Facile Regiocontrolled Synthesis of Trialkyl-Substituted Pyrazines
作者:Tarek Abou Elmaaty、Lyle W. Castle
DOI:10.1021/ol0523751
日期:2005.11.1
alpha-Nitro ketones can be transformed selectively into trialkyl-substituted pyrazines via reaction with a-amino ketones using octyl viologen as an electron-transfer reagent. The new synthetic method, and the optimal reaction conditions that allow for the regiochemical control, are described.
ONO, NOBORU;MIYAKE, HIDEYOSHI;KAJI, ARITSUNE, J. CHEM. SOC. CHEM. COMMUN., 1983, N 16, 875-876
作者:ONO, NOBORU、MIYAKE, HIDEYOSHI、KAJI, ARITSUNE
DOI:——
日期:——
A new synthesis of 1,5-dicarbonyl compounds under neutral conditions
作者:Noboru Ono、Hideyoshi Miyake、Aritsune Kaji
DOI:10.1039/c39830000875
日期:——
Michael addition of α-nitroketones to methyl vinyl ketone or acrylaldehyde followed by denitration with Bu3SnH affords 1,5-dicarbonylcompounds in good yields.
Chromate Oxidation of α-Nitro Alcohols to α-Nitro Ketones: Significant Improvements to a Classic Method
作者:Tarek Elmaaty、Lyle Castle
DOI:10.3390/10121458
日期:——
A series of eight alkyl and aryl α-nitroketones were prepared by the potassium dichromate oxidation of the corresponding nitro alcohols. Short reaction times allowed for the easy isolation of pure nitro ketones that are devoid of starting materials and/or other oxidation side products.