92346-46-8Relevant academic research and scientific papers
Powerful insight into catalytic mechanisms through simultaneous monitoring of reactants, products, and intermediates
Vikse, Krista L.,Ahmadi, Zohrab,Manning, Cara C.,Harrington, David A.,McIndoe, J. Scott
, p. 8304 - 8306 (2011)
Keeping an eye on all the players: The combination of bulky phosphonium tags and pressurized sample infusion transforms electrospray ionization mass spectrometry into a tool capable of producing dense data on the relative concentrations of all components of a catalytic reaction, such as the palladium-catalyzed coupling of an aryl iodide with phenylacetylene (see graph).
Quaternary phosphonium salt flame retardant and synthesis method and application thereof
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Paragraph 0231-0236, (2020/06/20)
The invention provides a quaternary phosphonium salt flame retardant and a synthesis method and application thereof, and the method comprises the following steps: by taking an acidic compound, ortho-formic acid trisubstituted ester and an organic phosphine compound III or IV as raw materials, carrying out a one-step reaction process to prepare the quaternary phosphonium salt flame retardant I or II. The flame retardant disclosed by the invention has good thermal stability and has an excellent flame-retardant effect when being applied to various polymers. The method is simple and convenient insynthesis operation, low in raw material price, mild in synthesis condition and high in yield. According to the synthesis method, introduction of halogen ions is avoided, and dozens of anions are successfully introduced. By adding a small amount of the flame retardant, the obtained PC flame-retardant composite material UL-94 can reach the V-0 grade.
