Affiliation:
1. Institut für Pharmakognosie und Phytochemie der Freien Universität Berlin, Königin-Luise-Straße 2 + 4, D-1000 Berlin 33
Abstract
Abstract
The photochemical behaviour of 5,6-Dehydrokawain (1) was investigated. An aceton solution of 1 was placed into a Petri-dish and allowed to evaporate. After a four weeks irradiation with a 100 W light bulb from a distance of 30 cm [1] the main component was isolated. Its structure and configuration is elucidated as r-1,c-2-di[6-(4-methoxy-2- pyronyl) ] - t- 3 ,t -4-diphenyIcyclobutane (2) by means of spectroscopic methods and correlation with β-truxinic acid after degradative reaction.
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5 articles.
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