REACTIVITY OF THE AMINO-GROUPS IN ,3'-DIAMINO-4,4'-DI(P-AMINOPHENOXY)DIPHENYLSULFONE

Authors
SHIFRINA ZB RUSANOV AL URMAN YG
Citation
Zb. Shifrina et al., REACTIVITY OF THE AMINO-GROUPS IN ,3'-DIAMINO-4,4'-DI(P-AMINOPHENOXY)DIPHENYLSULFONE, Russian chemical bulletin, 42(2), 1993, pp. 251-254
Citations number
8
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
42
Issue
2
Year of publication
1993
Pages
251 - 254
Database
ISI
SICI code
1066-5285(1993)42:2<251:ROTAI,>2.0.ZU;2-Y
Abstract
Reactivities of the amino groups in ,3'-diamino-4,4'-di(p-aminophenoxy )diphenylsulfone were estimated by MO calculations using the Paryzer-P arr-Pople method, by potentiometric measurement of their pK(a) values, and by the C-13 NMR spectroscopic study of the products obtained on r eaction of the tetramine with two moles of 1,8-naphthalic anhydride. T he results of these studies prove unambiguously the higher reactivity of the amino groups in positions 4 and 4' of the phenoxide moieties.