IL74603A - Preparation of 3-isocyanato-1,2,5-oxadiazoles - Google Patents

Preparation of 3-isocyanato-1,2,5-oxadiazoles

Info

Publication number
IL74603A
IL74603A IL74603A IL7460385A IL74603A IL 74603 A IL74603 A IL 74603A IL 74603 A IL74603 A IL 74603A IL 7460385 A IL7460385 A IL 7460385A IL 74603 A IL74603 A IL 74603A
Authority
IL
Israel
Prior art keywords
general formula
see diagramm
oxadiazoles
isocyanato
preparation
Prior art date
Application number
IL74603A
Other versions
IL74603A0 (en
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 IL74603A0 publication Critical patent/IL74603A0/en
Publication of IL74603A publication Critical patent/IL74603A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D273/00—Heterocyclic compounds containing rings having nitrogen and oxygen atoms as the only ring hetero atoms, not provided for by groups C07D261/00 - C07D271/00
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D271/00—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
    • C07D271/02—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms not condensed with other rings
    • C07D271/08—1,2,5-Oxadiazoles; Hydrogenated 1,2,5-oxadiazoles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

1. Process for the preparation of 3-isocyanato-1,2,5-oxadiazoles of the general formula I see diagramm : EP0156198,P7,F1 in which R represents an optionally substituted aromatic radical which does not react with phosgene under the process conditions according to the invention, characterized in that compounds of the general formula II see diagramm : EP0156198,P7,F2 in which R has the meaning given above and R**1 represents hydrogen or the groups of the general formulae III or IV see diagramm : EP0156198,P7,F3 in which R has the meaning given above and R**2 denotes an optionally substituted aliphatic or aromatic radical, are reacted with phosgene at temperatures between 150 and 220 degrees C in the presence of an organic diluent, and the resulting isocyanate of the general formula I is isolated by the customary methods and, if required, purified.
IL74603A 1984-03-17 1985-03-14 Preparation of 3-isocyanato-1,2,5-oxadiazoles IL74603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843409887 DE3409887A1 (en) 1984-03-17 1984-03-17 METHOD FOR PRODUCING ISOCYANATES

Publications (2)

Publication Number Publication Date
IL74603A0 IL74603A0 (en) 1985-06-30
IL74603A true IL74603A (en) 1989-06-30

Family

ID=6230837

Family Applications (1)

Application Number Title Priority Date Filing Date
IL74603A IL74603A (en) 1984-03-17 1985-03-14 Preparation of 3-isocyanato-1,2,5-oxadiazoles

Country Status (10)

Country Link
EP (1) EP0156198B1 (en)
JP (1) JPS60204773A (en)
KR (1) KR920003896B1 (en)
AT (1) ATE33646T1 (en)
CA (1) CA1246587A (en)
DE (2) DE3409887A1 (en)
DK (1) DK120585A (en)
HU (1) HU196975B (en)
IL (1) IL74603A (en)
ZA (1) ZA851958B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622862A1 (en) * 1986-07-08 1988-01-21 Bayer Ag SUBSTITUTED FURAZANE
DE4208873A1 (en) * 1992-03-19 1993-09-23 Bayer Ag FURAZANYL URINS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1071629A (en) * 1951-09-15 1954-09-02 France Etat Process for the preparation of isocyanates

Also Published As

Publication number Publication date
IL74603A0 (en) 1985-06-30
JPS60204773A (en) 1985-10-16
DE3562247D1 (en) 1988-05-26
EP0156198A3 (en) 1986-05-07
KR850006390A (en) 1985-10-05
DK120585A (en) 1985-09-18
JPH0481991B2 (en) 1992-12-25
HU196975B (en) 1989-02-28
ZA851958B (en) 1985-11-27
EP0156198B1 (en) 1988-04-20
KR920003896B1 (en) 1992-05-18
CA1246587A (en) 1988-12-13
ATE33646T1 (en) 1988-05-15
EP0156198A2 (en) 1985-10-02
DE3409887A1 (en) 1985-09-19
HUT36810A (en) 1985-10-28
DK120585D0 (en) 1985-03-15

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