Studies in the Biphenyl Series. VI. Orientation in Bromination of 4-Ethoxybiphenyl and Bromo-4-ethoxybiphenyls1

JL Abernethy, H Pollock

文献索引：Abernethy; Pollock Journal of the American Chemical Society, 1951 , vol. 73, p. 1514

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被引用次数: 2

摘要

From the results of bromination of 4-hydroxybiphenyl, its esters, methyl ether, and their halo derivatives, it is evident that the 3-, 5-and 4 '-positions of the biphenyl nucleus are the ones activated. According to well-known theory, electrophilic attacks of bromine are facilitated by relatively high electron densities in these three positions. The solvent plays an important role in orientation of an entering substituent into these positions as is evident in the cases of ...