2129-29-5Relevant academic research and scientific papers
Synthesis of tertiary phosphine oxides by alkaline hydrolysis of quaternary phosphonium zwitterions using excess t-BuOK and stoichiometric water
Zhong, Chun-Hong,Huang, Wenhua
supporting information, p. 1537 - 1546 (2021/01/07)
Hydrolysis of quaternary arylphosphonium zwitterions bearing COO? and those in situ generated from the corresponding salts bearing Ac or OH at the aryl ring by using excess t-BuOK and stoichiometric water affords tertiary arylphosphine oxides in moderate to excellent yield, in contrast to hydrolysis of these zwittertion or salts in aqueous NaOH that mainly provides phosphine oxides with the loss of the aryl group. Under the t-BuOK/water conditions, hydrolysis of carbonyl stabilized ylides Ph3P = CHCOR (R = Ph, Me, and OEt), which partially exist as phosphonium enolates, prefers to produce Ph2P(O)CH2COR. Further reduction of Ph2P(O)CH2COMe by PhSiH3 allows the preparation of Ph2PCH2COMe in 43% yield.
PHOSPHORYL DERIVATIVES WITH NEW STRUCTURES AND ORGANIC ELECTRONIC DEVICES USING THE SAME
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, (2017/05/12)
The present invention relates to a phospholy derivative with a new structure and an organic electronic device using the same, and more particularly, to a phosphine derivative with a new structure having a structure of a phosphine oxide and an oxazole, an
Catalyst-free P-C coupling reactions of halobenzoic acids and secondary phosphine oxides under microwave irradiation in water
Jablonkai, Erzsébet,Keglevich, Gy?rgy
, p. 1638 - 1640 (2015/03/14)
4-Bromo and 3-bromobenzoic acids along with 4-iodobenzoic acid underwent P-C coupling reactions with diarylphosphine oxides in the absence of any catalyst in water as the solvent under microwave irradiation. The phosphinoylbenzoic acids obtained were conv
Copper-catalyzed P-arylation via direct coupling of diaryliodonium salts with phosphorus nucleophiles at room temperature
Xu, Jian,Zhang, Pengbo,Gao, Yuzhen,Chen, Yiyin,Tang, Guo,Zhao, Yufen
, p. 8176 - 8183 (2013/09/12)
A new method for copper-catalyzed P-C bond formation through reaction of phosphorus nucleophiles with diaryliodonium salts at room temperature is described. Most target products are obtained with this method in high yields within a short reaction time of 10 min. It can be easily adapted to large-scale preparations. When unsymmetrical iodonium salts are employed, nucleophilic substitution occurs preferentially on the sterically hindered aromatic ring or the more electron-deficient ring.
SYNTHESIS OF WATER-SOLUBLE PHOSPHINE OXIDES BY PD/C-CATALYZED P-C COUPLING IN WATER
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Page/Page column 8, (2013/08/28)
Cross-coupling between diphenylphosphine oxide and halogenated benzoic acids catalyzed by Pd/C in water is a green, simple and fast protocol to obtain water-soluble tertiary phosphine oxides without the addition of ligands and additives. Low reaction times, microwave irradiation, and high substrate scope make this method general and excellent for lab- and large-scale synthesis without the need to use organic solvents for neither reaction nor workup.
Synthesis of water-soluble phosphine oxides by Pd/C-catalyzed P-C coupling in water
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Page/Page column 5, (2013/08/28)
Cross-coupling between diphenylphosphine oxide and halogenated benzoic acids catalyzed by Pd/C in water is a green, simple and fast protocol to obtain water-soluble tertiary phosphine oxides without the addition of ligands and additives. Low reaction time
Synthesis of water-soluble phosphine oxides by Pd/C-catalyzed P-C coupling in water
Rummelt, Stephan M.,Ranocchiari, Marco,Van Bokhoven, Jeroen A.
supporting information; experimental part, p. 2188 - 2190 (2012/07/14)
Cross-coupling between diphenylphosphine oxide and halogenated benzoic acids catalyzed by Pd/C in water is a green, simple, and fast protocol to obtain water-soluble tertiary phosphine oxides without the addition of ligands and additives. Low reaction times and microwave irradiation make this method general and excellent for laboratory and large-scale synthesis without the need to use organic solvents in reactions and workup.
Thiophosphoryl-, thiophosphoryloxy-, and thiophosphorylamino-benzene derivatives as novel classes of hybrid pincer ligands
Kozlov, Vladimir A.,Aleksanyan, Diana V.,Vasilev, Andrei A.,Odinets, Irina L.
scheme or table, p. 626 - 637 (2011/06/22)
The synthetic approaches to novel families of SCE (E = S',N,O) hybrid pincertype ligands bearing thophosphoryl, thiophosphoryloxy, and thiophosphorylamino groups in various combinations with thiophosphoryl-, thiocarbamoyl-, and imine- (including that of benzothiazole ring) donating functions have been developed. All of the ligands readily undergo direct cyclometallation (metal = Pd(II), Pt(II)) to afford 5,5- or 5,6-membered pincer complexes. Palladium complexes displayed from high to excellent catalytic performance in the Suzuki cross-coupling reaction of aryl bromides and phenylboronic acid and the higher asymmetry for a complex served as a factor of its higher catalytic activity. Copyright Taylor & Francis Group, LLC.
