A new, effective catalytic system for epoxidation of olefins by hydrogen peroxide under phase-transfer conditions

[omega]-Hydroxylation of Oleic Acid in Vicia sativa Microsomes (Inhibition by Substrate Analogs and Inactivation by Terminal Acetylenes)

“…The experimental procedure is very close to phase transfer epoxidation by hydrogen peroxide described by Venturello et al (1983). Tlhe epoxidation was performed on a 0.5-mmol 17-ODCYA sc,ale, the phase transfer catalyst was Adiogen 464, and the reaction time was 2 h. Yield was up to 79'%,…”

Influence of peroxometallic intermediaries present on polyoxometalates nanoparticles surface on the adipic acid synthesis

“…Therefore, as already mentioned above, the use of an effective catalyst under a biphasic medium is needed. Under these experimental conditions, it is worth mentioning the peroxotungstate catalysts developed by Venturello et al [6], for which a high efficiency towards alkenes epoxidation with hydrogen peroxide, under a liquid biphasic system assisted with PTCs, has been reported [7]. Following these results, several polyoxometalates have been used as effective catalysts for homogeneous peroxidation with hydrogen peroxide [8,9,10].…”

Influence of composition of heteropolyphosphatotungstate catalyst on epoxidation of propylene

“…In 1983, Venturello et al [1,2] proposed that the complex consisting of tungstate and phosphate can catalyze the epoxidation of different alkenes with dilute H 2 O 2 solution (15%) as oxidant. In 1988, Ishii et al [3] proposed that the system composed of H 3 PW 12 O 40 and cetylpyridinium chloride can catalyze epoxidation of alkenes with commercially available H 2 O 2 solution as oxidant.…”