ES383683A1 - Coumarin derivatives and their use as optical brighteners - Google Patents

Coumarin derivatives and their use as optical brighteners

Info

Publication number
ES383683A1
ES383683A1 ES383683A ES383683A ES383683A1 ES 383683 A1 ES383683 A1 ES 383683A1 ES 383683 A ES383683 A ES 383683A ES 383683 A ES383683 A ES 383683A ES 383683 A1 ES383683 A1 ES 383683A1
Authority
ES
Spain
Prior art keywords
formula
coumarin
substituted
see formula
optical brighteners
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
ES383683A
Other languages
Spanish (es)
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.)
Novartis AG
Original Assignee
JR Geigy 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 JR Geigy AG filed Critical JR Geigy AG
Publication of ES383683A1 publication Critical patent/ES383683A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Procedure for the preparation of coumarin compounds of formula I **(See formula)** in which R1 and R2 represent alkyl groups with 1 to 6 carbon atoms, Y represents a mononuclear carbo- or hetero-cyclic aryl group, which is in conjugation with the coumarin ring, and the coumarin radical, like the benzene nucleus A, may still be substituted by halogen or lower alkyl and/or alkoxy, characterized by reacting an oxime of formula III in an acidic medium **(See formula)** with a coumarinylhydrazine of formula IV **(See formula)** which can also be substituted as indicated above, to form the respective oxyhydrazone; and because it is converted, with the help of a condensing agent, into a compound of formula I. (Machine-translation by Google Translate, not legally binding)
ES383683A 1969-09-17 1970-09-16 Coumarin derivatives and their use as optical brighteners Expired ES383683A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1408969A CH550884A (en) 1969-09-17 1969-09-17

Publications (1)

Publication Number Publication Date
ES383683A1 true ES383683A1 (en) 1973-03-01

Family

ID=4397868

Family Applications (1)

Application Number Title Priority Date Filing Date
ES383683A Expired ES383683A1 (en) 1969-09-17 1970-09-16 Coumarin derivatives and their use as optical brighteners

Country Status (7)

Country Link
CA (1) CA934760A (en)
CH (2) CH550884A (en)
DE (1) DE2045796A1 (en)
ES (1) ES383683A1 (en)
FR (1) FR2062198A5 (en)
GB (1) GB1318215A (en)
NL (1) NL7013697A (en)

Also Published As

Publication number Publication date
CH1408969A4 (en) 1974-01-31
CH550884A (en) 1974-06-28
CA934760A (en) 1973-10-02
DE2045796A1 (en) 1971-04-01
NL7013697A (en) 1971-03-19
GB1318215A (en) 1973-05-23
FR2062198A5 (en) 1971-06-25

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