The reactions of 4-substituted-7-aminoth
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A. M. Hussein; A. A. Atalla; I. S. Abdel-Hafez; M. H. Elnagdi
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Article
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1997
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John Wiley and Sons
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English
⚖ 163 KB
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,