QUINOXALINE AND MANUFACTURE

Quinoxalines of the formula are provided, in which R1 is hydrogen if R3 and R4 conjointly are -O(CH2)pO-, or is -CH2OR, -CH2NRR', -CH2OCOR, -CH2Cl, -CH2Br, -CH2CN, -CH2SR, -CH2SCN, -CH2O(CH2)mOR, -CH2(OCH2CH2)nOR, -CH2SO2R5, -CH2PO(OR5)2, -CH2SO3R6 or -CH2PO(OR6)2 and R2 is lower alkyl, -CH2PO(...

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Bibliographische Detailangaben
Hauptverfasser:	RUMON AAGEN, JIYON RUNOWAARU, JIERARUDO JIAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMISTRY CINEMATOGRAPHY ELECTROGRAPHY HETEROCYCLIC COMPOUNDS HOLOGRAPHY METALLURGY ORGANIC CHEMISTRY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	Quinoxalines of the formula are provided, in which R1 is hydrogen if R3 and R4 conjointly are -O(CH2)pO-, or is -CH2OR, -CH2NRR', -CH2OCOR, -CH2Cl, -CH2Br, -CH2CN, -CH2SR, -CH2SCN, -CH2O(CH2)mOR, -CH2(OCH2CH2)nOR, -CH2SO2R5, -CH2PO(OR5)2, -CH2SO3R6 or -CH2PO(OR6)2 and R2 is lower alkyl, -CH2PO(OR5)2, -CH2PO(OR6)2 or CH2SO3R6, R3 and R4 independently are lower alkyl, lower alkoxy, RO(CH2)mO- or RO(CH2CH2O)n- or R3 and R4 conjointly are -O(CH2)pO-, R and R' independently are hydrogen or lower alkyl, R5 is lower alkyl, R6 is hydrogen, an alkali metal cation or -N(+)(R)4, m is 3 or 4, n is 1 to 3 and p is 1 or 2. The quinoxalines are useful as bleach catalysts, especially as dye bleach catalysts, in processing baths for the photographic silver dye bleach process.