5771-02-8Relevant articles and documents
Response surface methodology for oxidative degradation of the basic yellow 28 dye by temperature and ferrous ion activated persulfate
G?zmen, Belgin,S?nmez, ?zgür,Turabik, Meral
, p. 6831 - 6839 (2013/07/26)
The decomposition of the persulfate by Fe2+ ions results in the production of oxidative sulfate radical anions. In present study, the oxidative degradation of the basic yellow 28 dye solution was studied by using persulfate and ferrous ions. To
Thermolysis of Geminal Bisazoalkanes. Stabilization of a Carbon-Centered Radical by the Azo Substituent
Engel, Paul S.,Wang, Chengrong,Chen, Yan-Qiu,He, Shu-Lin,Andrews, B. Kim,Weisman, R. Bruce
, p. 6257 - 6261 (2007/10/02)
Two geminal bisazoalkanes (1 and 2) have been employed to generate a radical center next to the azo group.The 8.0 kcal/mol lower ΔG(excit.) for thermolysis of 1 and 2 relative to model compounds 6 and 7 is dissected into a 1 kcal/mol contribution from ground state elevation of 1 and 2 and at least 2.6 kcal/mol from phenyl stabilization of radical 3.Any extra stabilization of the aliphatic 2,3-diazaallyl radical (4) relative to α,α-dimethylallyl amounts to no more than 4.4 kcal/mol.Finally, γ-phenyl conjugation of the α,α-dimethylallyl radical stabilizes it by 4.5 kcal/mol.
