Category: 13440-07-8

Electric Literature of 13440-07-8. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 13440-07-8, Name is Di(naphthalen-1-yl)phosphine oxide

Tailored Cobalt-Catalysts for Reductive Alkylation of Anilines with Carboxylic Acids under Mild Conditions

The first cobalt-catalyzed hydrogenative N-methylation and alkylation of amines with readily available carboxylic acid feedstocks as alkylating agents and H2 as ideal reductant is described. Combination of tailor-made triphos ligands with cobalt(II) tetrafluoroborate significantly improved the efficiency, thus promoting the reaction under milder conditions. This novel protocol allows for a broad substrate scope with good functional group tolerance, even in the presence of reducible alkenes, esters, and amides.

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Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

In an article, published in an article, once mentioned the application of 13440-07-8, Name is Di(naphthalen-1-yl)phosphine oxide,molecular formula is C20H15OP, is a conventional compound. this article was the specific content is as follows.Recommanded Product: 13440-07-8

PROCESS FOR PRODUCTION OF PHOSPHINE-BORANE COMPLEXES

A process for the production of phosphine-borane complexes represented by the general formula: or salts thereof: [wherein R1, R2 and R3 are each independently a hydrogen atom, a halogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group (with the proviso that R1 and R2 together with the adjacent phosphorus atom may form a 4- to 6-membered ring)], characterized by converting a compound represented by the general formula: in a solvent in the presence of a borane reagent: [wherein each symbol is as defined above].

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Reference£º
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13440-07-8,Di(naphthalen-1-yl)phosphine oxide,as a common compound, the synthetic route is as follows.

Add 2-chlorophenylacetylene (0.068 g, 0.5 mmol) to the reaction flask.Dinaphthylphosphorus (0.30 g, 1 mmol),CuBr2 (0.022 g, 0.1 mmol), di-tert-butyl peroxide(0.30 g, 2 mmol) and ethanol (2 mL),80oC response;TLC tracks the reaction until it is completely over;The crude product obtained after the completion of the reaction was separated by column chromatography (ethyl acetate: petroleum ether = 1:1) to give the desired product.(Yield 74%)., 13440-07-8

13440-07-8 Di(naphthalen-1-yl)phosphine oxide 23110917, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Patent; Nantong Textile Silk Industrial Technology Institute; Soochow University (Suzhou); Zou Jianping; Tao Zekun; Lv Shuaishuai; Li Chengkun; Li Jianan; (12 pag.)CN109096336; (2018); A;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13440-07-8,Di(naphthalen-1-yl)phosphine oxide,as a common compound, the synthetic route is as follows.

151 mg (0.5 mmol) of bis(1-naphthyl)phosphorus,115.5 mg (0.75 mmol) of 4,4-dimethoxy-2,5-cyclohexadien-1-one,0.05 mmol of water and 1.0 mL of toluene were placed in a Schlenk tube under nitrogen, and the reaction was stirred at 100 C for 12 hours. After completion of the reaction, it was purified by column chromatography, and the isolated yield was 64%., 13440-07-8

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Reference£º
Patent; Hunan Institute of Science and Technology; Xiong Biquan; Wang Gang; Tang Kewen; Xu Weifeng; (8 pag.)CN109096331; (2018); A;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13440-07-8,Di(naphthalen-1-yl)phosphine oxide,as a common compound, the synthetic route is as follows.

0.5 mmol of naphthyl diphenylphosphine oxide, 0.25 mmol of potassium carbonate and 0.75 mmol of methyl thiophenol were weighed into 10 mLThe flask was stirred at room temperature for 6 hours. After the reaction, the tetrahydrofuran solvent was removed using a rotary evaporator and the residue was dissolved in lmL of methylene chloride. The residue was purified by silica gel column chromatography to obtain Color transparent liquid, the yield was 87%., 13440-07-8

13440-07-8 Di(naphthalen-1-yl)phosphine oxide 23110917, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Patent; Guangdong University of Technology; Yan Xinxing; Chen Qian; Wen Chunxiao; Zeng Jiekun; Huang Yulin; Wang Xiaofeng; Chen Ziming; Huo Yanping; Du Zhiyun; Zhang Kun; (29 pag.)CN106928272; (2017); A;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

13440-07-8, Di(naphthalen-1-yl)phosphine oxide is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Into a round bottom flask was added p-(difluoroiodo)toluene (1, 0.17 mmol, 1.1 equiv) and PhCl (0.25 mL, 0.6M), followed by the secondary phosphine oxide (3, 0.15 mmol, 1.0 equiv). The resulting reaction mixture was stirred at 60 C in a pre-heated oil bath for 10 minutes, by which time TLC analysis indicated consumption of the starting material. The crude reaction mixture was cooled to room temperature and directly purified by column chromatography (ether/pentane) without prior concentration., 13440-07-8

As the paragraph descriping shows that 13440-07-8 is playing an increasingly important role.

Reference£º
Article; Eljo, Jasmin; Murphy, Graham K.; Tetrahedron Letters; vol. 59; 31; (2018); p. 2965 – 2969;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

13440-07-8, Di(naphthalen-1-yl)phosphine oxide is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Add 4-trifluoromethylphenylacetylene to the reaction flask(0.085 g, 0.5 mmol), dinaphthylphosphoric acid(0.30 g, 1 mmol), CuI2 (0.032 g, 0.1 mmol),Phenylisopropyl hydroperoxide (0.46 g, 3 mmol),And N,N-dimethylformamide (2 mL),70oC reaction;TLC tracks the reaction until it is completely over;The crude product obtained after the completion of the reaction was separated by column chromatography (ethyl acetate: petroleum ether = 1:1) to give the desired product.(Yield 82%)., 13440-07-8

The synthetic route of 13440-07-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Nantong Textile Silk Industrial Technology Institute; Soochow University (Suzhou); Zou Jianping; Tao Zekun; Lv Shuaishuai; Li Chengkun; Li Jianan; (12 pag.)CN109096336; (2018); A;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

13440-07-8, Di(naphthalen-1-yl)phosphine oxide is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

151.2 mg (0.5 mmol) of di(naphthalen-1-yl)phosphine oxide, 147.1 mg (0.5 mmol) 4-phenylmethylene-2,6-di-tert-butyl-2,5-cyclohexadien-1-one, 0.025 mmol of cesium carbonate was added to a Schlenk tube under nitrogen, and added under nitrogen. 1.0 mL of acetonitrile was stirred at 40 C for 6 hours. After the reaction is completed, it is purified by column chromatography and the target product ((3,5-di-tert-butyl-4-hydroxyphenyl)(phenyl)methyl)bis(1-naphthyl)phosphorus oxide The isolated yield was 83%., 13440-07-8

As the paragraph descriping shows that 13440-07-8 is playing an increasingly important role.

Reference£º
Patent; Hunan Institute of Science and Technology; Xiong Biquan; Wang Gang; Xu Weifeng; Tang Kewen; (9 pag.)CN109456362; (2019); A;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13440-07-8,Di(naphthalen-1-yl)phosphine oxide,as a common compound, the synthetic route is as follows.

General procedure: Into a round bottom flask was added (dichloroiodo)benzene (2, 0.15 mmol, 1.02 equiv), DCM (0.25 mL, 0.6M), and to this was added excess ethanol (0.1 mL, 10 equiv), followed by the secondary phosphine oxide (0.15 mmol, 1.0 equiv,). The reaction mixture was stirred at room temperature for the indicated length of time, then concentrated in vacuo and purified by column chromatography., 13440-07-8

The synthetic route of 13440-07-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Eljo, Jasmin; Murphy, Graham K.; Tetrahedron Letters; vol. 59; 31; (2018); p. 2965 – 2969;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13440-07-8,Di(naphthalen-1-yl)phosphine oxide,as a common compound, the synthetic route is as follows.

In a nitrogen atmosphere, in a glove box, Add 0.01 mmol of nickel chloride and 0.52 mmol of bis-naphthylphosphine, respectively. 1.5 equivalents of t-BuOK (potassium tert-butoxide), sequentially added to the Schlenk reaction tube, Subsequently, 0.4 mmol of phenylpropanonitrile compound was added,Vacuuming and backfilling with nitrogen; under a nitrogen atmosphere, The solvent was added to 3 ml of 1,4-dioxane, and the reaction was continued at 120 C for 16 h. After the reaction is completed, it is cooled to room temperature and separated by column chromatography. That is the target product: Phenylethylnaphthylphosphine oxide with a yield of 99%., 13440-07-8

The synthetic route of 13440-07-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Hunan University; Zhang Jishu; Qi Tafamingrenqingqiubugongkaixingming; (13 pag.)CN109438512; (2019); A;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate