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Photochemistry of ommochrome pigments
Author(s) -
Bolognese Adele,
Liberatore Rosa
Publication year - 1988
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570250438
Subject(s) - chemistry , pigment , acetic acid , hydrochloric acid , solvent , chromic acid , irradiation , extraction (chemistry) , photochemistry , butanol , chromatography , nuclear chemistry , ethanol , organic chemistry , physics , nuclear physics
The ommochrome pigment present in the eyes of Loligo Vulgaris was extracted with a butanol‐acetic acid‐hydrochloric acid solution. The extraction mixture was examined before and after irradiation by visible light. A phenoxazinone ring opening together with a photo‐induced solvent addition, causing a yellow‐red batho‐chromic shift, were observed and a plausible explanation of the process has been carried out and is reported on the basis of the isolated products.