Chlorides-buliding-blocks

Reference of 13918-92-8, 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. 13918-92-8, name is 2,4-Difluorobenzene-1-sulfonyl chloride belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: The target compound 10a was obtained by treating 9a (533 mg, 1 mmol) with BF3xEtO2 (2 mL, 1.5 mmol) in CH2Cl2 in first step, the crude deprotected compound was directly reacted with methyl sulfonyl chloride (1.2 ml, 1 mmol) in the presence of triethyl amine (3.3 mL, 3 mmol) in dry THF (50 ml). After stirring the reaction mixture for 6 h, the reaction mixture was poured on to crushed ice (1.4 g) and the reaction mixture extracted and purified by column chromatography affords final product 10a as yellow solid.

The synthetic route of 2,4-Difluorobenzene-1-sulfonyl chloride has been constantly updated, and we look forward to future research findings.

Reference:
Article; Bharath, Yarlagadda; Alugubelli, Gopi Reddy; Sreenivasulu, Reddymasu; Rao, Mandava. V. Basaveswara; Chemical Papers; vol. 72; 2; (2018); p. 457 – 468;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

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. 1435-44-5, name is 1-Chloro-2,4-difluorobenzene, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 1-Chloro-2,4-difluorobenzene

(a) 3-Chloro-2,6-difluorobenzaldehyde n-Butyllithium (1.43M in hexane, 20.2 mmol, 14.1 ml) was added dropwise at 0 C. to a solution of diisopropylamine (2.91 ml, 22.2 mmol) in THF (80 ml). After 30 min. at 0 C., the solution was cooled to -78 C. and 1-chloro-2,4-difluorobenzene (3 g, 20.2 mmol) in THF (10 ml) added dropwise. After 30 min., 4-formylmorpholine (4.1 ml) was added and the mixture warmed to room temperature over 1 h, diluted with 1N HCl, extracted twice with ethyl acetate, the extracts washed with brine, dried over sodium sulphate and evaporated to give a mobile yellow oil (2.2 g), MS (+EI) 178/177/176/175 (M+), 1H NMR (CDCl3) 10.34 (1H, s), 7.66-7.60 (1H, m), 7.00 (1H, dt, J6.9 Hz, 1.2 Hz).

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 1435-44-5.

Reference:
Patent; Astra Pharmaceuticals Limited; US5883102; (1999); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

These common heterocyclic compound, 106131-61-7, name is 3,6-Dichloro-1,2,4,5-tetrazine, 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. category: chlorides-buliding-blocks

To a solution of 3, 6-dichloro- 1,2,4,5 -tetrazine (2.67 g, 17.7 mmol) in methyl ter/-butyl ether (125 mL) at -25 C under nitrogen was added but-3-yn-l -amine hydrochloride (1.87 g, 17.7 mmol), followed by the addition of N,N-diisopropylethylamine (12.4 mL, 70.7 mmol) and the reaction mixture was stirred at -25 C under nitrogen for 26 h. Silica gel (-5 g) was added to the reaction and all solvents were removed in vacuo. The silica gel mesh was loaded on an ISCO silica gel cartridge (220 g) eluting with 25% (0558) EtOAc/hexanes over 2592 mL to afford the title compound (853.3 mg) as a deep red/orange viscous oil,. NMR (400 MHz, CDCh) delta 6.12 (br s, 1H), 3.80 (q, J=6.3 Hz, 2H), 2.63 (td, J=6.3, 2.6 Hz, 2H), 2.10 (t, J=2.6 Hz, 1H).

The synthetic route of 3,6-Dichloro-1,2,4,5-tetrazine has been constantly updated, and we look forward to future research findings.

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; BENDER, John A.; GENTLES, Robert G.; PENDRI, Annapurna; WANG, Alan Xiangdong; MEANWELL, Nicholas A.; BENO, Brett R.; FRIDELL, Robert A.; BELEMA, Makonen; NGUYEN, Van N.; YANG, Zhong; WANG, Gan; KUMARAVEL, Selvakumar; THANGATHIRUPATHY, Srinivasan; BORA, Rajesh Onkardas; HOLEHATTI, Shilpa Maheshwarappa; METTU, Mallikarjuna Rao; PANDA, Manoranjan; (319 pag.)WO2016/172424; (2016); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Application of 363-51-9, 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. 363-51-9, name is 2-Chloro-6-fluoroaniline belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To a solution of 2-chloro-6-fluorobenzenamine (5.0 g, 34 mmol) in chlorobenzene (52 mL) was added carbonothioic dichloride (thiophosgene) (5.1 g, 45 mmol) and DMF (0.27 mL). The reaction mixture was refluxed for 2 h and then concentrated to leave the title compound as a brown oil (6.15 g), which was used in Step C without further purification. ¾ NMR delta 7.18 (m, 2H), 7.07 (m, 1H).

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, 2-Chloro-6-fluoroaniline, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; E. I. DU PONT DE NEMOURS AND COMPANY; LONG, Jeffrey, Keith; GREGORY, Vann; GUTTERIDGE, Steven; TAGGI, Andrew, Edmund; BEREZNAK, James, Francis; WO2012/31061; (2012); A2;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Related Products of 172921-33-4, 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. 172921-33-4, name is 1-Bromo-4-chloro-2,5-difluorobenzene belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

3. Preparation of 2-(4-Chloro-2,5-difluorophenyl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane 1-Bromo-4-chloro-2,5-difluorobenzene (1.11 g, 4.9 mmol) was dissolved in tetrahydrofuran (THF; 15 mL) and cooled to -10° C. A 2.0M solution of isopropyl-magnesium chloride (2.7 mL, 5.4 mmol) in THF was added dropwise via a syringe. The reaction mixture was stirred at -10° C. for 1 hour, allowed to warm toward 0° C. for 1 hour, then cooled to -10° C. again. A solution of 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.0 g, 5.4 mmol) in THF (1.0 mL) was then added dropwise and the reaction was allowed to warm to ambient temperature. The reaction mixture was then added to diethyl ether and extracted with 1N sodium hydroxide twice. The aqueous phases were combined, acidified to pH 3 with concentrated HCl, and extracted with dichloromethane twice. The organic phases were combined, dried, filtered and concentrated to give the title compound (0.97 g, 72.3percent yield) that was used without further purification: 1H NMR (CDCl3): delta 7.45 (dd, 1H), 7.09 dd, 1H), 1.36 (s, 12H).

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, 1-Bromo-4-chloro-2,5-difluorobenzene, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Epp, Jeffrey B.; Schmitzer, Paul R.; Guenthenspberger, Katherine A.; Lo, William C.; Siddall, Thomas L.; US2009/62125; (2009); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Reference of 1008361-80-5, A common heterocyclic compound, 1008361-80-5, name is 4-Bromo-3-chlorobenzene-1,2-diamine, molecular formula is C6H6BrClN2, 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.

To a solution of 4-bromo-3-chlorobenzene-l,2-diamine (0.1 g) in DMF (2 mL) at room temperature Iota, Gamma-carbonyldiimidazole (0.110 g) was added. The resulting homogeneous solution was stirred overnight at room temperature and then poured into 20 mL of water. The title compound was isolated by filtration, washed with water containing a few drops of 2 N aq. HC1 and dried under high vacuum.

The synthetic route of 1008361-80-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ACHILLION PHARMACEUTICALS, INC.; WILES, Jason, Allan; PHADKE, Avinash, S.; DESHPANDE, Milind; AGARWAL, Atul; CHEN, Dawei; GADHACHANDA, Venkat, Rao; HASHIMOTO, Akihiro; PAIS, Godwin; WANG, Qiuping; WANG, Xiangzhu; GREENLEE, William; (447 pag.)WO2017/35408; (2017); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 14752-66-0, The chemical industry reduces the impact on the environment during synthesis 14752-66-0, name is Sodium 4-chlorobenzenesulfinate, I believe this compound will play a more active role in future production and life.

