In previous work Raiford and Miller1 showed that when a phenol or cresol containing bromine in both ortho and para positions is treated with nitrous acid, a halogen atom may be replaced by the nitro radical and isomeric mononitro compounds may be formed. Chlorine cannot be replaced in this way.
Proceedings of the Iowa Academy of Science
©1937 Iowa Academy of Science, Inc.
Raiford, L. Chas. and Kaiser, Donald W.
"Nitration of the Tribromo Substitution Product of Sym-Xylenol,"
Proceedings of the Iowa Academy of Science, 44(1), 125-126.
Available at: https://scholarworks.uni.edu/pias/vol44/iss1/30