42757-54-0Relevant academic research and scientific papers
Preparation method for octabromo S ether
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Paragraph 0031-0035; 0038-0042; 0045-0049; 0052-0056; 0059, (2019/07/01)
The invention relates to a preparation method for octabromo S ether. The invention aims to solve the technical problems of high process cost, low yield, long reaction route and high risk of the synthesis method for octabromo S ether in prior art. The prep
Isolation and identification of tetrabromobisphenol-S-bis-(2,3-dibromopropyl ether) as flame retardant in polypropylene
Dettmer,Wichmann,De Boer,Bahadir
, p. 1523 - 1532 (2007/10/03)
Approximately 4% tetrabromobisphenol-S-bis-(2,3-dibromopropyl ether) and 0.44% antimony were found in the back wall of a TV cabinet. This is the first time a bromoorganic name retardant containing a sulfur linkage has been detected. No such compound has been previously mentioned in the analytical or environmental literature. Isolation from PP was performed by extraction and precipitation of coextracted polymer. After chromatographic separation (TLC, CC), the combination of 1H/13C-NMR, MS (EI), FT-IR and HPLC (UV/Vis, DAD and MS) indicated the TBBP-S derivative, which was verified by synthesis of reference material.
Process for preparing bis-(4-hydroxy-3,5-dibromophenyl)-sulfone derivatives
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, (2008/06/13)
Bis-(4-hydroxy-3,5-dibromophenyl) sulfone is converted to an allyl ether in the presence of an alkali with allyl chloride in the presence of a bromide and/or an iodide, and/or a substance capable of forming a bromide and/or an iodide by reaction with the
