Synthesis of Pd(C4H2O4)(C4H8N2)0.5 Complex and the Catalytic Activity for Oxidative Carbonylation of Phenol

›› 2008, Vol. 16 ›› Issue (3): 354-356.

Synthesis of Pd(C₄H₂O₄)(C₄H₈N₂)_0.5 Complex and the Catalytic Activity for Oxidative Carbonylation of Phenol

程庆彦¹, 梁亚男¹, 高玲², 王延吉¹

1. Key Laboratory of Green Chemical Technology & High Efficient Energy Saving of Hebei Province, Hebei University of Technology, Tianjin 300130, China;
2. Tianjin Honest Industry Co. Ltd., Tianjin 300382, China

收稿日期:2007-09-20 修回日期:2008-03-30 出版日期:2008-06-28 发布日期:2008-06-28
通讯作者: CHENG Qingyan,E-mail:chengqingyan@hebut.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China(20636030);Tianjin Natural Science Foundation(07JCZDJC00100)

Synthesis of Pd(C₄H₂O₄)(C₄H₈N₂)_0.5 Complex and the Catalytic Activity for Oxidative Carbonylation of Phenol

CHENG Qingyan¹, LIANG Yanank¹, GAO Ling², WANG Yanji¹

1. Key Laboratory of Green Chemical Technology & High Efficient Energy Saving of Hebei Province, Hebei University of Technology, Tianjin 300130, China;
2. Tianjin Honest Industry Co. Ltd., Tianjin 300382, China

Received:2007-09-20 Revised:2008-03-30 Online:2008-06-28 Published:2008-06-28
Supported by:
Supported by the National Natural Science Foundation of China(20636030);Tianjin Natural Science Foundation(07JCZDJC00100)

摘要/Abstract

摘要： A novel complex Pd(C₄H₂O₄)(C₄H₈N₂)_0.5 has been synthesized by solvent thermal synthesis and used as a heterogeneous catalyst for direct synthesis of diphenyl carbonate (DPC) by oxidative carbonylation of phenol. In the reaction system of Pd(C₄H₂O₄)(C₄H₈N₂)_0.5/Cu(OAc)₂/tetrabutylammonium bromide/hydroquinone/4A molecular sieves, the effect of reaction temperature, time and CO pressure on catalytic activity were investigated, and the results revealed that the catalyst could catalyze oxidative carbonylation of phenol effectively. Under suitable reaction conditions of T=90℃, t=4 h, p(O₂)=0.3 MPa, p(CO)=3.9 MPa and CH₂Cl₂ as solvent, the turnover number (TON) of diphenyl carbonate can reach about 13.50 (mol-DPC/mol-Pd), which is higher than the TON for pure PdCl₂ under the same reaction conditions.

关键词: diphenyl carbonate, synthesis, heterogeneous catalyst, palladium complex, oxidative carbonylation

Abstract: A novel complex Pd(C₄H₂O₄)(C₄H₈N₂)_0.5 has been synthesized by solvent thermal synthesis and used as a heterogeneous catalyst for direct synthesis of diphenyl carbonate (DPC) by oxidative carbonylation of phenol. In the reaction system of Pd(C₄H₂O₄)(C₄H₈N₂)_0.5/Cu(OAc)₂/tetrabutylammonium bromide/hydroquinone/4A molecular sieves, the effect of reaction temperature, time and CO pressure on catalytic activity were investigated, and the results revealed that the catalyst could catalyze oxidative carbonylation of phenol effectively. Under suitable reaction conditions of T=90℃, t=4 h, p(O₂)=0.3 MPa, p(CO)=3.9 MPa and CH₂Cl₂ as solvent, the turnover number (TON) of diphenyl carbonate can reach about 13.50 (mol-DPC/mol-Pd), which is higher than the TON for pure PdCl₂ under the same reaction conditions.

Key words: diphenyl carbonate, synthesis, heterogeneous catalyst, palladium complex, oxidative carbonylation

程庆彦, 梁亚男, 高玲, 王延吉. Synthesis of Pd(C₄H₂O₄)(C₄H₈N₂)_0.5 Complex and the Catalytic Activity for Oxidative Carbonylation of Phenol[J]. , 2008, 16(3): 354-356.

CHENG Qingyan, LIANG Yanank, GAO Ling, WANG Yanji. Synthesis of Pd(C₄H₂O₄)(C₄H₈N₂)_0.5 Complex and the Catalytic Activity for Oxidative Carbonylation of Phenol[J]. , 2008, 16(3): 354-356.

参考文献

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Synthesis of Pd(C₄H₂O₄)(C₄H₈N₂)_0.5 Complex and the Catalytic Activity for Oxidative Carbonylation of Phenol

Synthesis of Pd(C₄H₂O₄)(C₄H₈N₂)_0.5 Complex and the Catalytic Activity for Oxidative Carbonylation of Phenol

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