Magnetic Co(II) Porphyrin Nanospheres Appending Different Substituent Groups Showing Higher Catalytic Activities in Cyclohexane

Ping, Zhao; Liu, Minchao; Zheng, Min; Jin, Shufang; Tang, Ding-tong; Jia‐Qi, Lin; Ma, Yan‐Na; Chen, Jiong; Liu, Hongjian

doi:10.1166/jnn.2016.12615

Cited by 3 publications

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“…Moreover, the ICP‐OES analyses show that the cobalt content (0.0034 %) in the fifth‐recovered Co TPFPP/np‐CTSwas very close to that (0.0035 %) of the first‐usedcatalyst, which indicates that the Co TPFPP/np‐CTS catalyst did not show leaching in cyclohexane. These facts demonstrate that, the covalently grafting had not only an important promotion for the total TOFs (TON), but also the stabilization of np‐CTS‐immobilized Co TPFPP catalyst for the cyclohexane oxidation.The total TOFs of Co TPFPP/np‐CTS was ∼5 times as much as those of Co TCPP/ZnS, and Fe(III) TPPS/pd‐CTS; ∼48 and ∼2078 times as much as those of Mn(III) P‐CMP, and MPNSs(CoMP) …”

Section: Resultsmentioning

confidence: 98%

Highly Active Catalysis of Cobalt Tetrakis(pentafluorophenyl)porphyrin Promoted by Chitosan for Cyclohexane Oxidation in Response‐Surface‐Methodology‐Optimized Reaction Conditions

Huang

Yuan

et al. 2019

ChemistryOpen

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We aimed at elevating catalytic performances of cobalt tetrakis(pentafluorophenyl)porphyrin (Co TPFPP) through axial coordination, nanocavities, and covalently grafting action. The Co TPFPP was immobilized onto nanoporous and nonporous chitosan, forming Co TPFPP/np‐ and nonp‐CTS catalysts, respectively. The catalysts were characterized by various spectroscopic techniques. The catalytic performances of these catalysts for cyclohexane oxidation under response‐surface‐methodology‐optimized oxidation reaction conditions were estimated and compared. Co TPFPP/np‐CTS was an excellent catalyst at aspect of catalytic activity, exhibiting the considerable potential reusability, 24.2 mol % yields (KA oil : cyclohexanone and cyclohexanol) in average, and total turnover frequencies (TOFs) of 3.25×106 h−1. This is attributed to the structural characteristics of the Co TPFPP/np‐CTS catalyst: the cobalt porphyrin molecules could be highly scattered on CTS, forming the independent active sites, and were not leached. The axial coordination exerted the most important effect on the catalytic activity, and the covalent grafting action had a decisive effect on the increase of the total TOFs and on the reusability of the catalyst.

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Section: Resultsmentioning

confidence: 98%

Highly Active Catalysis of Cobalt Tetrakis(pentafluorophenyl)porphyrin Promoted by Chitosan for Cyclohexane Oxidation in Response‐Surface‐Methodology‐Optimized Reaction Conditions

Huang

Yuan

et al. 2019

ChemistryOpen

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“…31,32 Porphyrins 2 – 4 were synthesized according to the classical Adler–Longo method shown in Scheme 2. 33–36 Metalloporphyrins 5 and 6 were obtained after metalizing porphyrins 2 and 3 . 37 The synthesis of the target compounds 2a – 6e followed the general pathway shown in Scheme 3.…”

Section: Resultsmentioning

confidence: 99%

Novel photosensitizing properties of porphyrin–chrysin derivatives with antitumor activity in vitro

Liu

Zhang

et al. 2020

Journal of Chemical Research

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Photodynamic therapy is a promising cancer treatment with the advantages of low toxicity, high efficiency, and noninvasiveness. In this study, 23 novel porphyrin–chrysin derivatives are synthesized using alkyl carbon chains as bridges. We use human gastric cancer cells (MGC-803) and human cervical cancer cells to evaluate the in vitro antitumor activity of all the porphyrin–chrysin derivatives, with 5-fluorouracil (5-Fu) as a positive control. Several of the prepared compounds showed effective photodynamic killing effects, among which 5-hydroxy-2-phenyl-7-(2-(4-(10,15,20-tris(4-hydroxyphenyl)porphyrin-5-yl)phenoxy)ethoxy)-4 H-chromen-4-one shows the highest antiproliferation activity on human cervical cancer cells, with a half maximal inhibitory concentration of 26.51 ± 1.15 µM. Flow cytometry analysis showed that human cervical cancer cell apoptosis might be induced by G1 phase arrest.

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Study on maximizing catalytic performance of cobalt(II) 5,10,15,20-tetrakis(4-pyridyl)porphyrin for cyclohexane oxidation

Yuan

Huang

Wei

2019

Journal of Industrial and Engineering Chemistry

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Magnetic Co(II) Porphyrin Nanospheres Appending Different Substituent Groups Showing Higher Catalytic Activities in Cyclohexane

Cited by 3 publications

References 0 publications

Highly Active Catalysis of Cobalt Tetrakis(pentafluorophenyl)porphyrin Promoted by Chitosan for Cyclohexane Oxidation in Response‐Surface‐Methodology‐Optimized Reaction Conditions

Highly Active Catalysis of Cobalt Tetrakis(pentafluorophenyl)porphyrin Promoted by Chitosan for Cyclohexane Oxidation in Response‐Surface‐Methodology‐Optimized Reaction Conditions

Novel photosensitizing properties of porphyrin–chrysin derivatives with antitumor activity in vitro

Study on maximizing catalytic performance of cobalt(II) 5,10,15,20-tetrakis(4-pyridyl)porphyrin for cyclohexane oxidation

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