65164-89-8Relevant academic research and scientific papers
Alkali Metal Catalysed Double Hydrophosphorylation of Nitriles and Alkynes
Banerjee, Indrani,Harinath, Adimulam,Panda, Tarun K.
supporting information, p. 2224 - 2230 (2019/04/30)
Catalytic C–P and N–P bond formation via double hydrophosphorylation of nitriles with diphenylphosphane oxide using alkali metal precatalyst [MN(SiMe3)2] (M = Li, Na, K) is reported. The potassium congener was observed to be the most
BISPHOSPHINE OXIDE COMPOUND, BIS-THIO-PHOSPHINE COMPOUND, OR METHOD FOR PRODUCING BISPHOSPHINE COMPOUND
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Paragraph 0022; 0023; 0024, (2018/06/12)
PROBLEM TO BE SOLVED: To provide a general synthesis method of various bisphosphine compounds and derivatives thereof by using raw materials that are easily available and easy to handle. SOLUTION: A bisphosphine oxide compound, a bis-thio-phosphine compou
DOUBLE ADDITION OF PHOSPHINE OXIDE TO ALKYNE WITH BASE CATALYST
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Paragraph 0067; 0070, (2017/09/06)
PROBLEM TO BE SOLVED: To provide a method of synthesizing a phosphorus compound by double addition of phosphine oxide to alkyne with a base catalyst. SOLUTION: The present invention provides a method comprising the step of reacting alkyne and a phosphorus compound in an ether solvent in the presence of a catalytic amount of a base. The method of production according to the present invention (1) allows a reduction in remaining metal components in the product and (2) a reduction in production cost and (3) has an expanded scope of substrates in comparison with the conventional methods of production. Moreover, the obtained compounds may be used in flame retardants, lubricant additives, pharmaceutical intermediates, and catalyst raw materials. Furthermore, phosphine compounds that are obtained by reducing the compounds obtained by this reaction are compounds useful as ligands. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT
Air-induced double addition of P(O)-H bonds to alkynes: A clean and practical method for the preparation of 1,2-bisphosphorylethanes
Guo, Haiqing,Yoshimura, Aya,Chen, Tieqiao,Saga, Yuta,Han, Li-Biao
supporting information, p. 1502 - 1506 (2017/05/10)
An air-induced double addition of diphenyl phosphine oxide to various alkynes is reported. This reaction can proceed efficiently under metal- and solvent-free conditions, and is a clean and practically useful method for the preparation of the valuable 1,2
An efficient base-catalyzed double addition of H-phosphine oxides to alkynes
Yoshimura, Aya,Saga, Yuta,Sato, Yuki,Ogawa, Akiya,Chen, Tieqiao,Han, Li-Biao
supporting information, p. 3382 - 3384 (2016/07/11)
An efficient base-catalyzed double addition of H-phosphine oxides to alkynes is developed. In the presence of a catalytic amount of a base, the addition of various H-phosphine oxides to both aromatic and aliphatic alkynes took place efficiently to produce the corresponding bisphosphoryl compounds in excellent yields. This method provides an easy direct way to prepare bisphosphine oxides that are of high importance in organic synthesis.
The Reaction of the Diarylphosphine Oxide Anion with Oxiranes: a New Synthesis of 1,2-Ethylenebis(diarylphosphine oxides)
Wife, Richard L.,Oort, Aart B. van,Doorn, Johannes A. van,Leeuwen, Piet W. N. M. van
, p. 804 - 805 (2007/10/02)
In an unusual double-substitution reaction, the diarylphosphine oxide anion reacts with oxiranes to give bis(phosphine oxides) that can have functional groups on the aryl ring and/or the bridging carbons between the PO groups.
