The synthesis and reactions of arylfurocondensed derivatives

A Krutošíková, J Kováč…

Index: Krutosikova, Alzbeta; Kovac, Jaroslav; Kralovicova, Eva Collection of Czechoslovak Chemical Communications, 1983 , vol. 48, # 7 p. 1878 - 1884

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Citation Number: 9

Abstract

Abstract The preparation of new 9-arylfuro [2', 3': 4, 5] pyrrolo [1, 2-d]-1, 2, 4-triazolo [3, 4-f]-1, 2, 4-triazines (V) and 7-aryl-1, 4-dioxo-1, 2, 3, 4-tetrahydrofuro [2', 3': 4, 5] pyrrolo [1, 2-d]-1, 2, 4-triazines (VII) from 2-aryl-4H-furo [3, 2-b] pyrrole-5-carbohydrazides (I) is described. Reaction of I with triethyl orthoformate or acetate afforded 7-aryl-1, 2-dihydrofuro [2', 3': 4, 5] pyrrolo [1, 2-d]-1, 2, 4-triazin-1-ones, or their 4-methyl analogues II giving with phosphorus ...