Correction of a Reported Xanthone Synthesis: The Preparation of a Benzo[c]coumarin |
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| Authors: | Michael H Benn Masood Parvez Nigel B Perry Arvi Rauk John W van Klink |
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| Institution: | 1. Chemistry Department University of Calgary, Calgary, Alberta, T2N?1N4, Canada;2. Plant Extracts Research Unit, New Zealand Institute for Plant and Food Research Ltd, Chemistry Department, University of Otago, P.?O. Box 56, Dunedin, New Zealand, (phone: +64‐3‐479‐8966) |
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| Abstract: | Reinvestigation of a reported synthesis of 5,8‐dihydroxy‐1,3‐dimethoxyxanthone from the reaction of 3,5‐dimethoxyphenol with 2‐(methoxycarbonyl)‐1,4‐benzoquinone resulted in the identification of the product as the isomer of benzoc]coumarin, i.e., 7,10‐dihydroxy‐1,3‐dimethoxy‐6H‐dibenzob,d]pyran‐6‐one, established by X‐ray crystallography. This requires the revision of the structures of the derivatives that were reported. |
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| Keywords: | Xanthones Benzo[c]coumarin Bellidin X‐Ray crystallography |
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