Pd(OAc)2/dppp, an efficient catalytic system for the oxidative esterification of benzaldehyde using organic halides as oxidants

Zn Promoted Mg-Al Mixed Oxides-Supported Gold Nanoclusters for Direct Oxidative Esterification of Aldehyde to Ester

“…Therefore, the green oxidants such as air and dioxygen over heterogeneous catalysts under mild conditions are highly desirable. The supported noble metal Pd-based catalysts have been reported to be efficient for one-step oxidative cross-esterification reaction between aldehyde and alcohol in the presence of molecular oxygen [8][9][10][11][12]. However, the selectivity of the corresponding esters is typically low and this process requires the addition of environmentally unfriendly heavy metals, such as Pb and Bi [8][9][10].…”

“…The supported noble metal Pd-based catalysts have been reported to be efficient for one-step oxidative cross-esterification reaction between aldehyde and alcohol in the presence of molecular oxygen [8][9][10][11][12]. However, the selectivity of the corresponding esters is typically low and this process requires the addition of environmentally unfriendly heavy metals, such as Pb and Bi [8][9][10]. Furthermore, the utilization of liquid base additives is needed for Pd-based catalysts, which makes the process less green and not cost-effective [11,12].…”

Na4PMo11VO40-catalyzed one-pot oxidative esterification of benzaldehyde with hydrogen peroxide

“…[12][13][14] Nonetheless, hydrogen peroxide requires an activation step, which is generally performed by a metal catalyst such as an oxide, salt, or organometallic compound. [15][16][17][18] Solid-supported catalysts have been demonstrated to be active in the oxidation of aldehydes with hydrogen peroxide. [19][20][21][22][23] Thakur et al investigated oxidation with hydrogen peroxide of aromatic and aliphatic aldehydes to methyl esters over a VO(acac) 2 /TiO 2 catalyst.…”

Synthesis and Characterization of Magnesium Hydroxide & Cerium Oxide Composite: Application in Organic Transformation

“…Benzaldehyde is the second most important aromatic molecule after vanillin which is used in perfumery and food industries. In literature, production of benzaldehyde has been reported by using different homogeneous, heterogeneous catalyst (supported or unsupported) and reagents like Cr(VI) species, permanganate salts . These methods have several drawbacks like harsh conditions, stoichiometric oxidizing reagents, high temperature, prolonged reaction time, high cost, and moisture sensitive reagents/catalysts.…”