Reaction Kinetics & Catalysis Letters. Kluwer Academic Publishers. Том 6. 1977. С. 51-57
2,5-Dimethyl-4-phenylpyridine is nitrated in the para position of the phenyl ring. Further nitration of the resulting nitro compound gives a mixture of isomeric dinitro derivatives. In the case of 4-phenylisocinchomeronic acid the nitro group enters the meta position of the phenyl ring. © 1977 Plenum Publishing Corporation.