Understanding the radical mechanism of lipoxygenases using 31P NMR spin trapping

2011 ◽  
Vol 19 (9) ◽  
pp. 3022-3028 ◽  
Author(s):  
Luca Zoia ◽  
Raffaella Perazzini ◽  
Claudia Crestini ◽  
Dimitris S. Argyropoulos
Keyword(s):  
31P Nmr ◽  
Spin Trapping ◽  
Radical Mechanism

Direct Evidence of a Radical Mechanism in the Addition Reaction of Iododifluoroesters to Olefins by Spin Trapping

2000 ◽  
Vol 65 (17) ◽  
pp. 5098-5103 ◽  
Author(s):  
Luis Julià ◽  
M. Pilar Bosch ◽  
Sergio Rodriguez ◽  
Angel Guerrero
Keyword(s):  
Direct Evidence ◽  
Addition Reaction ◽  
Spin Trapping ◽  
Radical Mechanism

Detection of ketyl radicals using 31P NMR spin trapping

2009 ◽  
Vol 23 (6) ◽  
pp. 505-512 ◽  
Author(s):  
Luca Zoia ◽  
Dimitris S. Argyropoulos
Keyword(s):  
31P Nmr ◽  
Spin Trapping

Synthetic applications of α-hydroxydiazenes. III. Uncatalyzed and phenol catalyzed hydroalkylation of alkenes and of azobenzene with alkylazodiphenylmethanols

1980 ◽  
Vol 58 (22) ◽  
pp. 2386-2393 ◽  
Author(s):  
Dominic W. K. Yeung ◽  
John Warkentin
Keyword(s):  
Double Bond ◽  
Spin Trapping ◽  
Radical Mechanism ◽  
Chain Reaction ◽  
Radical Chain ◽  
Radical Intermediates ◽  
Radical Chain Reaction

Alkylazodiphenylmethanols (C6H5)2C(OH)N = NR, (R = CH(CH3)2, CH2CH3, CH3), when decomposed in the presence of olefinic substrates or in the presence of azobenzene, hydroalkylate those substrates. Addition of R and H across the double bond of an unsymmetric alkene occurs with the regiochemistry expected for a radical mechanism, in which the group R adds first. Radical intermediates from decomposition of alkylazodiphenylmethanols have been demonstrated earlier with spin trapping experiments. The fact that addition of phenol can enhance the yield of hydroalkylation product suggests that the process is a radical chain reaction, with chain carrying steps consisting of the reactions:[Formula: see text]One deuterioalkylation and some yield-optimizing experiments are also reported.

Mononucleotides 31P NMR relaxation measurement

1983 ◽  
Vol 80 ◽  
pp. 831-832 ◽  
Author(s):  
A.M. Avedikian ◽  
D. Besserre ◽  
M. Delepierre
Keyword(s):  
31P Nmr ◽  
Nmr Relaxation ◽  
Relaxation Measurement
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