Solvent Shifts of Methyl Proton Resonances of Pinanols and Related Compounds
作者:Toshifumi Hirata
DOI:10.1246/bcsj.45.3169
日期:1972.10
shifts of methyl protons of a number of bicyclo[3.1.1]heptanols and their acetates were measured on carbon tetrachloride and benzene in order to examine the correlation between the benzene-induced shifts and the spatial arrangements of the functional groups concerned. Thus, the shifts induced by benzene were found to be useful in establishing both the location and the stereochemistry of methyl protons
Allylic Oxidation of Alkenes Catalyzed by a Copper–Aluminum Mixed Oxide
作者:Ana Leticia García-Cabeza、Rubén Marín-Barrios、F. Javier Moreno-Dorado、María J. Ortega、Guillermo M. Massanet、Francisco M. Guerra
DOI:10.1021/ol500198c
日期:2014.3.21
strategy for the allylicoxidation of cyclic alkenes with a copper–aluminum mixedoxide as catalyst is presented. The reaction involves the treatment of an alkene with a carboxylic acid employing tert-butyl hydroperoxide as the oxidant. In all cases, the corresponding allylic esters are obtained. When l-proline is employed, the allylic alcohol or ketone is obtained. The oxidation of cyclohexene and
(−)-pinocarvone oxide derived from (+)-pinocarvone into (−)-(1R:2S:3R:5R)-cis-2-hydroxypinocampheol and the conversion of (+)-pinocarvone oxide in (+)-(1R:2R:3R:5R)-trans-2-hydroxyneoisopinocampheol and (−)-(1R:2R:3R:5R)-cis-2-hydroxyisopinocampheol are described. With the knowledge of the absoluteconfigurations of these glycols, it was concluded that (−)-pinocarvone oxide and (+)-pinocarvone oxide have the