Journal of Fluorine Chemistry

… ]. The hydrolysis of 1, 3, 4, 5, 6, 7, 8-heptafluoro-2-naphthylidenerhodanine to form ring-fused thiophenes. A significant proportion of a linear naphtho [2, 3-b] thiophene …

GM Brooke, JM Meara

Index: Brooke, Gerald M.; Meara, Jeremy M. Journal of Fluorine Chemistry, 1990 , vol. 50, # 2 p. 229 - 242

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Citation Number: 7

Abstract

Abstract 1, 3, 4, 5, 6, 7, 8-Heptafluoronaphthalene-2-carbaldehyde (7), prepared via a Grignard reaction from 2-bromo-1, 3, 4, 5, 6, 7, 8-heptafluoronaphthalene (9) with N- methylformanilide, reacted with rhodanine to give 1, 3, 4, 5, 6, 7, 8-heptafluoro-2- naphthylidenerhodanine (5). Hydrolysis of (5) with base gave a mixture of 4, 5, 6, 7, 8, 9- hexafluoronaphtho [2, 3-b] thiophene-2-carboxylic acid (11) and 4, 5, 6, 7, 8, 9- ...