Quinonyl-bis-thoacetic acid amides

Quinonyl-bis-thioacetic acid amides New cpds. have a p-quinone structure carrying substituents R1 and R2 in the 1- and 2-positions and substituent -S-CH2CONR3R4 in the 3- and 4-positions wherein R1 and R2 are same or different alkyl, alkoxy, opt. substd. phenyl or phenoxy residue or R1 and R2 togeth...

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Bibliographic Details
Main Author HERMANN OEDIGER,DR
Format Patent
LanguageEnglish
German
Published 10.09.1970
Subjects
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Summary:Quinonyl-bis-thioacetic acid amides New cpds. have a p-quinone structure carrying substituents R1 and R2 in the 1- and 2-positions and substituent -S-CH2CONR3R4 in the 3- and 4-positions wherein R1 and R2 are same or different alkyl, alkoxy, opt. substd. phenyl or phenoxy residue or R1 and R2 together can be constituents of a 5-7 membered ring, and R3 and R4 are same or different residue as H, aliphatic, opt. substd. araliphatic or 5-7 membered residue bound via an aliphatic bridge or R3 and R4 together can be constituents of a heterocyclic ring. Useful as stabilisers for photographic emulsions.
Bibliography:Application Number: DE19691910894