Fe‐Catalyzed Anaerobic Mukaiyama‐Type Hydration of Alkenes using Nitroarenes
作者:Anup Bhunia、Klaus Bergander、Constantin Gabriel Daniliuc、Armido Studer
DOI:10.1002/anie.202015740
日期:2021.4.6
Hydration of alkenes using first row transitionmetals (Fe, Co, Mn) under oxygen atmosphere (Mukaiyama‐type hydration) is highly practical for alkene functionalization in complex synthesis. Different hydration protocols have been developed, however, control of the stereoselectivity remains a challenge. Herein, highly diastereoselective Fe‐catalyzed anaerobic Markovnikov‐selective hydration of alkenes
Peroxides from Turpentine. II. Pinane Hydroperoxide<sup>2</sup>
作者:G. S. Fisher、J. S. Stinson、L. A. Goldblatt
DOI:10.1021/ja01111a021
日期:1953.8
Transition-Metal Catalyzed Autoxidation of <i>cis-</i> and <i>trans</i>-Pinane to a Mixture of Diastereoisomeric Pinanols
作者:Ricardo Sercheli、Alfredo L. B. Ferreira、Lúcia H. B. Baptistella、Ulf Schuchardt
DOI:10.1021/jf960472q
日期:1997.4.1
Autoxidations of the pinanes, obtained after hydrogenation of naturally occurring Pinus elliottii oil, were performed with or Without solvent, using the catalytic system Co(OAc)(2)/Mn(OAc)(2)/NH4Br in a 9:1:5 molar ratio, and dioxygen as the oxidant. The best selectivity for the pinanols was 71% (cis:trans ratio, 3:1) with 17% conversion. Autoxidations were also carried out in the absence of catalyst. The hydroperoxides formed with 17% conversion were decomposed with Na2SO3 and PPh3, resulting in 62% pinanols (cis:trans ratio, 5:1). The pyrolysis of the pinanols at 600 degrees C and a contact time of 1.15 x 10(-2) s/mol yielded 54% of linalool. The side products were mainly due to an ''ene'' reaction, giving diastereoisomeric 1,2-dimethyl-3-isopropenylcyclopentanols.
Vilkas; Dupont; Dulou, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1956, vol. 242, p. 1329