BR7903510A - Processo para preparacao de isocianatos - Google Patents

Processo para preparacao de isocianatos

Info

Publication number
BR7903510A
BR7903510A BR7903510A BR7903510A BR7903510A BR 7903510 A BR7903510 A BR 7903510A BR 7903510 A BR7903510 A BR 7903510A BR 7903510 A BR7903510 A BR 7903510A BR 7903510 A BR7903510 A BR 7903510A
Authority
BR
Brazil
Prior art keywords
isocianates
preparation
Prior art date
Application number
BR7903510A
Other languages
English (en)
Inventor
H Zengel
E Klimesch
R Zielke
Original Assignee
Akzo Nv
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 Akzo Nv filed Critical Akzo Nv
Publication of BR7903510A publication Critical patent/BR7903510A/pt

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00Preparation of derivatives of isocyanic acid
    • C07C263/12Preparation of derivatives of isocyanic acid from or via nitrogen analogues of carboxylic acids, e.g. from hydroxamic acids, involving a Hofmann, Curtius or Lossen-type rearrangement
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/1809Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety
    • C07C273/1836Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety from derivatives of carbamic acid
    • C07C273/1845Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety from derivatives of carbamic acid comprising the -N-C(O)-Hal moiety
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/12Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14The ring being saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR7903510A 1978-06-05 1979-06-04 Processo para preparacao de isocianatos BR7903510A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2824648A DE2824648C2 (de) 1978-06-05 1978-06-05 Verfahren zur Herstellung von Isocyanaten

Publications (1)

Publication Number Publication Date
BR7903510A true BR7903510A (pt) 1980-01-22

Family

ID=6041093

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7903510A BR7903510A (pt) 1978-06-05 1979-06-04 Processo para preparacao de isocianatos

Country Status (15)

Country Link
US (1) US4238404A (pt)
JP (1) JPS54160316A (pt)
AT (1) AT360978B (pt)
AU (1) AU522044B2 (pt)
BE (1) BE876684A (pt)
BR (1) BR7903510A (pt)
CA (1) CA1123449A (pt)
DD (1) DD144051A5 (pt)
DE (1) DE2824648C2 (pt)
ES (1) ES481245A1 (pt)
FR (1) FR2428028A1 (pt)
GB (1) GB2022091B (pt)
IT (1) IT1116864B (pt)
NL (1) NL7904202A (pt)
SE (1) SE7904802L (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710595C3 (de) * 1977-03-11 1980-11-06 Akzo Gmbh, 5600 Wuppertal Verfahren zur Herstellung der Trans-Isomeren von Cyclohexan-l,4-diamin-, diurethanen, -diharnstoffen, -disulfonylharnstoffen und -diisocyanat
DE3015374A1 (de) * 1980-04-22 1981-10-29 Akzo Gmbh, 5600 Wuppertal Verfahren zur herstellung von harnstoffen
EP0123352A1 (en) * 1983-04-15 1984-10-31 Stamicarbon B.V. Aliphatic diisocyanate
US5162575A (en) * 1991-04-01 1992-11-10 Olin Corporation Preparation of isocyanates using a silver salt promoted rearrangement
US5319133A (en) * 1992-12-28 1994-06-07 Olin Corporation Isocyanates and their preparation using hypochlorous acid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1492668A (fr) * 1965-09-15 1967-08-18 Stauffer Chemical Co Procédé de production d'isocyanates organiques
US3483242A (en) * 1966-11-14 1969-12-09 Allied Chem Process for the preparation of isocyanates

Also Published As

Publication number Publication date
AU522044B2 (en) 1982-05-13
CA1123449A (en) 1982-05-11
GB2022091B (en) 1982-11-03
BE876684A (fr) 1979-09-17
IT7949140A0 (it) 1979-05-23
ATA390179A (de) 1980-07-15
DE2824648C2 (de) 1982-06-24
SE7904802L (sv) 1979-12-06
JPS54160316A (en) 1979-12-19
FR2428028A1 (fr) 1980-01-04
AU4707079A (en) 1979-12-13
NL7904202A (nl) 1979-12-07
US4238404A (en) 1980-12-09
AT360978B (de) 1981-02-10
DD144051A5 (de) 1980-09-24
IT1116864B (it) 1986-02-10
DE2824648A1 (de) 1980-01-17
GB2022091A (en) 1979-12-12
ES481245A1 (es) 1980-01-16

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Ipc: C07C 263/12 (2006.01), C07C 273/18 (2006.0