The functionalization of saturated hydrocarbons. Part 24. The use of tert-butyl hydroperoxide: GoAggIV and GoAggV.
作者:Derek H.R. Barton、Warinthorn Chavasiri
DOI:10.1016/s0040-4020(01)80734-1
日期:1994.4
The use of tert-butyl hydroperoxide as an oxidant in Gif-type systems (GoAggIV and GoAgfV) catalyzed by various Fe(III) species is examined. Regioselectivity studids of these systems have revealed several characteristics similar to those observed for other prdviously reported Gif-type reactions. A common rdaction pathway for the GoAggIV and GoAggV oxidation systems and other Gif-type reactions (from
Cobalt-Nanoparticles Catalyzed Efficient and Selective Hydrogenation of Aromatic Hydrocarbons
作者:Kathiravan Murugesan、Thirusangumurugan Senthamarai、Ahmad S. Alshammari、Rashid M. Altamimi、Carsten Kreyenschulte、Marga-Martina Pohl、Henrik Lund、Rajenahally V. Jagadeesh、Matthias Beller
DOI:10.1021/acscatal.9b02193
日期:2019.9.6
catalysts for such reactions. The specific nanoparticles were prepared by assembling cobalt-pyromellitic acid-piperazine coordination polymer on commercial silica and subsequent pyrolysis. Applying the optimal nanocatalyst, industrial bulk, substituted, and functionalized arenes as well as polycyclic aromatic hydrocarbons are selectively hydrogenated to obtain cyclohexane-based compounds under industrially
A trans-selective arene hydrogenation of abundant phenolderivatives catalyzed by a commercially available heterogeneous palladium catalyst is reported. The described method tolerates a variety of functional groups and provides access to a broad scope of trans-configurated cyclohexanols as potential building blocks for life sciences and beyond in a one-step procedure. The transformation is strategically
Highly regio- and stereoselective reductions of carbonyl compounds in aqueous glycosidic media
作者:Cécile Denis、Benoît Laignel、Daniel Plusquellec、Jean-Yves Le Marouille、Alain Botrel
DOI:10.1016/0040-4039(95)02094-2
日期:1996.1
Highly regioselective reductions of α,β-unsaturated ketones to the corresponding allylic alcohols were performed in essentially quantitative yields in aqueous media containing either glycosidic surfactants or amphiphilic carbohydrates. Reductions of cyclohexanones and cyclohexenones lead under the same conditions, stereoselectively to reduced compounds bearing an equatorial alcohol function. Hydrophobic