Complex catalyzed hydrogenation and carbon–carbon bond formation in aqueous micelles

Self‐Assembled Nanoreactors

“…141,142 This enhancement is only observed when the concentration of the surfactant is above its CMC. 143 Water-soluble rhodium complexes containing glucose-based phosphino ligands (63, 64, Chart 2) proved to be effective catalysts in the asymmetric hydrogenation of various enamides and itaconic acid in water in the presence of SDS. The use of SDS significantly improved the enantioselectivity, which was suggested to be a consequence of micelle formation.…”

Catalyzed Reactions of Alkynes in Water

“…Kang et al have found that iodonium salts can readily undergo the carbonylative coupling with terminal alkynes in the presence of Pd/Cu catalysts and 1 atmosphere pressure of carbon monoxide in aqueous media at room temperature, generating the expected a,b-acetylenic ketone products [Eq. (19)]. [68] In the cases of terminal arylalkynes as substrates, a palladium or copper catalyst alone was also effective.…”

Palladium nanoparticles stabilized in block-copolymer micelles for highly selective 2-butyne-1,4-diol partial hydrogenation

“…The application of micelles in catalysis is described in the scientific literature [12][13][14][15][16]. This approach [12] allows separation by ultrafiltration [13] or by pressure/temperature variation when supercritical CO 2 is used as a reaction media [14].…”

“…This approach [12] allows separation by ultrafiltration [13] or by pressure/temperature variation when supercritical CO 2 is used as a reaction media [14]. The surfactant usually has a catalytically active group or solubilizes a homogeneous catalyst [1,15,17].…”