The Barton–McCombie Deoxygenation Reaction Using Tributyltin Hydride or Other Metal Hydrides as the Hydrogen-Atom Source

2009 ◽  
pp. 1
Author(s):  
J. Wicha
Keyword(s):  
Hydrogen Atom ◽  
Metal Hydrides ◽  
Tributyltin Hydride ◽  
Atom Source

ChemInform Abstract: Radical Deoxygenation and Dehalogenations with Dialkyl Phosphites as Hydrogen Atom Source.

ChemInform ◽  
2010 ◽  
Vol 23 (43) ◽  
pp. no-no
Author(s):  
D. H. R. BARTON ◽  
D. O. JANG ◽  
J. C. JASZBERENYI
Keyword(s):  
Hydrogen Atom ◽  
Dialkyl Phosphites ◽  
Atom Source

Hydrogen Atom Transfer Rates from Tp-Containing Metal Hydrides to Trityl Radicals

2020 ◽  
Author(s):  
Hunter B. Vibbert ◽  
Hagen Neugebauer ◽  
Jack R Norton ◽  
Andreas Hansen ◽  
Markus Bursch ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Rate Constants ◽  
Transfer Rate ◽  
Metal Hydrides ◽  
Hydrogen Atom Transfer ◽  
Transfer Reactions ◽  
Atom Transfer ◽  
Transfer Rates ◽  
Borate Complexes ◽  
And Tungsten

The H• transfer rate constants for a series of group 6 molybdenum and tungsten pyrazolyl borate complexes are described. The rate constants for these complexes were found to span a range over 1 magnitude. Analysis of the H• transfer rate constants suggests that a combination of steric, electronic, and enthalpic factors are important in these reactions. Further analysis of the components suggests that the generated 17 e– radicals of these complexes are less electrophilic than the more commonly used CpCr(CO)3H complexes. General implications for H• transfer reactions are discussed.

Photolysis of Formaldehyde as a Hydrogen Atom Source in the Lower Atmosphere

Science ◽  
1972 ◽  
Vol 175 (4023) ◽  
pp. 751-752 ◽  
Author(s):  
J. G. Calvert ◽  
J. A. Kerr ◽  
K. L. Demerjian ◽  
R. D. McQuigg
Keyword(s):  
Hydrogen Atom ◽  
Lower Atmosphere ◽  
Atom Source

Water: The Ideal Hydrogen-Atom Source in Free-Radical Chemistry Mediated by TiIII and Other Single-Electron-Transfer Metals?

2007 ◽  
Vol 46 (12) ◽  
pp. 1941-1941 ◽  
Author(s):  
Juan M. Cuerva ◽  
Araceli G. Campaña ◽  
José Justicia ◽  
Antonio Rosales ◽  
Juan L. Oller-López ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Free Radical ◽  
Hydrogen Atom ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Radical Chemistry ◽  
Atom Source ◽  
Free Radical Chemistry ◽  
The Ideal

scholarly journals Water: The Ideal Hydrogen-Atom Source in Free-Radical Chemistry Mediated by TiIII and Other Single-Electron-Transfer Metals?

2007 ◽  
Vol 119 (12) ◽  
pp. 1985-1985
Author(s):  
Juan M. Cuerva ◽  
Araceli G. Campaña ◽  
José Justicia ◽  
Antonio Rosales ◽  
Juan L. Oller-López ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Free Radical ◽  
Hydrogen Atom ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Radical Chemistry ◽  
Atom Source ◽  
Free Radical Chemistry ◽  
The Ideal

Substituent effects on the stability and reactivity of norbornenyl and nortricyclyl radicals

1975 ◽  
Vol 28 (3) ◽  
pp. 639 ◽  
Author(s):  
TG Burrows ◽  
WR Jackson
Keyword(s):  
Hydrogen Atom ◽  
Substituent Effects ◽  
Starting Material ◽  
Hydrogen Atom Abstraction ◽  
Thioacetic Acid ◽  
Tributyltin Hydride ◽  
Hydride Reduction ◽  
The Stability

The products of addition of thioacetic acid to norbornadiene, and of tributyltin hydride and triphenyltin hydride reduction of exo-2-bromo- anti-7-thioacetoxynorborn-5-ene (7), and trans-5-bromo-3- thioacetoxynortricyclene (8), have been examined. In contrast to results obtained with the corresponding acetoxy compounds, the product ratios vary with the reducing reagent and the starting material and the ratio of (rate of rearrangement)/(rate of hydrogen atom abstraction) is significantly less for the thioacetoxy substituted radicals.

Deoxygenation of Alcohols Employing Water as the Hydrogen Atom Source

2005 ◽  
Vol 127 (36) ◽  
pp. 12513-12515 ◽  
Author(s):  
David A. Spiegel ◽  
Kenneth B. Wiberg ◽  
Laura N. Schacherer ◽  
Matthew R. Medeiros ◽  
John L. Wood
Keyword(s):  
Hydrogen Atom ◽  
Atom Source
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