caa a22 4500 467888361 CHVBK 20180406152741.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s11144-006-0102-7 doi (NATIONALLICENCE)springer-10.1007/s11144-006-0102-7 Kinetics and mechanism of the oxygenation of potassium nitronates. Evidence for a single electron transfer (SET) mechanism [Elektronische Daten] [József Kaizer, Norbert Durkó, Miklós Czaun, Gábor Speier] Summary: The oxygenation of the potassium salts of alkylnitronates in absolute DMSO leads to potassium nitrite (nitrate) and the corresponding aldehydes or ketones at 40°C. Kinetic measurements for potassium 1-propylnitronate (K-1-PN) resulted in the rate law -d[K-1-PN]/dt = k2[K-1-PN][O2]. The rate constant, activation enthalpy, and entropy at 313.16 K are as follows: k/M-1 s-1 = (1.43±0.04), DH‡/kJ mol-1 = 57±10 DS‡/J mol-1 K-1 = -60±32. The presence of superoxide ion as a result of a SET from the nitronate to dioxygen was proved by NBT test. Springer-Verlag/Akadémiai Kiadó, 2006 nitroalkanes nationallicence oxygenation nationallicence SET nationallicence 2-Nitropropane dioxygenase nationallicence kinetics nationallicence Kaizer József Research Group for Petrochemistry, Hungarian Academy of Sciences, 8201 Veszprém, Hungary aut Durkó Norbert Department of Organic Chemistry, University of Veszprém, 8201 Veszprém, Hungary aut Czaun Miklós Department of Organic Chemistry, University of Veszprém, 8201 Veszprém, Hungary aut Speier Gábor Research Group for Petrochemistry, Hungarian Academy of Sciences Department of Organic Chemistry, University of Veszprém, 8201 Veszprém, Hungary 8201 Veszprém, Hungary aut Reaction Kinetics and Catalysis Letters Kluwer Academic Publishers 88/1(2006-06-01), 193-202 0133-1736 88:1<193 2006 88 11144 https://doi.org/10.1007/s11144-006-0102-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11144-006-0102-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kaizer József Research Group for Petrochemistry, Hungarian Academy of Sciences, 8201 Veszprém, Hungary aut NATIONALLICENCE 700 1- Durkó Norbert Department of Organic Chemistry, University of Veszprém, 8201 Veszprém, Hungary aut NATIONALLICENCE 700 1- Czaun Miklós Department of Organic Chemistry, University of Veszprém, 8201 Veszprém, Hungary aut NATIONALLICENCE 700 1- Speier Gábor Research Group for Petrochemistry, Hungarian Academy of Sciences Department of Organic Chemistry, University of Veszprém, 8201 Veszprém, Hungary 8201 Veszprém, Hungary aut NATIONALLICENCE 773 0- Reaction Kinetics and Catalysis Letters Kluwer Academic Publishers 88/1(2006-06-01), 193-202 0133-1736 88:1<193 2006 88 11144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer