• Thumbnail for Ketyl
    A ketyl group in organic chemistry is an anion radical that contains a group R2C−O•. It is the product of the 1-electron reduction of a ketone. Another...
    3 KB (303 words) - 12:34, 9 May 2024
  • Thumbnail for Benzophenone
    will abstract a hydrogen atom from a suitable hydrogen donor to form a ketyl radical. Alkali metals reduce benzophenone to the deeply blue colored radical...
    16 KB (1,444 words) - 04:45, 27 May 2024
  • carbon atom to the oxygen atom. The R radical then recombines with the ketyl. The alkyl group migrates in the order of thermodynamical stability methyl...
    4 KB (361 words) - 18:59, 23 January 2024
  • Thumbnail for Annulation
    alkene cyclization of 5-methylenecyclooctanone which proceeds through a ketyl intermediate: The term benzannulated compounds refers to derivatives of...
    4 KB (335 words) - 19:27, 30 January 2024
  • Thumbnail for Desiccant
    produce dry, oxygen-free toluene. The toluene is dry and oxygen free when the intense blue coloration from the benzophenone ketyl radical is observed....
    9 KB (993 words) - 12:09, 13 July 2024
  • Thumbnail for Paper
    (2005). "Generation and Reactivity of Ketyl Radicals with Lignin Related Structures. On the Importance of the Ketyl Pathway in the Photoyellowing of Lignin...
    43 KB (4,692 words) - 01:14, 18 May 2024
  • reduction of the solute, the dissolved oxygen is almost totally eliminated. The ketyl radical from sodium and benzophenone can also be used for removing both...
    9 KB (1,108 words) - 23:28, 31 August 2023
  • Thumbnail for Solvent
    Kentaro; Mori, Atsunori (31 October 2018). "Revisiting of Benzophenone Ketyl Still: Use of a Sodium Dispersion for the Preparation of Anhydrous Solvents"...
    44 KB (3,609 words) - 23:47, 14 June 2024
  • Thumbnail for Grignard reaction
    electron transfer (SET) mechanism that involves the initial formation of a ketyl radical intermediate has also been proposed. A recent computational study...
    12 KB (1,099 words) - 07:52, 17 April 2024
  • believed to responsible for reducing Au3+ to Au0 is the Norrish generated ketyl radical. Leo Paquette's 1982 synthesis of dodecahedrane involves three separate...
    9 KB (1,067 words) - 09:03, 10 May 2024
  • carbonyl group by a reducing agent —such as magnesium— to a ketyl radical anion species. Two ketyl groups react in a coupling reaction yielding a vicinal diol...
    8 KB (891 words) - 19:54, 11 March 2024
  • Thumbnail for Hexamethylphosphoramide
    diiodide and as a Lewis base additive to many reactions involving samarium ketyls. HMPA is only mildly toxic but has been shown to cause cancer in rats. HMPA...
    9 KB (781 words) - 13:25, 17 July 2024
  • Thumbnail for Semidione
    R−C(−O−)=C(−O•)−R', making them the second member of a homologous series starting with ketyl radicals. They are often transient intermediates, appearing in reactions...
    3 KB (232 words) - 16:09, 19 November 2023
  • Thumbnail for Radical (chemistry)
    delocalized. Examples include alkali metal naphthenides, anthracenides, and ketyls. Hydrogen abstraction generates radicals. To achieve this reaction, the...
    40 KB (4,592 words) - 12:22, 15 July 2024
  • such reagent is benzophenone ketyl, which is easily generated by this reaction Na + Ph2CO → Na+Ph2CO•− This deep purple ketyl rapidly gives colorless products...
    16 KB (1,929 words) - 00:55, 2 April 2024
  • Thumbnail for Schlenk line
    große Klasse von Verbindungen mit dreiwertigem Kohlenstoff. II" [On metal ketyls, a large class of compounds with trivalent carbon. II.]. Berichte der Deutschen...
    11 KB (1,311 words) - 16:46, 27 June 2024
  • Thumbnail for Dimanganese decacarbonyl
    reduction of anhydrous manganese(II) chloride with sodium benzophenone ketyl radical under similarly high pressures (200 atm) of CO. This method yielded...
    43 KB (4,524 words) - 08:36, 12 July 2024
  • Thumbnail for Ribonucleotide reductase
    there is a hydrogen atom transfer from Cys225 to carbon C-2’ of the 2’-ketyl radical 3, after previous proton transfer from Cys462 to Cys225. At the...
    34 KB (3,500 words) - 20:48, 18 July 2024
  • Thumbnail for Reductions with samarium(II) iodide
    similar one-electron reducing agents. Upon single-electron transfer, a ketyl dimer iv forms. In the absence of protic solvent, this dimer collapses to...
    17 KB (1,965 words) - 08:45, 20 June 2024
  • Thumbnail for Disodium tetracarbonylferrate
    amalgam. Modern synthesis use sodium naphthalene or sodium benzophenone ketyls as the reducants: Fe(CO)5 + 2 Na → Na2[Fe(CO)4] + CO When a deficiency of...
    8 KB (655 words) - 10:33, 2 July 2024
  • radical. This radical attacks the carbonyl group to an intermediate bicyclic ketyl. This intermediate then rearranges with ring expansion to a new carbon radical...
    4 KB (426 words) - 13:55, 20 June 2023
  • Synthesis of (−)-Steganone Utilizing a Samarium(II) Iodide Promoted 8-Endo Ketyl−Olefin Cyclization". J. Am. Chem. Soc. 122: 52. doi:10.1021/ja9930059. Sellmann...
    4 KB (443 words) - 22:52, 31 August 2023
  • donor was the benzophenone triplet and the acceptor was the benzophenone ketyl radical. Since moving to Trondheim in 1977, Naqvi has worked on a wide range...
    8 KB (698 words) - 20:03, 12 October 2023
  • Thumbnail for Hans-Ulrich Reissig
    Beemelmanns, Christine; Reissig, Hans-Ulrich (2011). "Samarium diiodide induced ketyl-(het)arene cyclisations towards novel N-heterocycles". Chemical Society...
    7 KB (642 words) - 22:07, 6 October 2023
  • (2017). "Enantioselective cyclizations and cyclization cascades of samarium ketyl radicals". Nature Chemistry. 9 (12): 1198–1204. Bibcode:2017NatCh...9.1198K...
    12 KB (976 words) - 04:39, 6 January 2024
  • Thumbnail for Ernst Otto Beckmann
    benzophenone react in dry ether to produce a blue solution, now known to be due to ketyl-radical formation. This reactions remains a standard one among chemists...
    10 KB (1,123 words) - 22:45, 3 July 2024
  • Missouri. Her Ph.D. dissertation focused on reactions involving sodium ketyls. While working towards her master's degree in chemistry, Harrison taught...
    11 KB (966 words) - 09:41, 7 April 2024