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Title: Sulfonation of arylamines Part 9 - Solid state synthesis of di-ortho ring substituted aminobenzenesulfonic acids
Authors: Singh, Gurdip
Kapoor, Inder Pal Singh
Singh, Jyotsna
Issue Date: Sep-1999
Publisher: NISCAIR-CSIR, India
Abstract: Di-ortho ring substituted arylammonium sulfates (Di-o-RSAS) have been prepared from the corresponding arylamines by treatment with cone. H2SO4 and characterized by elemental, gravimetric and spectral analyses. These sulfates yield the corresponding ring substituted aminobenzenesulfonic acids (RSABSA) when subjected to thermal energy. Non-isothermal gravimetric studies on di-o-RSAS support the formation of RSABSA. It is observed that most of the salts undergo transformation to acid in solid state via proton transfer reaction prior to sulfonation.
Page(s): 1114-1117
Appears in Collections:IJC-B Vol.38B(09) [September 1999]

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