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1,180,845. Oximes. GEVAERT-AGFA N.V. 12 July, 1968 [8 Aug., 1967], No. 36393/67. Heading C2C. [Also in Divisions C3 and G2] The preparation of the following oximes is illustrated: (a) 1 - (p - Hydroxyphenyl) - 1,2 - propanedione- 2-oxime is prepared by treating p-hydroxypropiophenone in ether with b...

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Bibliographische Detailangaben
Hauptverfasser:	LEOPOLD LARIDON,URBAIN, ALBERT,DELZENNE,GERARD
Format:	Patent
Sprache:	ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON ELECTROGRAPHY HOLOGRAPHY MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS THEREFOR METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS ORIGINALS THEREFOR PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	1,180,845. Oximes. GEVAERT-AGFA N.V. 12 July, 1968 [8 Aug., 1967], No. 36393/67. Heading C2C. [Also in Divisions C3 and G2] The preparation of the following oximes is illustrated: (a) 1 - (p - Hydroxyphenyl) - 1,2 - propanedione- 2-oxime is prepared by treating p-hydroxypropiophenone in ether with butyl nitrite and HCl gas, extracting with aqueous NaOH and precipitating the product in cold aqueous HCl; (b) p - Hydroxyphenylglyoxal-aldoxime is prepared by (i) heating p-hydroxyacetophenone with selenium dioxide in dioxan/water to form p-hydroxyphenylglyoxal hydrate which is purified with animal charcoal, and (ii) treating an ethanol solution of this product with an aqueous hydroxylamine hydrochloride solution in the presence of NaOH; (c) 2,3 - Butanedione - mono - (O -methacrylyloxime) is prepared by adding methacryloyl chloride dropwise to a methylene chloride solution of diacetylmonoxime containing pyridine.