The correct synthesis of 2,3-dihydro-2-a
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Vittoria Colotta; Lucia Cecchi; Fabrizio Melani; Giovanna Palazzino; Guido Filac
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Article
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1987
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Elsevier Science
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French
β 192 KB
The claimed synthesis of 2a from 2-methyl-3-chromonecarbonitrile is shown not to lead to%, as previously reported but to 1,4-dihydro-l-phenyl-3-methyl[l]benzopyrano~3,4-d]pyrazole-4-one IOa.