Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 6940-78-9, Name is 1-Bromo-4-chlorobutane, molecular formula is C4H8BrCl. In an article, author is Ye, Jing-Jing,once mentioned of 6940-78-9, Safety of 1-Bromo-4-chlorobutane.
The novel poly(vinyldiphenylphosphine) could be easily prepared by using the reactions of the cheap poly(vinyl chloride) with sodium phosphides. Poly(vinyldiphenylphosphine) is soluble in common solvents while its corresponding phosphine oxide is hardly soluble in the solvents. Taking advantage of this different solubility, poly(vinyldiphenylphosphine) could be used as a soluble phosphinopolymer for the Wittig reactions. The reactions could take place efficiently to produce the corresponding olefins while the isolation of the products were simple since the resulted poly(vinyldiphenylphosphine oxide) was not soluble in the solvent and could be easily removed by filtration. (C) 2021 Elsevier Ltd. All rights reserved.
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Reference:
Chloride – Wikipedia,
,Chlorides – an overview | ScienceDirect Topics