829-84-5Relevant articles and documents
Copper-catalyzed C–P cross-coupling of secondary phosphines with (hetero)aromatic bromide
Li, Chun-Jing,Lü, Jing,Zhang, Zhi-Xun,Zhou, Kun,Li, Yan,Qi, Guang-Hui
, p. 4547 - 4562 (2018/04/20)
A novel and convenient approach to the synthesis of various tertiary phosphines via a copper-catalyzed cross-coupling of (hetero)aromatic bromide with secondary phosphines has been developed. The reaction employs cheap copper as the catalyst, 2,6-bis(N-methylaminomethyl)pyridine (L4) as a perfect ligand and KOtBu as a base; all reactions are carried out under argon atmosphere. A variety of sterically hindered and/or functionalized substrates were found to react under these reaction conditions to provide products in good to excellent yields. Moreover, ten new tertiary phosphines were first reported in this process.
Photo-initiator 2,4,6-trimethylbenzoyldicyclohexyloxyphosphine and preparation method and application thereof
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Paragraph 0020; 0021, (2016/10/20)
The invention relates to a preparation method of a photo-initiator 2,4,6-trimethylbenzoyldicyclohexyloxyphosphine.Under the protection of argon, dicyclohexyl phosphine oxide, metallic sodium and tertiary butanol are reacted in methylbenzene solution to obtain intermediate I; the intermediate I is reacted with 2,4,6-trimethylbenzoyl chloride to obtain intermediate II; the intermediate II is reacted with hydrogen peroxide at 30-35 DEG C to obtain 2,4,6-trimethylbenzoyldicyclohexyloxyphosphine, and liquid phase purity is up to 99.21%.The preparation method is simple to perform and advanced, a solvent is recyclable, and the method is easy for industrial production.
Reduction of phosphinites, phosphinates, and related species with DIBAL-H
Busacca, Carl A.,Bartholomeyzik, Teresa,Cheekoori, Sreedhar,Raju, Ravinder,Eriksson, Magnus,Kapadia, Suresh,Saha, Anjan,Zeng, Xingzhong,Senanayake, Chris H.
experimental part, p. 287 - 291 (2009/07/01)
Diisobutylaluminium hydride has been found to be an excellent reducing agent for phosphinites, phosphinates, and chlorophosphines. By performing reductions in situ, direct synthesis of secondary phosphine boranes from Grignard reagents has been achieved without isolation or purification of any intermediates. Georg Thieme Verlag Stuttgart.