Biphenylenes. Part XIV. Synthesis of 1-and 2-phenyl-, 2, 7-dimethyl-, and 2, 3, 6, 7-tetramethyl-biphenylene

PR Constantine, GE Hall, CR Harrison…

Index: Constantine,P.R. et al. Journal of the Chemical Society [Section] C: Organic, 1966 , p. 1767 - 1769

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Citation Number: 4

Abstract

1-and 2-Phenylbiphenylene have been made from 1-and 2-lithiobiphenylene, respectively, by treatment with cyclohexanone followed by dehydration and dehydrogenation. 2- Phenylbiphenylene has also been made by pyrolysis of 4-and 5-phenyl-biphenylene-2, 2′- iodonium iodide with cuprous oxide. One new synthesis of 2, 7-di