GB1250388A - - Google Patents

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Publication number
GB1250388A
GB1250388A GB1250388DA GB1250388A GB 1250388 A GB1250388 A GB 1250388A GB 1250388D A GB1250388D A GB 1250388DA GB 1250388 A GB1250388 A GB 1250388A
Authority
GB
United Kingdom
Prior art keywords
compounds
dialkyl
hydroxy
prepared
iii
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
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 filed Critical
Publication of GB1250388A publication Critical patent/GB1250388A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K15/00—Anti-oxidant compositions; Compositions inhibiting chemical change
    • C09K15/04—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds
    • C09K15/06—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds containing oxygen
    • C09K15/08—Anti-oxidant compositions; Compositions inhibiting chemical change containing organic compounds containing oxygen containing a phenol or quinone moiety
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/56—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
    • C07D311/26—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3
    • C07D311/28—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3 with aromatic rings attached in position 2 only
    • C07D311/32—2,3-Dihydro derivatives, e.g. flavanones

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,250,388. Chalcones and flavanones. CHEVRON RESEARCH CO. 26 Nov., 1969 [27 Nov., 1968], No. 57963/69. Heading C2C. [Also in Division C3] The invention comprises compounds of the Forrnulµ I, II and III where R 1 -R 4 are alkyl C 1-4 radicals. Compounds I and II are prepared by the acid catalysed condensation of o-hydroxyacetophenone and a 4 - hydroxy - 3,5 - dialkyl benzaldehyde. Compounds III are prepared by reaction of compounds II with the same or a different 4- hydroxy-3,5-dialkyl benzaldehyde. 4 - Hydroxy - 3,5 - dialkyl benzaldehydes are prepared by reacting a 2,6-dialkylphenol with boric acid, hexamethylene tetramine, followed by the addition of sulphuric acid. Compounds I, II and III act as oxidation inhibitors.
GB1250388D 1968-11-27 1969-11-26 Expired GB1250388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77962668A 1968-11-27 1968-11-27

Publications (1)

Publication Number Publication Date
GB1250388A true GB1250388A (en) 1971-10-20

Family

ID=25116995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250388D Expired GB1250388A (en) 1968-11-27 1969-11-26

Country Status (1)

Country Link
GB (1) GB1250388A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608150A1 (en) * 1986-12-16 1988-06-17 Oreal COSMETIC COMPOSITION CONTAINING HYDROXYL DERIVATIVES OF CHALCONE AND ITS USE FOR THE PROTECTION OF SKIN AND HAIR AGAINST LUMINOUS RADIATION, NEW HYDROXYL DERIVATIVES OF CHALCONE USED AND PROCESS FOR THE PREPARATION THEREOF
US4885298A (en) * 1983-08-31 1989-12-05 Zyma Sa Pharmaceutical preparations containing flavanone or thioflavanone derivatives the use thereof, novel flavanones and thioflavanones, and processes for their manufacture
JPH0625212A (en) * 1992-03-31 1994-02-01 Adir New 3',5'-tert-butyl-4'-hydroxyflavone

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885298A (en) * 1983-08-31 1989-12-05 Zyma Sa Pharmaceutical preparations containing flavanone or thioflavanone derivatives the use thereof, novel flavanones and thioflavanones, and processes for their manufacture
FR2608150A1 (en) * 1986-12-16 1988-06-17 Oreal COSMETIC COMPOSITION CONTAINING HYDROXYL DERIVATIVES OF CHALCONE AND ITS USE FOR THE PROTECTION OF SKIN AND HAIR AGAINST LUMINOUS RADIATION, NEW HYDROXYL DERIVATIVES OF CHALCONE USED AND PROCESS FOR THE PREPARATION THEREOF
BE1000652A4 (en) * 1986-12-16 1989-02-28 Oreal COSMETIC COMPOSITION CONTAINING HYDROXYLATED CHALCON DERIVATIVES AND ITS USE FOR PROTECTING THE SKIN AND HAIR AGAINST LIGHT RADIATION, NEW HYDROXYLATED CHALCONE DERIVATIVES AND THEIR PREPARATION METHOD.
US4867964A (en) * 1986-12-16 1989-09-19 L'oreal Cosmetic composition containing hydroxylated chalcone derivatives and its use for protecting the skin and the hair against luminous radiations, new hydroxylated chalcone derivatives employed and process for their preparation
JPH0625212A (en) * 1992-03-31 1994-02-01 Adir New 3',5'-tert-butyl-4'-hydroxyflavone
US5457103A (en) * 1992-03-31 1995-10-10 Adir Et Compagnie 3',5'-di-tert.-butyl-4'-hydroxy flavones
JPH07119221B2 (en) 1992-03-31 1995-12-20 アディール エ コンパニー Novel 3 ', 5'-di-tert-butyl-4'-hydroxyflavone

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee