide is preferably from 1 : 4 to 4 : 1. The reaction mixture may also contain phosphorous acid or water. The reaction is preferably carried out at 0-75‹ C.
GB1265130D 1969-11-19 1970-11-18 Expired GB1265130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691958124 DE1958124C3 (en) 1969-11-19 1969-11-19 Process for the preparation of aminomethanediphosphonic acid or its salts

Publications (1)

Publication Number Publication Date
GB1265130A true GB1265130A (en) 1972-03-01

Family

ID=5751539

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265130D Expired GB1265130A (en) 1969-11-19 1970-11-18

Country Status (9)

Country Link
JP (1) JPS4914734B1 (en)
BE (1) BE759100A (en)
CH (1) CH539657A (en)
DE (1) DE1958124C3 (en)
ES (1) ES385659A1 (en)
FR (1) FR2069657A5 (en)
GB (1) GB1265130A (en)
NL (1) NL165173C (en)
SE (1) SE368018B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846835A1 (en) * 1978-10-27 1980-05-08 Benckiser Knapsack Gmbh METHOD FOR PRODUCING CARBOXYLALKANE-AMINOALKANE DIPHOSPHONIC ACIDS AND AMINOARYLALKANE DIPHOSPHONIC ACIDS

Also Published As

Publication number Publication date
NL165173C (en) 1981-03-16
FR2069657A5 (en) 1971-09-03
DE1958124B2 (en) 1977-12-08
DE1958124C3 (en) 1978-08-17
JPS4914734B1 (en) 1974-04-10
CH539657A (en) 1973-07-31
NL165173B (en) 1980-10-15
BE759100A (en) 1971-05-18
SE368018B (en) 1974-06-17
DE1958124A1 (en) 1971-05-19
ES385659A1 (en) 1973-03-16
NL7015157A (en) 1971-05-24

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee