Thallium in organic synthesis. 61. Intramolecular capture of radical cations from thallium(III) trifluoroacetate oxidation of arylalkanoic acids and arylalkanols. New routes to oxygen heterocycles
Thallium in organic synthesis. 61. Intramolecular capture of radical cations from thallium(III) trifluoroacetate oxidation of arylalkanoic acids and arylalkanols. New routes to oxygen heterocycles
Convenient Catalysed Spirocyclisation of 4-(2-Carboxyethyl)Phenols
作者:Zhong-Shi Zhou、Xue-Han He
DOI:10.3184/174751917x14840718425897
日期:2017.1
stoichiometric oxidant m-chloroperbenzoic acid, the oxidative spirocyclisation of 4-(2-carboxyethyl)phenols proceeded smoothly, providing the corresponding spirodienones in good yields. In this protocol, 1-iodopropane was first oxidised to hypoiodous acid, which then facilitated the spirocyclisation of the phenols.
Organoiodine-Catalyzed Oxidative Spirocyclization of Phenols using Peracetic Acid as a Green and Economic Terminal Oxidant
作者:Yutaka Minamitsuji、Daishi Kato、Hiromichi Fujioka、Toshifumi Dohi、Yasuyuki Kita
DOI:10.1071/ch09148
日期:——
The use of peraceticacid as a green and economical terminal oxidant in fluoroalcohol solvents could provide a practical iodoarene-catalyzed oxidation of phenols to give spirodienones. Acetic acid and water were the only co-products and waste, and thus this catalytic approach utilizing fluoroalcohol media could simplify the reaction workup procedure for product isolation.
TAYLOR, E. C.;ANDRADE, J. G.;RALL, G. J. H.;TURCHI, I. J.;STELIOU, K.;JAG+, J. AMER. CHEM. SOC., 1981, 103, N 23, 6856-6863
作者:TAYLOR, E. C.、ANDRADE, J. G.、RALL, G. J. H.、TURCHI, I. J.、STELIOU, K.、JAG+
DOI:——
日期:——
Thallium in organic synthesis. 61. Intramolecular capture of radical cations from thallium(III) trifluoroacetate oxidation of arylalkanoic acids and arylalkanols. New routes to oxygen heterocycles
作者:Edward C. Taylor、Juan G. Andrade、Gerhardus J. H. Rall、Ignatius J. Turchi、Kosta Steliou、G. Erik Jagdmann、Alexander McKillop