Phenyliodine diacetate-mediated oxidative cleavage of cyclobutanols leading to γ-hydroxy ketones
摘要:
Oxidative cleavage of cyclobutanols using PIDA, which leads to efficient entry of gamma-hydroxy ketones, is described. When using 2-substituted cyclobutanols, gamma-substituted gamma-hydroxy ketones are obtained through regioselective C-C bond cleavage. (C) 2010 Elsevier Ltd. All rights reserved.
Cobalt-catalyzed oxidative cyclization of gem -disubstituted conjugated alkenols
作者:Tânia M.F. Alves、Mateus O. Costa、Beatriz A.D. Bispo、Fabiana L. Pedrosa、Marco A.B. Ferreira
DOI:10.1016/j.tetlet.2016.06.064
日期:2016.7
Aryl gem-disubstituted conjugated alkenols underwent oxidativecyclization affording 2,5,5-trisubstituted tetrahydrofurans in reasonable yields and good diastereoselectivities using the reductive termination variation of the Mukaiyama aerobic oxidative reaction. Under oxidative termination, the same alkenols produced diols and ketonic by-products via the double hydration and beta-scission competing
Hydroxyarylketones via Ring-Opening of Lactones with Aryllithium Reagents: An Expedient Synthesis of (±)-Anabasamine
作者:Mark Trudell、Lei Miao、Stassi DiMaggio
DOI:10.1055/s-0029-1217047
日期:2010.1
The regioselective ring-opening of lactones (δ-valerolactone and γ-butyrolactone) with aryllithium reagents is reported for the construction of a series of δ-hydroxy aryl ketones and γ-hydroxy aryl ketones. Application of this method for the expeditious syntheses of (±)-anabasamine and its nicotine-related analogue are also described.
platforms for visible light-mediated oxidative CO2-extrusion furnishing α-hydroxy radicals proved to be versatile C1 to Cn hydroxyalkylating agents. The direct decarboxylative Giese reaction (DDGR) is operationally simple, not requiring activator or sacrificial oxidants, and enables the synthesis of a diverse range of hydroxylated products, introducing connectivity typically precluded from conventional polar