Selective Metal‐Catalyzed Transfer of H₂ and CO from Polyols to Alkenes

Abstract

Selective, metal-catalyzed transfer of H2 and CO from polyols to alkenes.

Ruthenium-catalysed alkoxycarbonylation of alkenes with carbon dioxide

“…So far, all used carbon monoxide surrogates have significant drawbacks with respect to atom efficiency and/or price. For example, aldehydes 13 and higher alcohols like cinnamyl alcohol 14 or polyols 15 were used as carbon monoxide source especially in hydroformylation and Pauson-Khand-type reactions. For alkoxycarbonylation reactions, formates are known to be a CO substitute 16 .…”

Life cycle assessment of novel supercritical methyl propionate process with carbon dioxide feedstock

“…For the same reasons, also bulk transportation of carbon monoxide is a critical issue. 7 Although various other sources of carbon monoxide have been investigated, [8][9][10][11][12] these were found to be either too costly or too inefficient as a feasible alternative. Carbon dioxide (CO 2 ) while potentially a very interesting alternative that is freely available, is also difficult to activate due to its high thermodynamic stability.…”

Transition Metal-Catalyzed Carboxylation of Organic Substrates with Carbon Dioxide

“…Due to safety concerns and environmental issues for the use of CO gas as chemical reagent, this approach is highly desirable. Moreover, with respect to atom efficiency and cost, CO 2 is a highly attractive alternative source of CO compared to other reagents which have been used for this purpose such as aldehydes [74], cinnamyl alcohol [75], and other higher alcohols [76]. Rhodium Leitner and co-workers have recently reported the hydrocarboxylation of olefins by H 2 and CO 2 catalyzed by a system consisting of [Rh(μ-Cl)(CO) 2 ] 2 (2.5 mol%) and excess of PPh 3 ligand (25 mol%) in AcOH as solvent (Fig.…”