Studies on Fluorene Derivatives. XIII. The Formation of Tribiphenylenepropane by Self-condensation of Dibiphenyleneethylene

K Suzuki, S Kajigaeshi

Index: Suzuki,K.; Kajigaeshi,S. Bulletin of the Chemical Society of Japan, 1962 , vol. 35, p. 408 - 412

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Citation Number: 11

Abstract

Certain halides possessing a relatively reactive a-hydrogen such as 9-halogenofluorenes or its derivatives are converted to dimeric olefines by the action of methanolic potassium hydroxide in acetone at room temperature. Thus, 9-bromo-(or chloro)-fluorene25 gave dibiphenyleneethylene (I). The corresponding substituted I are obtained in good yields from 2-nitro-9-bromofluorene33, l-chloro-9-bromofluorene, 2, 9-dibromofluorene53, 3, 9- ...