Photodissociation ofN-(Triphenylmethyl)anilines:  A Laser Flash Photolysis, ESR, and Product Analysis Study1

1998 ◽  
Vol 63 (10) ◽  
pp. 3251-3259 ◽  
Author(s):  
M. G. Siskos ◽  
A. K. Zarkadis ◽  
S. Steenken ◽  
N. Karakostas ◽  
S. K. Garas
1997 ◽  
Vol 101 (51) ◽  
pp. 9837-9845 ◽  
Author(s):  
S. C. Choure ◽  
M. M. M. Bamatraf ◽  
B. S. M. Rao ◽  
Ranjan Das ◽  
H. Mohan ◽  
...  

1999 ◽  
Vol 64 (6) ◽  
pp. 1925-1931 ◽  
Author(s):  
M. G. Siskos ◽  
A. K. Zarkadis ◽  
S. Steenken ◽  
N. Karakostas

ChemInform ◽  
2010 ◽  
Vol 29 (36) ◽  
pp. no-no
Author(s):  
M. G. SISKOS ◽  
A. K. ZARKADIS ◽  
S. STEENKEN ◽  
N. KARAKOSTAS ◽  
S. K. GARAS

2003 ◽  
Vol 81 (6) ◽  
pp. 586-597 ◽  
Author(s):  
James Morrison ◽  
Peter Wan ◽  
John ET Corrie ◽  
V Ranjit Munasinghe

The photochemistry of p-nitrobenzyl derivatives 6–10 has been studied in aqueous solution as a function of pH, using product analysis, UV–vis spectrophotometry, and laser flash photolysis (LFP). The compounds were chosen with the aim of further exploring the propensity of these systems to give rise to α-hydroxy-p-nitrobenzyl carbanions on photolysis, and to study their mechanisms of subsequent reaction. α-Hydroxy-substituted carbanions are anions that cannot be readily formed using thermal routes but which are believed to have some interesting chemistry. Three methods were employed for photogenerating these carbanions: (i) decarboxylation; (ii) retro-Aldol reaction; and (iii) carbon acid deprotonation. All three methods proved to be successful using the p-nitrobenzyl chromophore. Photogenerated α-hydroxy-p-nitrobenzyl carbanions react via disproportionation, giving rise to oxidized and reduced products; simple protonation of the anion was undetectable.Key words: photodecarboxylation, nitrobenzyl carbanions, photoredox, nitroaromatic compounds, excited-state carbon acids.


2017 ◽  
Vol 16 (5) ◽  
pp. 721-735 ◽  
Author(s):  
Luis J. A. Martins ◽  
João M. M. Ferreira

The photoreactivity of 5-nitro-2-furaldehyde in solution is ascribed to the lowest triplet state. Evidence that a furyloxyl radical yields 5-hydroxymethyl-2(5H)-furanone, and the radical anion leads to the novel product 5-imino-2(5H)-furanone in water, is presented.


2002 ◽  
Vol 76 (5) ◽  
pp. 480 ◽  
Author(s):  
Xavier Damoiseau ◽  
Francis Tfibel ◽  
Maryse Hoebeke ◽  
Marie-Pierre Fontaine-Aupart

2000 ◽  
Vol 72 (4) ◽  
pp. 451 ◽  
Author(s):  
M. Bazin ◽  
F. Bosca ◽  
M. L. Marin ◽  
M. A. Miranda ◽  
L. K. Patterson ◽  
...  

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