GB1456267A - Benzofuran derivatives and their use as optical brighteners - Google Patents

Benzofuran derivatives and their use as optical brighteners

Info

Publication number
GB1456267A
GB1456267A GB613674A GB613674A GB1456267A GB 1456267 A GB1456267 A GB 1456267A GB 613674 A GB613674 A GB 613674A GB 613674 A GB613674 A GB 613674A GB 1456267 A GB1456267 A GB 1456267A
Authority
GB
United Kingdom
Prior art keywords
group
general formula
aryl
optical brighteners
benzofuran derivatives
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
GB613674A
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Publication of GB1456267A publication Critical patent/GB1456267A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
    • C07D307/84—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
    • C07D307/85—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Furan Compounds (AREA)
  • Detergent Compositions (AREA)

Abstract

1456267 Benzofuran derivatives and their use as optical brighteners HOECHST AG 11 Feb 1974 [9 Feb 1973] 06136/74 Heading C2C The invention comprises compounds of the general Formula I in which each of A and B, which may be identical or different, represents an aryl or partially hydrogenated mononuclear or polynuclear ring system; each of R<SP>01</SP> and R<SP>02</SP>, which may be identical or different, represents a hydrogen atom, a halogen atom, an alkyl group having up to 4 carbon atoms, a carboxy group, a sulpho group, a functionally modified carboxy or sulpho group, or a phenyl group that is either unsubstituted or substituted by one or more identical or different substituents selected from alkyl or alkoxy groups having up to 4 carbon atoms and halogen atoms; and D represents a divalent aliphatic, aryl or aromatic-heterocyclic or aryl-aliphatic radical conjugated with the rings to which it is attached. The compounds of the invention are used as optical brighteners. The benzofuran derivatives may be prepared by reacting a carboxylic acid derivative of the general formula with a carboxylic acid derivative of the general formula in which formulae A, B, D, R<SP>01</SP> and R<SP>02</SP> are defined as above and one of the symbols Z<SP>1</SP> and Z<SP>2</SP> represents a halogen atom and the other symbol Z<SP>1</SP> or Z<SP>2</SP> represents the group -NH-NH 2 , in an inert organic diluent, optionally with the use of an acid acceptor, e.g. a tertiary amine at a temperature of 20‹ to 220‹ C. and preferably in a molar ratio of 1 : 1 to give a diacylhydrazide of the formula in which A, B, D, R<SP>01</SP> and R<SP>02</SP> are defined as above and then subsequently splitting off water to give the compound of general Formula I.
GB613674A 1973-02-09 1974-02-11 Benzofuran derivatives and their use as optical brighteners Expired GB1456267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH188173A CH593379B5 (en) 1973-02-09 1973-02-09

Publications (1)

Publication Number Publication Date
GB1456267A true GB1456267A (en) 1976-11-24

Family

ID=4220761

Family Applications (1)

Application Number Title Priority Date Filing Date
GB613674A Expired GB1456267A (en) 1973-02-09 1974-02-11 Benzofuran derivatives and their use as optical brighteners

Country Status (15)

Country Link
JP (1) JPS49112928A (en)
AT (1) AT332869B (en)
BE (1) BE810844A (en)
BR (1) BR7400946D0 (en)
CA (1) CA1026342A (en)
CH (2) CH593379B5 (en)
DE (1) DE2405063A1 (en)
ES (1) ES422902A1 (en)
FR (1) FR2217338B1 (en)
GB (1) GB1456267A (en)
IN (1) IN140448B (en)
IT (1) IT1007261B (en)
NL (1) NL7401502A (en)
SE (1) SE386899B (en)
SU (1) SU577993A3 (en)

Also Published As

Publication number Publication date
IT1007261B (en) 1976-10-30
ATA96074A (en) 1976-02-15
CH593379B5 (en) 1977-11-30
DE2405063A1 (en) 1974-08-15
JPS49112928A (en) 1974-10-28
CA1026342A (en) 1978-02-14
AU6530974A (en) 1975-08-07
BE810844A (en) 1974-08-12
BR7400946D0 (en) 1974-11-05
SU577993A3 (en) 1977-10-25
IN140448B (en) 1976-11-13
FR2217338B1 (en) 1977-06-10
FR2217338A1 (en) 1974-09-06
AT332869B (en) 1976-10-25
CH188173A4 (en) 1977-03-31
ES422902A1 (en) 1976-09-16
NL7401502A (en) 1974-08-13
SE386899B (en) 1976-08-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee