An ESR and UV Spectroscopic Study on the Photoreduction of para-Nitroaniline

Зеленцов, С. В.; Zelentsova, N. V.; Кузнецов, М. В.; Simdyanov, I. V.

doi:10.1023/b:hiec.0000012060.10070.13

Cited by 5 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The formation of radical products other than phenyl radicals was not observed. Moreover, as shown in [11,15], phenylcarbonyl and phenyl radicals (in toluene) and the radicals Ó-ëç 3 -ë 6 and Ó-ëç 3 -ë(é)-ë 6 (in oxylene) are the major radical products generated in the photoreduction of isomeric nitroanilines in toluene and o-xylene. It has been concluded [11,15,16] that the radical products are formed as a result of hydrogen atom abstraction from the surrounding molecules by the RNOO T species.…”

Section: Resultsmentioning

confidence: 94%

“…Moreover, as shown in [11,15], phenylcarbonyl and phenyl radicals (in toluene) and the radicals Ó-ëç 3 -ë 6 and Ó-ëç 3 -ë(é)-ë 6 (in oxylene) are the major radical products generated in the photoreduction of isomeric nitroanilines in toluene and o-xylene. It has been concluded [11,15,16] that the radical products are formed as a result of hydrogen atom abstraction from the surrounding molecules by the RNOO T species. We carried out control experiments in the presence of the spin trap in the reaction mixture during the photochemical reaction, i.e., the trap was added into the reaction mixture before the beginning of the reaction.…”

Section: Resultsmentioning

confidence: 94%

“…This becomes one of the subsequent steps, not the singlet-triplet transition. The increase in the probability of the reaction between nitroso oxide in the triplet state and hydrocarbon increases the yield of both the nitroso compound [11] and radical products.…”

Section: Resultsmentioning

confidence: 99%

“…2. Recently [11], we have studied the chemical nature of the radical products and shown that the major radical products generated in the photoreduction of pnitroaniline in benzene are phenyl radicals. The addition of ethyl bromide into the reaction system significantly increased the yield of phenyl radicals.…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

The Kinetics of Photoreduction of Isomeric Nitroanilines

2005

Self Cite

View full text Add to dashboard Cite

The kinetics of photoinduced reduction of isomeric nitroanilines and the effect of ethyl bromide as an intersystem crossing catalyst on the apparent rate constants of degradation of nitroanilines were studied. The presence of the catalyst caused deviation of the degradation kinetics of the nitroanilines from the first-order law in the substrate. The deviation was accounted for by the interaction of generated radical products with the parent nitro compound. The photoreduction of nitroanilines in benzene resulted in its hydroxylation yielding phenol. The presence of ethyl bromide increased the phenol yield.

show abstract

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

The Kinetics of Photoreduction of Isomeric Nitroanilines

2005

Self Cite

View full text Add to dashboard Cite

show abstract

“…(5) The composition of the radical products present in the reaction mixture is determined by the competition of re actions (3)- (5).…”

Section: Isc -Intersystem Crossingmentioning

confidence: 99%

interaction of nitro compounds with radicals: a quantum chemical study

Зеленцов¹,

Simdyanov²

2006

Russ Chem Bull

Self Cite

View full text Add to dashboard Cite

Photoreduction of nitro compounds is accompanied by formation of various radical prod ucts that can react with the starting nitro compound, thus causing deviation of the decomposi tion kinetics from the first order kinetics with respect to the nitro compound. The results of quantum chemical modeling of the reactions of nitro compounds with radicals and the path ways of further transformations of radical adducts formed in the reactions are presented.

show abstract