Add time:08/26/2019 Source:sciencedirect.com
Hydroformylation of 1-Dodecene (cas 112-41-4) catalyzed by water-soluble rhodium-phosphine complex, RhCl(CO)(TPPTS)2 (TPPTS: P(m-C6H4SO3Na)), in the presence of various mixed micelles was investigated. When either an anionic surfactant sodium dodecyl sulfate (SDS) or dodecylbenzonesulphonate (DBS), a nonionic surfactant Triton X-100 or Brij 35, or alcohol was added into cationic surfactant cetyl pyrindium bromide (CPB) solution, a mixed micelle formed. The decrease in critical micelle concentration (CMC) and the increase in solubilization of 1-dodecene in the mixed micelle were observed. Hydroformylation of 1-dodecene exhibited higher conversion and higher regioselectivity in the mixed micellar solution than in the single micelle of CPB. The synergistic mechanism of two different surfactants was discussed.
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