Selective oxidation of aromatic primary alcohols to aldehydes using molybdenum acetylide oxo-peroxo complex as catalyst

Synthesis, Structure and Catalytic Properties of Dinuclear MoVI Complexes with Ditopic Diaminotetraphenols

“…Under similar conditions, 45 % of the benzyl alcohol was converted to benzaldehyde at 80°C in 8 h. [20] By contrast, the selectivity was low as 15 % of benzoic acid was formed. In our experiments complex 5 works slightly better under milder conditions (ca.…”

“…[19] Hydrogen peroxide has also been used as oxidant with [Mo(O 2 )(QO) 2 ] (QO = 8-quinolinolate anion) [3b] [with yields up to 66 % in 16 h; the selectivity depends on the substrate, and oxidation with O 2 gave much lower yields] and with (oxido)(peroxido)Mo VI acetylide complex [CpMoO(O 2 )(CϵCPh)] with a high conversion and moderate selectivity. [20] In addition, Mo polyoxoanions with several oxidants have been used to catalyse alcohol oxidations with high yields and selectivity. [21] Herein, we report the syntheses, characterisation and solid-state structures of several novel Mo VI complexes, six with n-alkyl-bridged N,N,NЈ,NЈ-tetrakis(2-hydroxybenzyl)-diamines and one ether-bridged complex (Scheme 1).…”

“…[20] The catalyst systems i-u were prepared by using catalyst/ benzyl alcohol/H 2 O 2 in a 1:500:1000 ratio in four portions at 0, 2, 4 and 6 h in the presence of NEt 3 (0.05 mmol). Reaction p was performed with catalyst 5 without the base.…”

Synthesis, Characterization, and Relative Study on the Catalytic Activity of Zinc Oxide Nanoparticles Doped MnCO3, –MnO2, and –Mn2O3 Nanocomposites for Aerial Oxidation of Alcohols

“…Beside their high costs, these precious metals also have serious toxicity issues and difficulty in preparation and rarity of these noble metals makes these catalysts 2 Journal of Chemistry impractical for industrial applications [29,30]. Therefore, huge efforts have been made in order to replace these expensive noble metal catalysts with cheaper and plentiful nonnoble metals, for example, copper [31,32], cobalt [33,34], nickel [35][36][37], iron [38,39], vanadium [40], silver [41,42], chromium [43], molybdenum [44,45], rhenium [46], and zirconium [47], for selective oxidation of alcohols. The metal, metal oxide, and mixed metal oxide nanoparticles catalysts were also found to be highly effective for the catalytic oxidation of alcohols.…”

Comparative Catalytic Evaluation of Nano-ZrOx Promoted Manganese Catalysts: Kinetic Study and the Effect of Dopant on the Aerobic Oxidation of Secondary Alcohols

“…Furthermore, there are many oxidation catalysts prepared by employing noble metals, such as gold [16][17][18][19][20][21], palladium [22][23][24][25], platinum [26,27], rhodium [28,29], and ruthenium [30,31], which have been extensively utilized for the aerial oxidation of alcohols with high catalytic performances. Consequently, a significant effort has been made in order to explore eco-friendly and low cost catalysts 2 Advances in Materials Science and Engineering such as nonnoble metals like copper [32][33][34], cobalt [35][36][37], nickel [38][39][40], iron [41,42], vanadium [43], silver [44], chromium [45,46], molybdenum [47,48], rhenium [49], and zinc [50][51][52] for aerobic oxidation of alcohols. In addition, it has been extensively reported that the catalytic activity of mixed metal oxide nanoparticles catalysts enhanced remarkably upon doping with other metals probably due to the extremely high surface area of metal nanoparticles [53,54].…”