Indirect electrochemical oxidation of cyclic ketones: Strong influence of ring size on the result of the reaction
作者:Fructuoso Barba、Michail N Elinson、José Escudero、Sergey K Feducovich
DOI:10.1016/0040-4039(96)01177-x
日期:1996.8
indirect electrochemical oxidation of cyclic ketones in methanol in the undivided cell in the presence of sodium iodide depends on the ring size. Cyclopentanone affords 2,2-dimethoxycyclopentanone. While cyclohexanone gives rise 2,2-dimethoxycyclo-hexanol, and cyclic ketones with higher ring size undergo new type of the electrochemically induced Favorskiirearrangement with the formation of methyl cycloalkencarboxylates
The alpha-hydroxylation of ketones and aldehydes to alpha-hydroxyketals mediated by iodine under basic conditions in MeOH is described. Enolates generated under the reaction conditions are iodinated and the resulting alpha-iodocarbonyl is transformed into the hydroxyketal. The use of iodine for this chemistry represents an economical and practical alternative to existing methods for this transformation. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis and stereochemistry of 2,5-dimethoxy 3,6-disubstituted 1,4-dioxanes obtained from .alpha.-hydroxy dimethyl acetals
作者:Robert M. Moriarty、Kwang Chung Hou
DOI:10.1021/jo00198a002
日期:1984.11
MORIARTY, R. M.;HOU, KWANG-CHUNG, TETRAHEDRON LETT., 1984, 25, N 7, 691-694
作者:MORIARTY, R. M.、HOU, KWANG-CHUNG
DOI:——
日期:——
MORIARTY, R. M.;HOU, KWANG-CHUNG, J. ORG. CHEM., 1984, 49, N 24, 4581-4583