15309-69-0Relevant articles and documents
Reductive acylamination of pyridine N-oxide with aminopyridines and their N-p-tolylsulfonyl derivatives
Solekhova,Kurbatov
, p. 128 - 130 (2007/10/03)
Pyridine N-oxide reacts with 2- and 3-aminopyridines and their N-p-tolylsulfonyl derivatives in alkaline medium in the presence of p-toluenesulfonyl chloride to give N-p-tolylsulfonyl-2,2′- and 2,3′-dipyridylamines, respectively, as a result of reductive acylamination. In the reactions with 4-aminopyridine and 4-p-tolylsulfonyl- aminopyridine, their N-p-tolylsulfonyl- and N,N-bis(p-tolylsulfonyl) derivatives are formed, while reductive acylamination does not occur. 2005 Pleiades Publishing, Inc.
Nucleophilic Substitution at the Tetracoordinated Sulfur. V. Reactivity of Amines and Azole Anions in Respect to Aryl 4-Tosylates in 80% Aqueous Dimethyl Sulfoxide
Savelova,Zubareva,Simanenko
, p. 1495 - 1500 (2007/10/03)
Acid dissociation constants of ammonium cations, imidazoles and phenols as well as the rates of aminolysis of p-toluenesulfonic esters 4-CH3C6H4SO2OC6H 4R in 80% aqueous DMSO at 25°C are measured. The angular coefficients of onsted plots in respect to attacking electrophiles and leaving group are close to those obtained earlier in protic media, indicating the similarity of the structure of transition states.