41949-30-8Relevant articles and documents
ORIENTATION IN THE SULFONATION OF BIPHENYL IN SULFURIC ACID SYSTEMS
Zaraiskii, A. P.,Kachurin, O. I.
, p. 1940 - 1943 (2007/10/02)
Previously obtained calculated data on the orientation during the monosulfonation of biphenyl with 100percent sulfuric acid in the presence of O.2 mole/kg of nitrobenzene were confirmed by a flow technique.With dilution of the system to 7.5 mole/kg with nitrobenzene the ortho/para and meta/para ratios decrease by 500 and 40 times respectively.The probable reasons for this phenomenon are discussed.