Tag: M.W:400-500

Droghetti, Andrea published the article 《Oxygen doping and polaron magnetic coupling in Alq3 films》. Keywords: oxygen doping aluminum film polaron magnetic coupling property.They researched the compound: Aluminum triquinolin-8-olate( cas:2085-33-8 ).Safety of Aluminum triquinolin-8-olate. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:2085-33-8) here.

The understanding of the Physics underlying the performances of spin-valve devices comprising organic semiconductors is still incomplete. According to some recent models, spin transport takes place in an impurity band inside the fundamental gap of the organic semiconductor. This seems to be confirmed by recent experiments performed with La0.7Sr0.3MnO3/Alq3/AlOx/Co devices. The reported results suggest a possible correlation between the magnetoresistance and the variable oxygen doping in the Alq3 spacer. In this paper we investigate the electronic and magnetic properties of O2 mols. and ions in Alq3 films by means of first-principles calculations to establish whether oxygen plays any important role for spin transport in La0.7Sr0.3MnO3/Alq3/AlOx/Co devices. The conclusion is that it does not. In fact, we show that O2 mols. do not form an impurity band and there is no magnetic interaction between them. In contrast, we suggest that spin-transport may be enabled by the direct exchange coupling between Alq-3 ions.

Here is a brief introduction to this compound(2085-33-8)Safety of Aluminum triquinolin-8-olate, if you want to know about other compounds related to this compound(2085-33-8), you can read my other articles.

Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called RP-HPLC method development and validation for the simultaneous estimation of imidapril HCl and amlodipine besylate in bulk and tablet, published in 2013-02-28, which mentions a compound: 89396-94-1, mainly applied to imidapril hydrochloride amlodipine besylate determination reversed phase HPLC, Recommanded Product: 89396-94-1.

A simple reverse phase liquid chromatog. method was developed and subsequently validated for simultaneous determination of imidapril HCl and amlodipine besylate in combination. The separation was carried out using a mobile phase consisting of 0.01M potassium dihydrogen phosphate buffer (adjusted with 0.1% phosphoric acid to pH 3.0), acetonitrile and methanol in the ratio of 50: 35: 15. The column used was Lichrospher C18, 5μm, 25 cm × 4.6 mm maintained at 40°C with flow rate of 1 mL / min using PDA detection at 210 and 237 nm for imidapril HCl and amlodipine besylate resp. The described method was linear over a concentration range of 10-100 μg/mL and 14-140 μg/mL for the assay of imidapril HCl and amlodipine besylate resp. The retention times of imidapril HCl and amlodipine besylate were found to be 4.3 and 6.7 min resp. Results of anal. were validated statistically and by recovery studies. The limit of detection (LOD) and limit of quantification (LOQ) for imidapril HCl and amlodipine besylate were found to be 0.13 and 0.28 μg/mL and 0.24 and 1.47 μg/mL resp. The results of the study showed that the proposed RP-HPLC method is simple, rapid, precise and accurate, which is useful for the routine determination of amlodipine besylate and imidapril HCl bulk drug and in its pharmaceutical dosage form.

Here is a brief introduction to this compound(89396-94-1)Recommanded Product: 89396-94-1, if you want to know about other compounds related to this compound(89396-94-1), you can read my other articles.

Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

Chloro[l ,3-bis(2,6-di-i-propylphenyl)imidazol-2-ylidene]copper(I) (487.59 mg, 0.25 mmol) and silver triflate (64.2 mg, 0.25 mmol) were mixed under nitrogen in 25 mL flask and 10 mL of dry THF were added. Reaction mixture was stirred at RT for 30 minutes. Solution of 1 ,2-bis(diphenylphosphino)benzene (1 1 1.6 mg, 0.25 mmol) in dry THF (5 mL) was added. Reaction mixture was stirred at RT overnight. Resulting mixture was filtered through Celite and solvent was evaporated on rotovap. Recrystallization from CH2CI2 by vapor diffusion of Et20 gave 130 mg (49.6%) of white needle crystals. Structure confirmed by 1H-NMR spectrum of [(IPR)Cu(dppbz)]OTf (CDCb, 400MHz).

