JPH0233694B

The new dibenzoylmethane derivatives of the formula in which R1 denotes hydrogen, methyl or ethyl and R2 denotes methyl or ethyl and R3 represents a straight-chain or branched lower alkyl radical, can be prepared by reacting acetophenone derivatives with an anisic ester or by reacting a substituted...

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Bibliographische Detailangaben
Hauptverfasser:	RUDORUFU HOTSUPU, HORUSUTO FUINKERUMAIAA, ROORANTO RANGUNAA
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES CHEMISTRY DYES HUMAN NECESSITIES HYGIENE MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEDICAL OR VETERINARY SCIENCE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS POLISHES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Beschreibung
Zusammenfassung:	The new dibenzoylmethane derivatives of the formula in which R1 denotes hydrogen, methyl or ethyl and R2 denotes methyl or ethyl and R3 represents a straight-chain or branched lower alkyl radical, can be prepared by reacting acetophenone derivatives with an anisic ester or by reacting a substituted benzoic ester with p-methoxyacetophenone. The compounds can be used in sunscreen agents.