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GB877840A - Phenyl cyanates and a process for their production - Google Patents

Phenyl cyanates and a process for their production

Info

Publication number
GB877840A
GB877840A GB40246/59A GB4024659A GB877840A GB 877840 A GB877840 A GB 877840A GB 40246/59 A GB40246/59 A GB 40246/59A GB 4024659 A GB4024659 A GB 4024659A GB 877840 A GB877840 A GB 877840A
Authority
GB
United Kingdom
Prior art keywords
butyl
tert
cyanate
tertiary
phenyl
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
GB40246/59A
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 GB877840A publication Critical patent/GB877840A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/0622Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
    • C08G73/0638Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with at least three nitrogen atoms in the ring
    • C08G73/065Preparatory processes
    • C08G73/0655Preparatory processes from polycyanurates
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C261/00Derivatives of cyanic acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

The invention comprises compounds of the general formula <FORM:0877840/IV (b)/1> in which R1 is a tertiary butyl or tertiary amyl group, R2, which may be the same as R1, is an isopropyl, tertiary butyl, tertiary amyl or cyclohexyl group and in which the benzene ring may be further substituted by one or more alkyl or alkenyl groups containing up to 6 carbon atoms, cyano groups, aralkyl groups and/or halogen atoms. The cyanates may be prepared by reacting a salt of the corresponding phenol with at least the theoretical amount of a cyanogen halide in the presence of an inert organic solvent. Examples describe the preparation of 2,6-di-tert. butyl phenyl cyanate, 2,6-di-tert. butyl-3-vinyl-, 4-cyano-, 4-methyl, 4-tert. butyl and 4-chloro-phenyl cyanate, 2 - iso - propyl - 6 - tert. butyl phenyl cyanate and 3,5,31,51-tetra-tert. butyl-diphenylmethane-4,41-dicyanate. 2,6 - di - tert. butyl phenyl carbamate is obtained from the cyanate by hydrolysis and converted to the N-dimethyl compound.
GB40246/59A 1958-11-28 1959-11-26 Phenyl cyanates and a process for their production Expired GB877840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE877840X 1958-11-28

Publications (1)

Publication Number Publication Date
GB877840A true GB877840A (en) 1961-09-20

Family

ID=6818257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40246/59A Expired GB877840A (en) 1958-11-28 1959-11-26 Phenyl cyanates and a process for their production

Country Status (1)

Country Link
GB (1) GB877840A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981994A (en) * 1989-07-31 1991-01-01 Shell Oil Company Preparation of cyanate esters
US5089660A (en) * 1988-01-22 1992-02-18 The Dow Chemical Company Aromatic polycyanate/monocyanate comonomer compositions and polytriazines derived therefrom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5089660A (en) * 1988-01-22 1992-02-18 The Dow Chemical Company Aromatic polycyanate/monocyanate comonomer compositions and polytriazines derived therefrom
US4981994A (en) * 1989-07-31 1991-01-01 Shell Oil Company Preparation of cyanate esters

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