Journal of the Chemical Society - Faraday Transactions p. 3585 - 3590 (1994)
Update date:2022-08-17
Topics:
Thomson, James
A study of the room-temperature reactions of a series of C1 and C2 chlorohydrocarbon and chlorocarbon substrate molecules with fluorinated iron(II,III) oxide and cobalt(II,III) oxide has been conducted.The results show that fluorinated iron(II,III) oxide exhibits an ability to incorporate fluorine into the following substrates in the order: Cl2C=CCl2 > H2C=CCl2 > CH3CCl3 > CHCl3 > CH2Cl2 > CH2ClCCl3 > CCl4 > CHCl2CHCl2.The fluorinated cobalt(II,III) oxide gave the reactivity series CHCl3 > CCl4 > H2C=CCl2 > CHCl2CHCl2 > CH2Cl2 > CH3CCl3 > CCl2CCl2 > CH2ClCl3.Reactions of C1 chlorohydrocarbon or chlorocarbon probe molecules with fluorinated Fe3O4 gave predominately C1 chlorofluorohydrocarbon and chlorofluorocarbon products, respectively, whereas fluorinated cobalt(II,III) oxide produced predominately C2 chlorofluorohydrocarbon and chlorofluorocarbons.For fluorinated Co3O4 the distribution of C2 products obtained from C1 chlorohydrocarbon precursor molecules is consistent with the formation of radical intermediates at strong Lewis acid surfaces.C2 chlorohydrocarbons exhibit a fluorine for chlorine (F-for-Cl) exchange reaction through the catalytic dehydrochlorination of the substrate to the alkenic intermediate.The F-for-Cl exchange process was dependent upon the ability of the substrate material to undergo dehydrochlorination; the inability of a substrate to undergo dehydrochlorination results in the fluorination process proceeding through the formation of chlorocarbon or chlorohydrocarbon radical intermediates.
View MoreContact:86-21-50966856
Address:Building 5,300 Chuanzhan Road,Pudong New District,Shanghai
Contact:+86-134-5286-9121
Address:Add: Wing Tuck Commercial Centre, 177-183 Wing Lok Street, Hong Kong,
Contact:+86-10-67147360/67107388
Address:No.18 Guangming Zhongjie, Chongwen District, Beijing, 100061, China
website:http://www.chinabarton.com
Contact:+86-573-82719618
Address:No. 162 Fumin Road, Honghe Town,
HENAN NEW BLUE CHEMICAL CO.,LTD
website:http://www.newbluechem.com
Contact:86-371-55170693/55170694
Address:Zhengzhou International Trade New Territory,Jinshui District,Zhengzhou ,China
Doi:10.1021/ja405395z
(2013)Doi:10.1016/j.tetlet.2007.06.009
(2007)Doi:10.1039/c0cc05340f
(2011)Doi:10.1016/0022-1139(93)03038-N
(1994)Doi:10.1016/j.apcata.2016.04.024
(2016)Doi:10.1016/j.jallcom.2005.10.069
(2006)
