Journal of the American Chemical Society, 135(4), 1549-1557 (2013-01-10)
A general mechanism is proposed for transition metal-catalyzed oxidative Mannich reactions of N,N-dialkylanilines with tert-butyl hydroperoxide (TBHP) as the oxidant. The mechanism consists of a rate-determining single electron transfer (SET) that is uniform from 4-methoxy- to 4-cyano-N,N-dimethylanilines. The tert-butylperoxy radical
This work investigated the ultrasonic assisted oxidative desulfurization of bunker-C oil with TBHP/MoO3 system. The operational parameters for the desulfurization procedure such as ultrasonic irradiation time, ultrasonic wave amplitude, catalyst initial concentration and oxidation agent initial concentration were studied. The
This protocol describes a new approach for the preparation of stereodefined trisubstituted chiral enolate species, avoiding conventional asymmetric enolization of carbonyl compounds. This protocol was developed as a single-flask synthetic sequence and therefore does not require isolation or purification of
Journal of the American Chemical Society, 135(11), 4260-4272 (2013-02-26)
Manganese-peroxos are proposed as key intermediates in a number of important biochemical and synthetic transformations. Our understanding of the structural, spectroscopic, and reactivity properties of these metastable species is limited, however, and correlations between these properties have yet to be
Oligomeric and polymeric procyanidins have been reported to possess different antioxidant capacities. However, the intracellular antioxidant mechanisms of oligomeric and polymeric procyanidins are still poorly understood. In this study, we evaluated the cytoprotective effects of the oligomeric procyanidin fraction (OPF)
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