1206-21-9Relevant articles and documents
Building Congested Ketone: Substituted Hantzsch Ester and Nitrile as Alkylation Reagents in Photoredox Catalysis
Chen, Wenxin,Liu, Zheng,Tian, Jiaqi,Li, Jin,Ma, Jing,Cheng, Xu,Li, Guigen
supporting information, p. 12312 - 12315 (2016/10/07)
For the first time, 4-alkyl Hantzsch esters were used to construct molecules with all-carbon quaternary centers by visible light-induced photoredox catalysis via transfer alkylation. Up to a 1500 h-1 turnover frequency was achieved in this reaction. Reactions of 4-alkyl Hantzsch nitriles as tertiary radical donors joined two contiguous all-carbon quaternary centers intermolecularly, and this chemistry was used to synthesize a common precursor of a class of hydroxysteroid dehydrogenase inhibitors.
Regioselective monoalkylation of ketones via their manganese enolates: 2-benzyl-6-methylcyclohexanone from 2-methylcyclohexanone: [ cyclohexanone, 2-methyl-6-(phenylmethyl)- ]
Cahiez, Gérard,Chau, Fran?ois,Blanchot, Bernard,Yli-Kauhaluoma, Jari,Danheiser, Rick L.
, p. 239 - 239 (2017/10/06)
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Highly regioselective alkylation at the more hindered α-site of unsymmetrical ketones by use of their potassium enolates. A comparative study with lithium enolates
Quesnel, Yannick,Bidois-Sery, Laure,Poirier, Jean-Marie,Duhamel, Lucette
, p. 413 - 415 (2007/10/03)
Alkylation of regioisomeric potassium enolates 4 and 6 obtained from corresponding silyl enol ethers 2 and 3 occurs at the most substituted site affording ketones 8. Alkylation of corresponding lithium enolates 5 and 7 occurs at the expected site affording ketones 8 or 9. As an application the one pot synthesis of spiroketones 13 from silyl enol ethers 12 is described.