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PHOTOCHEMICAL REACTIONS OF DIBROMOTHYMOQUINONE: STRUCTURE AND INHIBITORY PROPERTIES OF THE PHOTOPRODUCT
Author(s) -
Stidham Mark A.,
Siedow James N.
Publication year - 1983
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1983.tb03379.x
Subject(s) - chemistry , photochemistry , spectroscopy , nuclear magnetic resonance spectroscopy , inhibitory postsynaptic potential , photosynthesis , electron paramagnetic resonance , stereochemistry , nuclear magnetic resonance , biochemistry , physics , quantum mechanics , neuroscience , biology
Abstract— The chemical structure of the major product that resulted from illumination of ethanolic solutions of dibromothymoquinone was deduced using 13 C‐and 1 H‐nuclear magnetic resonance spectroscopy. The photoproduct is 2,5‐dibromo‐3‐allyl‐6‐methyl‐ p ‐dihydrobenzoquinone. The inhibition of photosynthetic electron transport by the photoreduced compound was found to be roughly equivalent to inhibition by nonirradiated dibromothymoquinone.