Biphenylenes. Part XV. 3, 7-Dimethyl-and 3, 7-dimethoxy-1, 5-dinitrobiphenylene

CR Harrison, JFW McOmie, JB Searle…

Index: Harrison,C.R. et al. Journal of the Chemical Society [Section] C: Organic, 1966 , p. 1769 - 1771

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Abstract

The compound produced by reaction of 3, 4-dibromo-5-nitrotoluene with copper bronze has been shown to be 3, 7-dimethyl-1, 5-dinitrobiphenylene. The analogous 3, 7- dimethoxybiphenylene has been prepared similarly from 3, 4-dibromo-5-nitroanisole. The dipole moment of the dimethyldinitrobiphenylene has been found to be about 2· 4 D. This unexpected result is discussed.