Tetrahedron letters

Further intramolecular reactions of 1, 2, 4-triazines. Synthesis of furo [2, 3-b] pyridines and dihydropyrano [2, 3-b] pyridines

EC Taylor, JE Macor

Index: Taylor, Edward C.; Macor, John E. Tetrahedron Letters, 1986 , vol. 27, # 4 p. 431 - 432

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Citation Number: 19

Abstract

Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... 3-(3-Butynyloxy)- and 3-(4-pentnyloxy)-1,2,4-triazines undergo facile intramolecular Diels-Alder reactions to yield 2,3-dihydrofuro(2,3- )pyridines and dihydropyrano(2,3- )pyridines respectively. The former are readily dehydrogenated with DDQ to furo(2,3- )pyridines.