CoAl metahydrotalcite-B efficiently catalyzes the aerobic oxidative cleavage of 1,2-diols without any additives

Xiao, Yue; Zhou, Weiyou; Ji, Shuliang; Lu, Wangmingzhu; Hua, Xianjun; He, Mingyang; Chen, Qun; Liu, Yupeng

doi:10.1016/j.apcata.2022.118944

Cited by 6 publications

(1 citation statement)

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“…[17,18] Therefore, vanadium is a key component in the catalysis of oxidative cleavage. [9] Mn-, [19][20][21][22] Fe-, [23,24] Co- [25][26][27][28] and Cu-based [29][30][31][32] catalysts have also been reported for oxidative cleavage of α-hydroxyketones or vicinal diols, but these are effective only for aromatic substrates. On the other hand, our group has recently reported the oxidative cleavage of 2methoxycyclohexanone, which has a similar structure to 2-HCO, to AA.…”

Section: Introductionmentioning

confidence: 99%

2‐Hydroxyadipic Acid Production by Oxidation of 2‐Hydroxycyclohexanone with Molecular Oxygen

et al. 2023

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Oxidation of 2-hydroxycyclohexanone (2-HCO) which can be synthesized from both petroleum and biomass was investigated with heteropolyacids and oxygen as catalysts and oxidant, respectively. 2-Hydroxyadipic acid (2-HAA) was obtained in moderate yields, and H 4 PVW 11 O 40 gave the highest yield (39 %). 2-HAA is a dicarboxylic acid expected to be a monomer, and this work is the first report for production of 2-HAA by catalytic oxidation reactions. The oxidation of 1,2-cyclohexanedione (CHDO), which is a potential intermediate of 2-HCO oxidation, produced similar yield of 2-HAA even without catalyst. The effects of catalyst amount (first order), oxygen pressure (almost zero order) and the addition of radical scavenger (no effect) on the 2-HCO oxidation with H 4 PVW 11 O 40 catalyst were similar to those in a related case of 2-methoxycyclohexanone oxidation to adipic acid with heteropolyacid catalyst. 2-HCO is proposed to be oxidized to CHDO as a precursor of 2-HAA in a similar mechanism to 2-methoxycyclohexanone oxidation.

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