Cyclic carbopalladation. a versatile synthetic methodology for the construction of cyclic organic compounds

Reducing oxygen content in biomass-derived feedstocks via hydrodeoxygenation (HDO) is a key step in their upgrading to fuels and valuable chemicals. Organic molecules, e.g., alcohols and formic acid, can donate hydrogen to reduce the substrate in a process called catalytic transfer hydrogenation (CTH). Although it is practiced far less frequently than molecular-hydrogen-based HDO processes, CTH has been proven to be an efficient and selective strategy in biomass upgrading in the last two decades. In this paper, we present a selective review of recent progress made in the upgrade of biomass-derived feedstocks through heterogeneous CTH, with a focus on the mechanistic interpretation. Hydrogenation and cleavage of C═O and C–O bonds, respectively, are the two main categories of reactions discussed, owing to their importance in the HDO of biomass-derived feedstocks. On acid–base catalysts, Lewis acid–base pair sites, rather than a single acid or base site, mediate hydrogenation of carbonyl groups with alcohols...

Heterogeneous Catalytic Transfer Hydrogenation as an Effective Pathway in Biomass Upgrading

Room-temperature alkyl-alkyl Suzuki cross-coupling of alkyl bromides that possess beta hydrogens.

Organopalladium intermediates in organic synthesis

New general synthetic methods involving π-allylpalladium complexes as intermediates and neutral reaction conditions

Palladium catalyzed reductions of halo- and nitroaromatic compounds with triethylammonium formate

Palladium-catalyzed reductions of .alpha.,.beta.-unsaturated carbonyl compounds, conjugated dienes, and acetylenes with trialkylammonium formates

Bei der reduktiven Dimerisierung von Isopren (I) mit Ameisensaure/Triathylamin in Gegenwart von Pd-Katalysatoren entstehen unterschiedliche Anteile an den dimerisierten Dienen (II)-(V), deren Anteile in zahlreichen tabellarisch wiedergegebenen Versuchen aufgezeigt bzw. auch optimiert werden.

Monoterpene Syntheses via a Palladium Catalyzed Isoprene Dimerization

Palladium-catalyzed vinylation of conjugated dienes

Sceletium alkaloids. Part 10. Synthesis of 1-substituted cis-bicyclo[4.2.0]octanones through [2+2] cycloadditions of dichloroketene to alkenes. Structural characterization of cycloadducts by oxa-ring expansion

Nicholas A. Cortese

Papers

Palladium catalyzed reductions of halo- and nitroaromatic compounds with triethylammonium formate

Palladium-catalyzed reductions of .alpha.,.beta.-unsaturated carbonyl compounds, conjugated dienes, and acetylenes with trialkylammonium formates

Monoterpene Syntheses via a Palladium Catalyzed Isoprene Dimerization

Palladium-catalyzed vinylation of conjugated dienes

Sceletium alkaloids. Part 10. Synthesis of 1-substituted cis-bicyclo[4.2.0]octanones through [2+2] cycloadditions of dichloroketene to alkenes. Structural characterization of cycloadducts by oxa-ring expansion