Catalysis science and technology p. 1922 - 1932 (2019)
Update date:2022-08-11
Topics:
Yan, Fei
Wen, Zhe
Wu, Kai
Cui, Kai
Mai, Fuhang
Ma, Zewei
Sang, Yushuai
Bai, Yunfei
Chen, Hong
Li, Yongdan
When V2O5 is used for the deoxygenation of guaiacol in methanol, it is reduced in situ to haggite structured V4O6(OH)4. Guaiacol prevents further reduction of the haggite phase in methanol and haggite catalyzes the partial deoxygenation of guaiacol. Haggite is a metastable redox catalyst for the deoxygenation of guaiacol, which follows the reverse Mars-van Krevelen mechanism. In addition, haggite is also a Lewis acid catalyst and catalyzes the alkylation of guaiacol with methanol as the alkylation reagent. The main products of the guaiacol deoxyalkylation are 2,6-dimethylphenol, 2-methoxy-6-methylphenol, 2,4,6-trimethylphenol, 2,3,6-trimethylphenol, 2,3,5,6-tetramethylphenol and 6-methyl-2-tert-butylphenol. Oligomerization takes place during the reaction but it is reversible. When the reaction is performed at 300 °C for 6 h, the 83.5% total selectivity for alkylphenols is achieved with a 99.0% conversion.
View MoreShanghai Yuking Water Soluble Material Tech Co., Ltd
Contact:86-21-68286299
Address:4F, 13B, No. 600, South Xinyuan Road 201306, Shanghai, China
Jiangsu Chiatai Qingjiang Pharmaceutical Co.,Ltd
Contact:+86-517-86283327
Address:9 North Hantai Road, Huaian, China
Hunan Zhongqi Pharmaceutical Co., Ltd
website:http://www.hnzqzy.com
Contact:0730-8722288 13807308622
Address:Wanjiafan Road ,Yueyang Economic And Technological Development Zone ,Hunan,PRC
Zhejiang Genebest Pharmaceutical Co.,Ltd.
Contact:0086-571-63532866
Address:No.1 Jinboshi Rd Lishan Town Fuyang City Zhejiang Province China
Jinan Baozhao Pharmaceutical Co., Ltd
Contact:0086-531-86397156 82371858 82371868
Address:Huaneng Road, Jinan, Shandong ,China
Doi:10.1016/j.jallcom.2008.12.116
(2009)Doi:10.1021/ic50201a027
(1979)Doi:10.1016/S0040-4039(01)86920-3
(1973)Doi:10.1039/a903072g
(1999)Doi:10.1080/00397910008087269
(2000)Doi:10.1016/j.jorganchem.2014.09.037
(2014)