The chemical industry reduces the impact on the environment during synthesis,578743-87-0,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,I believe this compound will play a more active role in future production and life.

Reference£º
Patent; THE UNIVERSITY OF SOUTHERN CALIFORNIA; THOMPSON, Mark; DJUROVICH, Peter; KRYLOVA, Valentina; WO2011/63083; (2011); A1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

General procedure: To a stirred solution of imidazolium salts (0.045 mmol), NaOtBu (4.3 mg, 0.045 mmol) and CuCl (4.5mg, 0.045 mmol) was added THF (0.5 mL, 0.09 M) at 30 oC under argon atmosphere. After stirring for 2 h, the solution of K+[CF3B(OMe)3]- (63.5 mg, 0.3 mmol, 6.0 equiv) in DMF (0.5 mL) was added dropwise. Then the mixture was kept stirring at 30 oC for 10 h. After that, the reaction was quenched with water. Aqueous layer was extracted with EtOAc (15 mL x 3), and the combined organic layers was washed with brine, dried over Na2SO4 and concentrated under reduced pressure. Then the crude product was purified by column chromatography on silica gel to give the imidazolinone 3b-d.

The chemical industry reduces the impact on the environment during synthesis,578743-87-0,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,I believe this compound will play a more active role in future production and life.

Reference£º
Article; Zeng, Wei; Wang, Enyu; Qiu, Rui; Sohail, Muhammad; Wu, Shaoxiang; Chen, Fu-Xue; Journal of Organometallic Chemistry; vol. 743; (2013); p. 44 – 48;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

In a dry double-mouth bottle to place Ir – 3 (0.0796 g, 0.1 mmol), CuClNHC (0.0488 g, 0.1 mmol), vacuum pumping and nitrogen cycle three times, then the nitrogen flow by adding 10 ml ethanol, stirring reflux reaction for 4 hours, cooling to room temperature, then added potassium hexafluorophosphate (0.184 g, 1 mmol), stirring at the room temperature reaction 2 hours, filtered, concentrated filtrate, ethanol: dichloromethane=1:10 column, get the orange solid 0.069 g, and the yield is 50%.

The chemical industry reduces the impact on the environment during synthesis,578743-87-0,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,I believe this compound will play a more active role in future production and life.

Reference£º
Patent; Jiangsu University Of Science And Technology; Shi Chao; Li Qiuxia; Zhang Xinghua; (24 pag.)CN108690096; (2018); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

In a dry double-mouth bottle to place Ir – 1 (0.0695 g, 0.1 mmol), CuClNHC (0.0488 g, 0.1 mmol), vacuum pumping and nitrogen cycle three times, then the nitrogen flow by adding 10 ml ethanol, stirring reflux reaction for 4 hours, cooling to room temperature, then added potassium hexafluorophosphate (0.184 g, 1 mmol), stirring at the room temperature reaction 2 hours, filtered, concentrated filtrate, ethanol: dichloromethane=1:10 column, get the orange solid 0.064 g, and the yield is 50%.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, 578743-87-0

Reference£º
Patent; Jiangsu University Of Science And Technology; Shi Chao; Li Qiuxia; Zhang Xinghua; (24 pag.)CN108690096; (2018); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

As a common heterocyclic compound, it belongs to copper-catalyst compound, name is [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, and cas is 578743-87-0, its synthesis route is as follows.

