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ChemInform Abstract: Reactivity of Condensed Thiophenes in the Diels-Alder Reaction: The Reactivity of 3-Aminothieno(3,4:3′,4′)benzo(b)pyranone; 3-Aminothieno( 3,4-c)quinoline and of 5-Amino-7-Substituted Thieno(3,4-d)pyridazinone Toward Electron-Poor Olefins and Acetylenes.

✍ Scribed by F. AL-OMRAN; M. M. ABDEL KHALIK; H. AL-AWADHI; M. H. ELNAGDI


Publisher
John Wiley and Sons
Year
2010
Weight
34 KB
Volume
28
Category
Article
ISSN
0931-7597

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Cycloadditions of thienopyridazines and a thienopyridine with electron-poor olefins and acetylenes as dienophiles are described. The nonisolable adducts undergo subsequent loss of hydrogen sulfide to give substituted phthalazines and substituted isoquinolines, respectively. ᭧ 1997 John Wiley & Sons,