Hypervalent iodine oxidation: α-Functionalization of β-dicarbonyl compounds using iodosobenzene
作者:Robert M. Moriarty、Radhe K. Vaid、Vasulinga T. Ravikumar、Beena K. Vaid、Thomas E. Hopkins
DOI:10.1016/s0040-4020(01)86720-x
日期:1988.1
Hypervalent iodine oxidation of β-diketones and β-ketoesters with iodosobenzene-boron trifluoride etherate in chloroform using appropriate nucleophiles results In α-functionalization. Benzoylacetone on reaction with iodosobenzene or iodosobenzene boron trifluoride-etherate in methanol yields α-methoxyacetophenone () and methyl phenylacetate (). The possible mechanisms for these reactions are discussed
<i>m</i>-Iodosylbenzoic Acid: Recyclable Hypervalent Iodine Reagent for <font>α</font>-Tosyloxylation and <font>α</font>-Mesyloxylation of Ketones
作者:Mekhman S. Yusubov、Tatyana V. Funk、Roza Y. Yusubova、Galina Zholobova、Andreas Kirschning、Joo Yeon Park、Ki-Whan Chi
DOI:10.1080/00397910902838870
日期:2009.10.12
m-Iodosylbenzoic acid-mediated reactions of various carbonyl compounds provided -organosulfonyloxy carbonyl compounds in good yields. The final products could be easily isolated without any chromatographic purification by simple treatment of the crude mixture with an anionic exchange resin.
MORIARTY, ROBERT M.;VAID, RADHE K.;RAVIKUMAR, VASULINGA T.;VAID, BEENA K.+, TETRAHEDRON, 44,(1988) N 6, 1603-1607
作者:MORIARTY, ROBERT M.、VAID, RADHE K.、RAVIKUMAR, VASULINGA T.、VAID, BEENA K.+
DOI:——
日期:——
A New Application of Hypervalent Iodine (λ<sup>5</sup>) Reagents with Organosulfonic Acids for Direct α-Organosulfonyloxylation Carbonyl Compounds
作者:Krishnacharya Akamanchi、Ulhas Mahajan
DOI:10.1055/s-2008-1072508
日期:——
Hypervalent iodine (λ 5 ) reagents in combination with P-toluenesulfonic acid when reacted with ketones under reflux temperature in acetonitrile gave α-tosyloxy ketones in moderate to excellent yields. The reaction was developed further for both ketones and dicarbonyl compounds using Dess-Martin periodinane reagent in combination with P-toluenesulfonic acid and methanesulfonic acid, to give mono-α-tosyloxy