Single-step catalytic synthesis of diphenyl carbonate over transition-metal-substituted Keggin-type tungstophosphoric acid

Shengjun Luo; Yingnan Chi; Lingna Sun; Qiang Wang; Changwen Hu

doi:10.1016/j.catcom.2008.07.021

Single-step catalytic synthesis of diphenyl carbonate over transition-metal-substituted Keggin-type tungstophosphoric acid

Shengjun Luo, Yingnan Chi, Lingna Sun, Qiang Wang, Changwen Hu^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Single-step catalytic synthesis of diphenyl carbonate (DPC) through the transesterification of dimethyl carbonate (DMC) and phenol could be firstly arrived by using the transition-metal-substituted polyoxometalates (TMS-POMs) K₅[PW₁₁O₃₉M(H₂O)]/TiO₂ system (M = Mn^II, Co^II, Ni^II, Cu^II, Zn^II). The catalytic activity of this transesterification was strongly influenced by the type of transition metal in the TMS-POMs. Among them, the K₅[PW₁₁O₃₉Zn(H₂O)]/TiO₂ catalytic system showed the highest activity and selectivity for DPC. The conversion of phenol reached 12.8%, and the selectivity to DPC was 83.6%. The turnover number (TON) reached 6.44 × 10⁴ mol/mol [PW₁₁O₃₉Zn(H₂O)]^5-/TiO₂. A possible mechanism that the transition metal in the polyoxometalates anchored DMC to form intermediate compound in the transesterification was proposed.

Original language	English
Pages (from-to)	2560-2564
Number of pages	5
Journal	Catalysis Communications
Volume	9
Issue number	15
DOIs	https://doi.org/10.1016/j.catcom.2008.07.021
Publication status	Published - 20 Sept 2008

Keywords

Diphenyl carbonate
Phosgene-free
Polyoxometalates
Transesterification

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title = "Single-step catalytic synthesis of diphenyl carbonate over transition-metal-substituted Keggin-type tungstophosphoric acid",

abstract = "Single-step catalytic synthesis of diphenyl carbonate (DPC) through the transesterification of dimethyl carbonate (DMC) and phenol could be firstly arrived by using the transition-metal-substituted polyoxometalates (TMS-POMs) K5[PW11O39M(H2O)]/TiO2 system (M = MnII, CoII, NiII, CuII, ZnII). The catalytic activity of this transesterification was strongly influenced by the type of transition metal in the TMS-POMs. Among them, the K5[PW11O39Zn(H2O)]/TiO2 catalytic system showed the highest activity and selectivity for DPC. The conversion of phenol reached 12.8%, and the selectivity to DPC was 83.6%. The turnover number (TON) reached 6.44 × 104 mol/mol [PW11O39Zn(H2O)]5-/TiO2. A possible mechanism that the transition metal in the polyoxometalates anchored DMC to form intermediate compound in the transesterification was proposed.",

keywords = "Diphenyl carbonate, Phosgene-free, Polyoxometalates, Transesterification",

author = "Shengjun Luo and Yingnan Chi and Lingna Sun and Qiang Wang and Changwen Hu",

year = "2008",

month = sep,

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doi = "10.1016/j.catcom.2008.07.021",

language = "English",

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journal = "Catalysis Communications",

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T1 - Single-step catalytic synthesis of diphenyl carbonate over transition-metal-substituted Keggin-type tungstophosphoric acid

AU - Luo, Shengjun

AU - Chi, Yingnan

AU - Sun, Lingna

AU - Wang, Qiang

AU - Hu, Changwen

PY - 2008/9/20

Y1 - 2008/9/20

N2 - Single-step catalytic synthesis of diphenyl carbonate (DPC) through the transesterification of dimethyl carbonate (DMC) and phenol could be firstly arrived by using the transition-metal-substituted polyoxometalates (TMS-POMs) K5[PW11O39M(H2O)]/TiO2 system (M = MnII, CoII, NiII, CuII, ZnII). The catalytic activity of this transesterification was strongly influenced by the type of transition metal in the TMS-POMs. Among them, the K5[PW11O39Zn(H2O)]/TiO2 catalytic system showed the highest activity and selectivity for DPC. The conversion of phenol reached 12.8%, and the selectivity to DPC was 83.6%. The turnover number (TON) reached 6.44 × 104 mol/mol [PW11O39Zn(H2O)]5-/TiO2. A possible mechanism that the transition metal in the polyoxometalates anchored DMC to form intermediate compound in the transesterification was proposed.

AB - Single-step catalytic synthesis of diphenyl carbonate (DPC) through the transesterification of dimethyl carbonate (DMC) and phenol could be firstly arrived by using the transition-metal-substituted polyoxometalates (TMS-POMs) K5[PW11O39M(H2O)]/TiO2 system (M = MnII, CoII, NiII, CuII, ZnII). The catalytic activity of this transesterification was strongly influenced by the type of transition metal in the TMS-POMs. Among them, the K5[PW11O39Zn(H2O)]/TiO2 catalytic system showed the highest activity and selectivity for DPC. The conversion of phenol reached 12.8%, and the selectivity to DPC was 83.6%. The turnover number (TON) reached 6.44 × 104 mol/mol [PW11O39Zn(H2O)]5-/TiO2. A possible mechanism that the transition metal in the polyoxometalates anchored DMC to form intermediate compound in the transesterification was proposed.

KW - Diphenyl carbonate

KW - Phosgene-free

KW - Polyoxometalates

KW - Transesterification

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DO - 10.1016/j.catcom.2008.07.021

M3 - Article

AN - SCOPUS:50849121401

SN - 1566-7367

VL - 9

SP - 2560

EP - 2564

JO - Catalysis Communications

JF - Catalysis Communications

IS - 15

ER -

Single-step catalytic synthesis of diphenyl carbonate over transition-metal-substituted Keggin-type tungstophosphoric acid

Abstract

Keywords

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