scholarly journals Direct Kinetics and Product Measurement of Phenyl Radical + Ethylene

2020 ◽  
Vol 124 (12) ◽  
pp. 2352-2365 ◽  
Author(s):  
Te-Chun Chu ◽  
Zachary J. Buras ◽  
Brook Eyob ◽  
Mica C. Smith ◽  
Mengjie Liu ◽  
...  
Keyword(s):  
Phenyl Radical

Effects of Ultrasounds on Neat nitrobenzene

2019 ◽  
Vol 70 (8) ◽  
pp. 3085-3088
Author(s):  
Carmen Eugenia Stavarache ◽  
Yasuaki Maeda ◽  
Mircea Vinatoru
Keyword(s):  
Nitro Group ◽  
Radical Cation ◽  
Reaction Mechanisms ◽  
Diphenyl Ether ◽  
Argon Atmosphere ◽  
Phenyl Radical ◽  
Dissolved Gas ◽  
Decomposition Products ◽  
Oxygenated Compounds ◽  
Phenyl Cation

Neat nitrobenzene was continuously irradiated at two ultrasonic frequencies: 40 and 200 kHz, under air and argon atmosphere, respectively. Samples taken at intervals of 1, 5, 10 and 24 h were analyzed by GC-MS and decomposition products were identified. Possible reaction mechanisms are discussed. Presence of air as dissolved gas leads to oxygenated compounds such as 1,4-benzoquinone, 2,4-dinitrophenol, m-dinitrobenzene while argon inhibits the decomposition of nitrobenzene, especially at sonication times under 5 h. Based on the nature of the compounds identified we advanced a mechanism, involving a divergent splitting of unstable radical cation of NB in air and argon respectively. Thus, under air, the phenyl cation formation is preferred leading to 1,4-benzoquinone nitro-biphenyls and dinitrobenzene, while under argon, the phenyl radical formation seems to be favored, leading to phenol and diphenyl ether. The oxygenated compounds detected under argon clearly are a consequence of the nitro group splitting.

Simulation of the complete mechanism of oxidation of phenyl radical under combustion conditions

2020 ◽  
Author(s):  
I. A. Medvedkov ◽  
G. I. Tolstov ◽  
D. P. Porfiriev ◽  
M. V. Zagidullin ◽  
A. M. Mebel ◽  
...  
Keyword(s):  
Phenyl Radical ◽  
Mechanism Of Oxidation

Reactivities of monomers towards the phenyl radical

1968 ◽  
Vol 64 ◽  
pp. 1329 ◽  
Author(s):  
J. C. Bevington ◽  
T. Ito
Keyword(s):  
Phenyl Radical

Experimental and Computational Studies of the Phenyl Radical Reaction with Allene†

2007 ◽  
Vol 111 (29) ◽  
pp. 6881-6889 ◽  
Author(s):  
J. Park ◽  
I. V. Tokmakov ◽  
M. C. Lin
Keyword(s):  
Radical Reaction ◽  
Computational Studies ◽  
Phenyl Radical

Crossed Molecular Beams Studies of Phenyl Radical Reactions with Propene and trans-2-Butene

2013 ◽  
Vol 117 (51) ◽  
pp. 13967-13975 ◽  
Author(s):  
Daniel R. Albert ◽  
Michael A. Todt ◽  
H. Floyd Davis
Keyword(s):  
Molecular Beams ◽  
Radical Reactions ◽  
Phenyl Radical ◽  
Crossed Molecular Beams

STUDIES IN URETHANES: VII REACTIONS OF ACYL DIURETHANES WITH AMMONIA AND PRIMARY AMINES. STABILIZING EFFECT OF THE PHENYL RADICAL IN PHENYLMALONYL- AND PHENYLSUCCINYL-DIURETHANE

1942 ◽  
Vol 20b (11) ◽  
pp. 240-245
Author(s):  
S. Basterfield ◽  
A. J. Dyck
Keyword(s):  
Oxalic Acid ◽  
Primary Amines ◽  
Phenyl Radical ◽  
Acyl Radical ◽  
Definite Evidence ◽  
Rapid Decomposition ◽  
Mechanism Of Decomposition ◽  
Stabilizing Effect ◽  
The One

In previous studies it has been shown that the mechanism of decomposition of acyl diurethanes by ammonia and amines is correlated to some extent with the strength of the acid from which the acyl radical is derived and of the base used as ammonolytic reagent. In the oxalic acid series a diurea was obtained from succinyl-diurethane and aniline, but not from oxalyl- or malonyl-diurethane. Succinyl-diurethane gave no diurea with stronger bases.It is shown in the present study that phenylmalonyl-diurethane yields with aniline a diurea which undergoes rapid decomposition on being heated with aniline at 150 °C. Phenylsuccinyl-diurethane gives with aniline a diurea that is much more stable than the one obtained from succinyl-diurethane, as judged by the rate of decomposition on heating with aniline at 150°. No definite evidence of diurea formation was obtained with bases stronger than aniline.

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