GB1273180A - Production of aromatic isocyanates bearing sulfohalide groups - Google Patents

Production of aromatic isocyanates bearing sulfohalide groups

Info

Publication number
GB1273180A
GB1273180A GB44824/69A GB4482469A GB1273180A GB 1273180 A GB1273180 A GB 1273180A GB 44824/69 A GB44824/69 A GB 44824/69A GB 4482469 A GB4482469 A GB 4482469A GB 1273180 A GB1273180 A GB 1273180A
Authority
GB
United Kingdom
Prior art keywords
aromatic isocyanates
bearing
sept
aromatic
production
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
GB44824/69A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1273180A publication Critical patent/GB1273180A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Landscapes

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

Abstract

1,273,180. Halosulphonyl aromatic isocyanates. BADISCHE ANILIN- & SODA-FABRIK A.G. 11 Sept., 1969 [12 Sept., 1968], No. 44824/69. Heading C2C. Aromatic isocyanates bearing sulphohalide groups are obtained by reacting an aromatic aminosulphonic acid with phosgene in the presence of an inert organic solvent at elevated temperature and in the presence of an acyclic or cyclic carboxylic amide bearing two substituents on the nitrogen atom. Suitably the end products have the formula in which X is a chlorine or bromine atom, R is an aryl radical substituted by alkyl C 1-4 , chloro, bromo, nitro or alkoxy group, preferably R is a phenyl, diphenyl, naphthyl or anthraquinonyl radical, m and n each represent 1 or 2. Suitable amides are dimethyl formamide, N,N-dimethyl acetamide and N- alkyl lactams. The reaction may be carried out at a temperature of from 150-220‹ C. A hydrogen halide may also be added to the reaction mixture.
GB44824/69A 1968-09-12 1969-09-11 Production of aromatic isocyanates bearing sulfohalide groups Expired GB1273180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681793407 DE1793407A1 (en) 1968-09-12 1968-09-12 Process for the preparation of aromatic isocyanates bearing sulfohalide groups

Publications (1)

Publication Number Publication Date
GB1273180A true GB1273180A (en) 1972-05-03

Family

ID=5707695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44824/69A Expired GB1273180A (en) 1968-09-12 1969-09-11 Production of aromatic isocyanates bearing sulfohalide groups

Country Status (3)

Country Link
DE (1) DE1793407A1 (en)
FR (1) FR2017875A1 (en)
GB (1) GB1273180A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855938A1 (en) * 1978-12-23 1980-07-10 Bayer Ag ISOCYANATOARYLSULFOCHLORIDE, A METHOD FOR THE PRODUCTION THEREOF AND THEIR USE IN THE PRODUCTION OF POLYISOCYANATE-POLYADDITION PRODUCTS
DE2945867A1 (en) * 1979-11-14 1981-06-04 Bayer Ag, 5090 Leverkusen SUBSTITUTED POLYISOCYANATES OR POLYISOCYANATE MIXTURES OF THE DIPHENYLMETHANE RANGE CONTAINING CHLORSULFONYL GROUPS, A METHOD FOR THE PRODUCTION THEREOF AND THEIR USE IN THE PRODUCTION OF POLYISOCDYANITION-POLYISADDYANITION-POLYISADYANADINE POLYES
DE19735444C2 (en) * 1997-06-17 1999-04-15 Ibs Filtran Kunststoff Metall Oil filter insert for oil sumps of engines and transmissions

Also Published As

Publication number Publication date
DE1793407A1 (en) 1972-02-03
FR2017875A1 (en) 1970-05-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees