Tag: M.W=200-300

Application of 98946-18-0, Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 98946-18-0, Name is tert-Butyl trichloroacetimidate, SMILES is CC(OC(C(Cl)(Cl)Cl)=N)(C)C, belongs to chlorides-buliding-blocks compound. In a article, author is Minh Trang Hoang, introduce new discover of the category.

Fabrication of thin film nanocomposite nanofiltration membrane incorporated with cellulose nanocrystals for removal of Cu(II) and Pb(II)

Thin-film nanocomposite nanofiltration (TFN) membranes were prepared via interfacial polymerization between polyethyleneimine (PEI) and trimesoyl chloride (TMC) with the incorporation of cellulose nanoparticles (CNCs), for the removal of Cu(II) and Pb(II) from aqueous environment. Water contact angle measurements and pure water test showed that the surface hydrophilicity of TFN membranes was improved with the increment of CNCs concentration. Successful deposition of CNCs on the membrane surface was investigated by FTIR analysis. The SEM and AFM results showed that the incorporation of CNCs resulted in a greater surface roughness and a higher surface area to the membranes. The results indicated that the water permeance of TFN membranes increased by 70% compared to a pristine TFC membrane with the CNCs loading mass of 5.5 mu g/cm(2), and also exhibited the acceptable and competitive removal efficiency for toxic heavy metal ions (CuSO4 98.0%, CuCl2 96.5% and PbCl2 90.8%). To the best of our knowledge, this is the pioneering work to study the combination between CNCs and positively charged thin film composite nanofiltration membranes fabricated by interfacial polymerization of polyethyleneimine (PEI) and trimesoyl chloride (TMC) on polyethersulfone (PES) supporting membrane for the rejection of Cu(II) and Pb(II). (C) 2020 Elsevier Ltd. All rights reserved.

Application of 98946-18-0, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about 98946-18-0 is helpful to your research.

Reference of 81927-55-1, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 81927-55-1, Name is Benzyl 2,2,2-trichloroacetimidate, SMILES is ClC(Cl)(Cl)C(=N)OCC1=CC=CC=C1, belongs to chlorides-buliding-blocks compound. In a article, author is Champaka, Gurudevaru, introduce new discover of the category.

Monomeric zinc ferrocene carboxylate [Zn(FcCOO)(3,5-dmp)(2)Cl] derived from 3,5-dimethylpyrazole: structural, optical, electrochemical and antimicrobial studies

Monomeric zinc ferrocene carboxylate [Zn(FcCOO)(3,5-dmp)(2)Cl] (1) has been synthesized from a reaction between the zinc chloride, sodium salt of ferrocene carboxylic acid (FcCOONa) and 3,5-dimethylpyrazole (3,5-dmp) at room temperature. Compound 1 was further characterized by elemental analysis, H-1 NMR, FT-IR, absorption, emission spectroscopic techniques, and molecular structure was confirmed by single-crystal X-ray diffraction studies. The molecular structure of compound 1 crystallized in triclinic system with P (1) over bar space group and the central Zn2+ ion is in a distorted tetrahedral geometry with -FeN2OCl coordination environment. Compound 1 was further stabilized with the aid of inter and intramolecular hydrogen bonding and pi-pi interaction between cyclopentadienyl ring of ferrocene and aromatic heterocyclic five membered 3,5-dimethylpyrazole. Compound 1 exhibits broad emission band, indicating ligandto-metal charger transfer (LMCT) or metal-to-ligand charger transfer (MLCT) nature. The electrochemical property of compound 1 revealed that one-electron anodic and cathodic peaks corresponding to the redox responsible of ferrocene/ferrocenium (FeII <-> Fe-III) moiety. Among the different strains of bacteria, the antibacterial activity of compound 1 showed comparatively a significant activity against gram negative bacterium Proteus vulgaris. (C) 2020 Elsevier B.V. All rights reserved.

Reference of 81927-55-1, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 81927-55-1.

Reference of 56961-77-4, A common heterocyclic compound, 56961-77-4, name is 1-Bromo-2,3-dichlorobenzene, molecular formula is C6H3BrCl2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Intermediate 1-1 was synthesized according to the following reaction formula. To a 2 L flask was added 1-bromo-2,3-dichlorobenzene (55.0 g, 0.243 mol) and sodium tert-butoxide (72.5 g, 0.755 mol) with 700 mL of toluene and the mixture was refluxed for one hour and stirred. After cooling to room temperature, aniline (45.1 g, 0.485 mol) was added and the temperature was raised. After adding 2,2′-bis (diphenylphosphino) -1,1′-binaphthalene (rac-BINAP) (6.06 g, 9.74 mmole), tris (dibenzylideneacetone) dipalladium (0) (4.46 g, 0.284 mol) dissolved in 30 mL of toluene was slowly added dropwise. After completion of the reaction, the reaction mixture was cooled to room temperature, extracted with ethyl acetate and water, and the obtained organic layer was treated with anhydrous magnesium sulfate, filtered and concentrated to obtain the desired product. Intermediate 1-1 (36.0 g, yield 50%) was obtained by column chromatography using ethyl acetate and hexane.

The synthetic route of 56961-77-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; LG Chem, Ltd.; Gu Gi-dong; Lee Gi-gon; Kim Gong-gyeom; Kim Hyeong-seok; Hwang Seong-seok; Lee Sang-u; (28 pag.)KR2019/37174; (2019); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 56131-47-6, name is 1-Bromo-2-chloro-3-(trifluoromethyl)benzene, A new synthetic method of this compound is introduced below., Application In Synthesis of 1-Bromo-2-chloro-3-(trifluoromethyl)benzene

l-Bromo-2-chloro-3-trifluoromethyl-benzene D-I-Ia (4.9 g, 18.9 mmol) is taken up in cone, sulphuric acid (20 mL), cooled to 0 0C and combined with an ice-cold mixture of cone, nitric acid (25 mL) and cone, sulphuric acid (20 mL). After 3 h stirring at RT the reaction mixture is poured onto ice water, extracted with EtOAc, the organic phase is washed with sat. NaHCO3 solution and sat. NaCl solution, dried on Na2SO4, filtered and evaporated down using the rotary evaporator and the intermediate product Z-9a obtained (HPLC-MS: tRet. = 2.14 min) is further reacted directly.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; BOEHRINGER INGELHEIM INTERNATIONAL GMBH; WO2009/3999; (2009); A2;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Related Products of 13526-66-4, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 13526-66-4, name is 3-Bromo-6-chloroimidazo[1,2-b]pyridazine, This compound has unique chemical properties. The synthetic route is as follows.

13.9 g (59.8 mmol) 3-bromo-6-chloro-imidazo[1 ,2-b]pyridazine were suspended in 508 mL 1 ,4-dioxane. 10.1 g (62.8 mmol) 2-benzofuranylboronic acid, 2.76 g (2.29 mmol) tetrakis(tn’phenylphosphino)palladium-(0) and 19.0 g (179 mmol) sodium carbonate were added. The obtained mixture was heated to 100C for 24 h. 400 mL of a saturated aqueous ammonium chloride solution were added. The obtained mixture was extracted with ethyl acetate. The combined organic layers were washed with brine and dried over magnesium sulfate. After evaporation of the solvent, the obtained solid material was digested in 40 mL of a mixture of dichloromethane and methanol (8:2), filtered off and dried in vacuo to yield 5.42 g (44%) of the title compound as solid material. 1H-NMR (300MHz, DMSO-d6): delta [ppm]= 7.23 – 7.40 (m, 2H), 7.51 (d, 1 H), 7.59 – 7.67 (m, 2H), 7.77 (d, 1 H), 8.33 – 8.40 (m, 2H). LCMS (Method 1 ): Rt = 1.35 min; MS (ESIpos) m/z = 270 [M+H]+.

The chemical industry reduces the impact on the environment during synthesis 3-Bromo-6-chloroimidazo[1,2-b]pyridazine. I believe this compound will play a more active role in future production and life.

Reference:
Patent; BAYER INTELLECTUAL PROPERTY GMBH; EIS, Knut; PUeHLER, Florian; ZORN, Ludwig; SCHOLZ, Arne; LIENAU, Philip; GNOTH, Mark, Jean; BOeMER, Ulf; GUeNTHER, Judith; WO2013/41634; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 50638-46-5, name is 4-Bromo-3-chloroanisole, belongs to chlorides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 50638-46-5, HPLC of Formula: C7H6BrClO

Step 1 Ethyl 2?-chloro-4?-methoxybiphenyl-2-carboxylate [0117] 1-bromo-2-chloro-4-methoxybenzene (44.3 g) was dissolved in toluene (220 ml), ethyl 2-(4,4,5,5-tetramethyl[1,3,2]dioxaborolan-2-yl)benzoate (60.8 g), water (132 ml), sodium hydrogen carbonate (33.6 g) and dichlorobis(triphenylphosphine)palladium(II) (2.8 g) were added, and the mixture was stirred at an oil bath temperature of 120 C. for 7 hr. To the reaction mixture was added ethyl 2-(4,4,5,5-tetramethyl[1,3,2]dioxaborolan-2-yl)benzoate (5.2 g), and the mixture was further stirred for 2 hr. The reaction mixture was cooled to room temperature, toluene (100 ml) and water (200 ml) were added, and the mixture was stirred overnight. To the reaction mixture was added activated carbon (3 g), and the mixture was further stirred for 1 hr. The insoluble material was filtered off through celite, and the insoluble material was washed with toluene (100 ml) and water (200 ml). The obtained filtrates were combined to allow for layer separation. The obtained organic layer was washed with water (100 ml), and the solvent was evaporated to give the title compound (67.7 g). [0119] 1H-NMR (400 MHz, DMSO-D6) delta: 7.88-7.86 (1H, m), 7.63 (1H, td, J=7.6, 1.4 Hz), 7.51 (1H, td, J=7.6, 1.4 Hz), 7.27 (1H, dd, J=7.6, 0.9 Hz), 7.18 (1H, d, J=8.6 Hz), 7.06 (1H, d, J=2.6 Hz), 6.95 (1H, dd, J=8.6, 2.6 Hz), 4.01 (2H, m), 3.80 (3H, s), 0.96 (3H, t, J=7.1 Hz).

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, 4-Bromo-3-chloroanisole, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; MOTOMURA, Takahisa; MATSUO, Takuya; SHOMI, Gakujun; INOUE, Masafumi; US2015/25120; (2015); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 14862-52-3, name is 3,5-Dibromochlorobenzene, belongs to chlorides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 14862-52-3, COA of Formula: C6H3Br2Cl

Synthesis of Intermediate I-6 (0251) 1,3-dibromo-5-chlorobenzene (100 g, 370 mmol) was dissolved in THF (2 L) in a nitrogen environment, phenylboronic acid (47.3 g, 388 mmol) and tetrakis(triphenylphosphine)palladium (Pd(PPh3)4) (1.5 g, 1.36 mmol) were added thereto, and the mixture was stirred. Potassium carbonate (K2CO3) (127 g, 925 mmol) saturated in water was added thereto, and the resulting mixture was heated and refluxed at 80 C. for 12 hours. When the reaction was complete, water was added to the reaction solution, the mixture was extracted with dichloromethane (DCM), and an extract therefrom was filtered and concentrated under a reduced pressure after removing moisture with anhydrous MgSO4. The obtained residue was separated and purified through flash column chromatography to obtain an intermediate I-6 (49 g, 50%). (0252) HRMS (70 eV, EI+): m/z calcd for C12H8BrCl: 265.9498, found: 266 Elemental Analysis: C, 54%; H, 3%

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3,5-Dibromochlorobenzene, and friends who are interested can also refer to it.

Reference:
Patent; SAMSUNG SDI CO., LTD.; OH, Jaejin; KANG, Giwook; KANG, Eui Su; KIM, Youngkwon; KIM, Younhwan; KIM, Hun; PARK, Jaehan; YU, Eun Sun; JUNG, Ho Kuk; CHO, Pyeongseok; (174 pag.)US2017/98778; (2017); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

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. 328-72-3, name is 3,5-Bis(trifluoromethyl)chlorobenzene belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. name: 3,5-Bis(trifluoromethyl)chlorobenzene

50L clean glass vessel, dried in a stream of nitrogen was added 20kg mesitylene, open stirring, degassed with nitrogen purge 15min, was added under stirring 5.0kg3,5- bis-trifluoromethyl-chlorobenzene (20.1mol), 2.5kg cyano acetate (21.0mol), 8.0g of allyl palladium chloride dimer (0.0217mol, 0.22mol%), 27g2- dicyclohexyl phosphino-2 ‘, 6’-dimethoxy biphenyl (0.066mol , 0.66mol%); under nitrogen flow, the temperature of the reaction system was gradually raised to 145 20h the reaction, the reaction system was then lowered to room temperature, the reaction was filtered to remove sodium chloride, and the filtrate recovery spin dry mesitylene, and concentrated to give 5.5kg the residue is 2- (3,5-bis-trifluoromethylphenyl) acetonitrile crude product, detecting the GC purity was 92%, a yield of 81%.

The synthetic route of 328-72-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Hefei Leaf Biotechnology Limited; Deng, Jin; Fu, Yao; Wang, Peng; Ding, Fan; Xu, Qiang; Yu, Sanxi; Ding, Feijiao; Wujiang, Jiang; (9 pag.)CN105541593; (2016); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 328-84-7 as follows. COA of Formula: C7H3Cl2F3

(a) 1,3-Bis(2-chloro-alpha,alpha,alpha-trifluoro-p-tolyloxy)benzene A solution of potassium hydroxide (3.26 g. 0.05 mole, 85%) in water (~3 g.) is added slowly dropwise to a solution of resorcinol (2.75 g. 0.025 mole) and 3,4-dichloro-alpha,alpha, alpha-trifluorotoluene (10.75 g. 0.05 mole) in sulfolane (l25 ml) at 150-160 C., with stirring. When the addition is complete, the strongly colored reaction mixture is stirred at 150-160 C. overnight, then cooled, diluted with benzene (200 ml), and washed cautiously with water (700 ml). Hexane (200 ml) is added and the mixture washed with water (600 ml), dilute sulfuric acid (600 ml), dilute sodium hydroxide solution (600 ml), and water (600 ml), dried, and the solvent removed to give 1,3-bis(2-chloro-alpha,alpha,alpha-trifluoro-p-tolyloxy)benzene (8.6 g. 65%) b.p. 160-70 C./0.1 mm.

According to the analysis of related databases, 328-84-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Rohm and Haas Company; US4419123; (1983); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 329944-72-1, name is 3-Bromo-5-chlorotoluene, A new synthetic method of this compound is introduced below., category: chlorides-buliding-blocks

Under a nitrogen atmosphere, a 5 L dry and clean four-neck round bottom flask was charged with diisopropylamine (72.8 g, 0.72 mol, 1.06 eq) and 1500 mL of anhydrous tetrahydrofuran, and the temperature was reduced to -70 C.Add n-butyllithium solution (272mL, 2.5M, 0.68mol, 1.0eq), and reduce the temperature to -70 with stirring.Slowly add D-2 (139g, 0.68mol, 1.0eq) and maintain the reaction for 1h after the addition.Slowly add iodine-tetrahydrofuran solution (172g iodine / 300ml THF, 0.68mol, 1.0eq),After the addition, the reaction was maintained for 1 h.The temperature was slowly raised to room temperature, and the reaction was monitored by HPLC for completion.The reaction was quenched with 500 mL of 5% Na2S2O3 solution, and extracted with 2 L of methyl tert-butyl ether. The organic phase was washed with 1500 mL of saturated brine, dried over anhydrous sodium sulfate, concentrated under reduced pressure to obtain an oil, and recrystallized by adding 650 mL of ethanol.182 g (F-2) of white flake solid was obtained,Yield was 81%.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; Ningbo Lumilan New Materials Co., Ltd.; Ningbo Dinghao Optoelectric Materials Technology Co., Ltd.; Zhang Yuxiang; Zhang Qingyun; Ding Huanda; Chen Zhikuan; (41 pag.)CN110551154; (2019); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics