Catalytic Performance of Supported PbO Catalysts for Synthesis of Methyl N-phenyl Carbamate from Aniline and Dimethyl Carbonate

Chinese Journal of Catalysis ›› 2007, Vol. 28 ›› Issue (1): 5-9.

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Catalytic Performance of Supported PbO Catalysts for Synthesis of Methyl N-phenyl Carbamate from Aniline and Dimethyl Carbonate

KANG Wukui~ 1; 2; KANG Tao~1; MA Fei~1; ZHAO Yongfeng~3; CUI Lili~3; YAO Jie~1; WANG Gongying~ 1

1 Chengdu Institute of Organic Chemistry; The Chinese Academy of Sciences; Chengdu 610041; Sichuan; China; 2 College of Science; Laiyang Agriculture College; Qingdao 266109; Shandong; 3 Shengli Chemical Company of SINOPEC Shengli Oilfield; Dongying 257503; China

Received:2007-01-25 Online:2007-01-25 Published:2010-08-28

Abstract

Abstract: The catalytic performance of a series of supported PbO catalysts for synthesis of methyl N-phenyl carbamate (MPC) from aniline (An) and dimethyl carbonate (DMC) was studied. It was found that PbO/SiO_2 showed the best catalytic performance. The yield of MPC was 99.5% under the conditions of n(PbO) / n(An) =1%, n(DMC) / n(An) =5, θ=160 ℃, and t=4 h. The PbO/SiO_2 catalyst was easily separated from the product solution, and the catalyst remained higher activity after reuse 5 times, which showed that the lifespan of PbO/SiO2 was long.

Key words: aniline, dimethyl carbonate, methyl N-phenyl carbamate, lead oxide, silica, supported catalyst

KANG Wukui~ 1; 2; KANG Tao~1; MA Fei~1; ZHAO Yongfeng~3; CUI Lili~3; YAO Jie~1; WANG Gongying~ 1. Catalytic Performance of Supported PbO Catalysts for Synthesis of Methyl N-phenyl Carbamate from Aniline and Dimethyl Carbonate[J]. Chinese Journal of Catalysis, 2007, 28(1): 5-9.

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Catalytic Performance of Supported PbO Catalysts for Synthesis of Methyl N-phenyl Carbamate from Aniline and Dimethyl Carbonate

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