1054-60-0Relevant articles and documents
Reductive Rearrangement of Tetraphenyldiphosphine Disulfide To Trigger the Bisthiophosphinylation of Alkenes and Alkynes
Sato, Yuki,Nishimura, Misaki,Kawaguchi, Shin-ichi,Nomoto, Akihiro,Ogawa, Akiya
, p. 6797 - 6806 (2019)
The facile synthesis of organophosphorus compounds is of great importance for the development of new synthetic methods by using air-stable sources of phosphorus. In this respect, a synthetic method that is based on a reductive rearrangement and is capable of converting air-stable pentavalent phosphorus compounds into reactive trivalent phosphorus compounds is a powerful tool. Tetraphenyldiphosphine disulfide, which is a shelf-stable solid, was the focus of this study, and it was shown to undergo reductive rearrangement to trigger the bisthiophosphinylation of a variety of alkenes, such as terminal, cyclic, internal, and branched alkenes, 1,3-dienes, and terminal alkynes when exposed to light without any catalyst, base, or additive.
Preparation method of phosphinate, phosphinate and non-aqueous electrolyte
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Paragraph 0087-0088, (2020/08/09)
The present invention provides a method for preparing phosphinate, the phosphinate and a non-aqueous electrolyte. The method for preparing the phosphinate comprises the following steps: (1) reaction of Grignard reagent R1MgX with thiophosphoryl halide X3P=S in a solvent to obtain a first intermediate; (2) reaction of halogenating agent M' Xa and the first intermediate to obtian a second intermediate; and (3) reaction of the second intermediate with R2OH and water to obtain the phosphinate; wherein R1 and R2 are each selected from the group consisting of hydrocarbon groups or an organic group containing at least one element of boron, silicon, nitrogen, phosphorus, oxygen, sulfur, fluorine, chlorine, bromine, and iodine; X represents a halogen; M' represents a metal element; and a representsa valence of the metal element M'. The electrolyte prepared by from the phosphinate can improve the high-temperature cycle stability of a secondary battery, also has non-flammable, flame-retardant orself-extinguishing characteristics, and can improve the safety performance of the secondary battery.
Preparation of organohalosilanes
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, (2008/06/13)
In an industrial process for preparing organohalosilanes by reacting metallic silicon particles with an organohalide in the presence of a copper catalyst, a contact mass composed of the metallic silicon and the catalyst further contains an effective amount of a phosphine chalcogenide compound. The invention drastically increases the silane formation rate and the utilization of silicon without lowering the selectivity of useful silane.
