Isolation by HPLC. and Identification by
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Gerhard Englert; Siegfried Weber; Michael Klaus
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Article
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1978
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John Wiley and Sons
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German
⚖ 685 KB
## Abstract Photoisomerization of an aromatic analogue of retinoic acid, ethyl all‐__trans__‐9‐(4‐methoxy‐2,3,6‐trimethylphenyl)‐3,7‐dimethyl‐nona‐2,4,6, 8‐tetraenoate **1** in dilute solutions of hexane, benzene, and ethanol yielded multi‐component mixtures of __cis__ isomers which were separated