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Synthesis of the First Representatives of Benzanellated Dihydroselenochromenes.

✍ Scribed by Ya. B. Drevko; O. V. Fedotova


Publisher
John Wiley and Sons
Year
2007
Weight
15 KB
Volume
38
Category
Article
ISSN
0931-7597

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✦ Synopsis


Abstract

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A novel approach towards the synthesis of functionalized benzo[a]heptalenes 9 and 10 via a 6pelectrocyclic ring closure Β± aromatization sequence of corresponding bis[prop-2-enoates] 5 and 6 has been developed (Scheme 1). The starting bis[prop-2-enoates] have been prepared from the corresponding dial