1) 0.2 mmol (NHC) CuCl was dissolved in 3 ml of dry THF in a 20 ml dry glass bottle to form a suspension,The glass was then placed in a glove box refrigerator and frozen at -35 C for 1 h;2) 42.3 mg (0.95 eq) [tBu3PN] Li was dissolved in 3 ml of dry THF in another 20 ml dry glass vial,And then put the glass bottle into the glove box refrigerator,Frozen at -35 C for 1 h;3) Slowly drop the [tBu3PN] Li solution of 2) in a cold (NHC) CuCl suspension in 1) with stirring,After completion of the dropwise addition, the mixture was stirred in a glove box at room temperature for 13 h;4) After completion of the reaction, the solvent (THF) was dried in vacuo to give an oily slag,Followed by the addition of 7 ml of n-pentane or n-hexane to give a suspension,And stirred at room temperature for 15 min,And then through the neutral diatomite short pad filter to remove insoluble matter,The filtrate was placed in a refrigerator and cooled at -35 C for 3-4 h,And then filtered through neutral diatomaceous earth,And then frozen the filtrate,Repeated several times to obtain a clear n-pentane or n-hexane solution,The clear solution was dried to give a white crystalline solid,Ie complex A or B.

578743-87-0, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,578743-87-0 ,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; Shan, Xida; Bai, Tao; Yang, Yanhui; (31 pag.)CN106243132; (2016); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

It is a common heterocyclic compound, the copper-catalyst compound, [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0 its synthesis route is as follows.

In a dry double-mouth bottle to place Pt – 3 (0.0594 g, 0.1 mmol), CuClNHC (0.0488 g, 0.1 mmol), vacuum pumping and nitrogen cycle three times, then the nitrogen flow by adding 10 ml ethanol, stirring reflux reaction for 4 hours, cooling to room temperature, then added potassium hexafluorophosphate (0.184 g, 1 mmol), stirring at the room temperature reaction 2 hours, filtered, concentrated filtrate, ethanol: dichloromethane=1:10 column, get the orange solid 0.047 g, and the yield is 40%.

578743-87-0, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,578743-87-0 ,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; Jiangsu University Of Science And Technology; Shi Chao; Li Qiuxia; Zhang Xinghua; (24 pag.)CN108690096; (2018); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

2-(2-Pyridyl)benzimidazole (78.1 mg, 0.4 mmol) was dissolved in 10 mL of dry THF under N2 and this solution was transferred via cannula to suspension of sodium hydride (17.6 mg, 0.44 mmol, 60% in mineral oil) in dry THF. Reaction mixture was stirred at RT for 1 h and then chloro[l,3-bis(2,6-di-i-propylphenyl)imidazol-2- ylidene]copper(I) (195.1 mg, 0.4 mmol) was added. Reaction mixture was stirred at RT for 3 h. The resulting mixture was filtered through Celite and solvent was removed by rotary evaporation. Recrystallization by vapor diffusion of Et20 into a CH2C12 solution of product gave 154 mg (59.5%>) of dark yellow crystals. Anal, calcd. for C39H44CuN5: C, 72.47; H, 6.86; N, 10.48; Found: C, 72.55; H, 6.94; N, 10.84.

The chemical industry reduces the impact on the environment during synthesis,578743-87-0,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,I believe this compound will play a more active role in future production and life.

Reference£º
Patent; THE UNIVERSITY OF SOUTHERN CALIFORNIA; THOMPSON, Mark; DJUROVICH, Peter; KRYLOVA, Valentina; WO2011/63083; (2011); A1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

In a glove box, IPrCuCl (224 mg, 0.46 mmol) and potassium tris(1-pyrazolyl)borohydride (127 mg, 0.50 mmol) in THF in a 40 mixture was stirred at room temperature for 3 hours dongan. Filtered through a plug of Celite and the reaction mixture after the evaporation of the solvent under reduced pressure to give product as a white powder IPrCuTp

The chemical industry reduces the impact on the environment during synthesis,578743-87-0,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,I believe this compound will play a more active role in future production and life.

Reference£º
Patent; University Of Southern California; Thompson, Mark E; Hamz, Rasya; Durovitch, Peter I; (50 pag.)KR2015/26932; (2015); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”