54300-33-3Relevant academic research and scientific papers
Microwave assisted P–C coupling reactions without directly added P-ligands
Henyecz, Réka,Huszár, Bianka,Keglevich, Gy?rgy,Mucsi, Zoltán
, (2021/12/24)
Our group introduced a green protocol for the Pd(OAc)2- or NiCl2-catalyzed P–C coupling reaction of aryl halides and various > P(O)H-compounds under MW conditions without directly added P-ligands. The reactivity of a few aryl derivatives in the Pd(OAc)2-catalyzed Hirao reaction was also studied. An induction period was observed in the reaction of bromobenzene and diphenylphosphine oxide. Finally, the less known copper(I)-promoted P–C coupling reactions were investigated experimentally. The mechanism was explored by quantum chemical calculations.
General Oxidative Aryl C-P Bond Formation through Palladium-Catalyzed Decarbonylative Coupling of Aroylhydrazides with P(O)H Compounds
Dong, Jianyu,Liu, Long,Ji, Xuyu,Shang, Qian,Liu, Lixin,Su, Lebin,Chen, Bing,Kan, Ruifeng,Zhou, Yongbo,Yin, Shuang-Feng,Han, Li-Biao
supporting information, p. 3198 - 3203 (2019/05/10)
Oxidative C-C/P-H cross-coupling is achieved via Pd-catalyzed decarbonylative cross-coupling of aroylhydrazides with P(O)H compounds. The unique cooperative reaction system, especially the Br?nsted acid and bidentate phosphine ligand, allows the selective activation of the inert C-C bond and the suppression of the undesired oxidation and coordination of >P(O)-H compounds, leading to a general oxidative synthesis of aryl phosphorus compounds from easily available substrates.
Copper-Catalyzed Addition of H-P(O) Bonds to Arynes
Chen, Qian,Yan, Xinxing,Wen, Chunxiao,Zeng, Jiekun,Huang, Yulin,Liu, Xingguo,Zhang, Kun
, p. 9476 - 9482 (2016/10/14)
An efficient P-arylation of secondary phosphine oxides has been achieved through the ligand-free copper-catalyzed addition of H-P(O) bonds to in situ generated arynes at room temperature. This transformation provides a straightforward route to the formation of the aryl-P bond with wide functional group compatibility, which produces arylphosphine oxides in up to 99% yield.
Methods for making tertiary phosphine oxides
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, (2008/06/13)
Methods for making tertiary phosphine oxides from the corresponding tertiary phosphine sulfides by reacting the latter with sulfuric acid and/or organic sulfonic acids at temperatures from 70° C. to 200° C.
Process for the preparation of tertiary phosphine oxides
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, (2008/06/13)
Tertiary phosphine oxides are prepared by the oxidation of tertiary phosphine sulfides with H2 O2 in a solvent composed of at least about 20% by weight, preferably at least about 50% by weight, of optionally halogenated, lower aliphatic carboxylic acids and/or their anhydrides; it is particularly preferred if the solvent is composed only of acetic acid. The reaction products are end products and intermediates in a variety of areas such as, for example, the sectors of plant protection and polymers.
