A simple synthesis of 2h-pyrans; A one-s
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Ae.de Groot; B.J.M. Jansen
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Article
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1975
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Elsevier Science
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French
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Valence isomerism menon. The influence between ZH-pyrans and cis-dienones is a well known phenoof substituents on the equilibrium position has been stu-1 7 r; diedlm4 and several synthetic approaches have been applied""'. Especially in the field of the chromenes the synthetic efforts are concentrat