99705-46-1Relevant academic research and scientific papers
METHOD FOR PRODUCING 4-METHYL-2,3,5,6-TETRAFLUOROBENZYL ALCOHOL
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Page/Page column 12-13, (2009/12/07)
A process for producing 4-methyl-2,3,5,6-tetrafluorobenzyl alcohol comprising the following steps (A) to (D): Step (A): a step for fluorinating 2,3,5,6-tetrachloroterephthaloyl dichloride, Step (B): a step for reducing the product obtained in step (A), Step (C): a step for chlorinating the product obtained in step (B), Step (D): a step for hydrogenating the product obtained in step (C).
Preparation of one intermediate for pyrethroids
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Page/Page column 4-5, (2008/06/13)
Methods for preparing 2,3,5,6-tetrafluorodimethylolbenzene, an intermediate for the preparation of pyrethroids, are disclosed. A method for preparing 2,3,5,6-tetrafluorodimethylolbenzene includes the reduction of tetrafluoroterephthalate. Various reduction processes are disclosed, which are simple and safe and can afford the product in high yield and purity. Processes for preparing tefluthrin from 2,3,5,6-tetrafluorodimethylolbenzene, by halogenation, hydrogenation, and esterification, are also disclosed.
A CONVENIENT SYNTHESIS OF CERTAIN HYDROXYMETHYL TETRAHALOGENOBENZYL BROMIDES
Costello, Alan T.,Milner, David J.
, p. 219 - 222 (2007/10/02)
Surprisingly, toluene solutions certain tetrahalogenobenzene dimethanols rapidly afford the corresponding hydroxymethyl tetrahalogenobenzyl bromides in about 90percent yield on treatment with hydrobromic acid without the need for continuous removal of the
