Cu (I) substitutions. furo [3, 2??b] pyridines, furo [3, 2??c] pyridines and 1h??thieno [3, 4??b] 2??pyran??l??ones from cuprous acetylides
SA Mladenović, CE Castro
Index: Mladenovic,S.A.; Castro,C.E. Journal of Heterocyclic Chemistry, 1968 , vol. 5, p. 227 - 230
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Citation Number: 16
Abstract
Abstract The reaction of cuprous acetylides with aryl halides bearing a nucleophilic ortho substituent provides a versatile route to heterocyclic substances. The present work portrays the ease with which polyheterosystems can be constructed with this reaction. The synthesis of 2-substituted 7-iodofuro [3, 2-c] pyridines, 2-substituted furo [3, 2-b] pyridines, and 3- substituted lH-thieno-[3, 4-b]-2-pyran-l-ones (thiaisocoumarins) is described. The latter ...
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