A mixture of 8-fluoro-3-iodoquinoline (750 mg, 2.75 mmol), sodium 4- chlorobenzenesulfinate (1.1 g, 5.5 mmol), copper (I) iodide ( 52 mg, 0.275 mmol) and potassium carbonate (380 mg, 2.75 mmol) was treated with lambda^, lambda^-dimethyl-l,2-ethanediamine (49 mg, 0.55 mmol) and anhydrous dimethylsulphoxide (4 ml). The mixture was stirred at 1000C under argon for 8 hr, and cooled to 200C. The reaction mixture was diluted with water (60 ml) and extracted with ethyl acetate (3 x 40 ml). The organic extracts were combined, washed with water (60 ml) and brine (60 ml), dried over magnesium sulphate, and evaporated to dryness. The residue was dissolved in a 1 :1 mixture of dimethylsulphoxide and acetonitrile and purified by mass-directed auto -preparative chromatography using 10 minute gradients containing water and between 50% and 99% acetonitrile with 0.1% formic acid. Product fractions were collected and evaporated to yield the title compound as a white solid (295 mg,deltaH (CDCl3, 400MHz) 7.51-7.69 (4H, m), 7.79 (IH, d, J = 8 Hz), 7.96-7.99 (2H, m), 8.84 (IH, d, J = 2 Hz), 9.30 (IH, d, J = 2 Hz)Mass spectrum: C15H9ClFNO2S requires 321; found 322 (MH+)

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, Sodium 4-chlorobenzenesulfinate, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; GLAXO GROUP LIMITED; WO2008/116816; (2008); 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. 14862-52-3, name is 3,5-Dibromochlorobenzene belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. category: chlorides-buliding-blocks

General procedure: A mixture of 1,3-dibromo-5-chlorobenzene (2 g, 7.41 mmol), 9Hcarbazole(2.60 g, 15.56 mmol), tris(dibenzylideneacetone)dipalladium(339 mg, 0.37 mmol), 2-dicyclohexylphosphino-2?,6?-dimethoxy-1,1?-biphenyl (457 mg, 1.11 mmol) and sodium tert-butoxide (2.85 g,29.64 mmol) in 100 ml of toluene were heated at 80 C for 4 h underargon. After cooling down to room temperature, the mixture was extractedwith dichloromethane. The combined organic extracts weredried over Na2SO4 and evaporated under reduced pressure. The crudeproduct was purified by column chromatography on silica gel usingpetroleum ether/dichloromethane (PE/DCM, 8/1, v/v) as the eluent toafford the target compound (2.46 g, 75%).

The synthetic route of 14862-52-3 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Ran, Quan; Zhang, Yuan-Lan; Hua, Xiaochen; Fung, Man-Keung; Liao, Liang-Sheng; Fan, Jian; Dyes and Pigments; vol. 162; (2019); p. 632 – 639;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 501-29-1, These common heterocyclic compound, 501-29-1, name is 1-Chloro-2-fluoro-4-methoxybenzene, 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.

Tetrahydrofuran (8.35 L) into a 3-L four-neck flask equipped with a mechanical stirrer, an addition funnel and a temperature probe under N2 atmosphere. Charged 4-Chloro-3-fluoroanisole (1000 g) to a 3-L four-neck flask equipped with a mechanical stirrer, an addition funnel and a temperature probe. Cooled the reaction mass to -60 C. to -70 C. Added n-Butyl Lithium in hexanes (30%, 1.42 kg) in to reaction mass through canula under nitrogen atmosphere slowly, while maintaining the temperature of the reaction mass below -60 C. Maintained the reaction at below -60 C. for 2 h. Meanwhile Iodine solution prepared by dissolving Iodine (2.405 kg) in Tetrahydrofuran (2.4 L) at 25-28 C. Transferred the Iodine solution in step 6 into a clean addition funnel with THF (500 mL) rinse. Added Iodine solution from the addition funnel to the reaction over 120 min while maintaining the internal temperature at <-60 C. Removed cooling bath and allowed to attain -5 C. to 0 C. Submitted the IPC sample when it reaches -5 C. to 0 C.1. A sample was removed at -2 h and checked by HPLC-97.06 AP; Int-01-0.59 AP. Work Up: Quenched the reaction with 20% Na2SO2O3 solution (1.015 kg of sodium thiosulphate dissolved in 5.1 L of DM water) while maintaining the internal temperature at <10 C. Allowed RM to warm to RT. Transfer resulting biphasic mixture into separating funnel, rinse the flask with THF (1.2 L; 1.0-1.5 Vol wrt Int-1), and transfer to separating flask. Removed and retain bottom aqueous phase for further extraction. Concentrated the organic layer. Dissolved concentrated mass in EtOAc (8.0 L; 8.0-8.5 Vol wrt Int-1) Extract the retained aqueous phase with EtOAc (7.1 L: 7.0-7.5 Vol wrt Int-1). Combined all organic phases, Rinse the flask with EtOAc (1.0 L; 1.0-1.5 Vol wrt Int-1). Washed organic phases with DM water (5.7 L; 5.0-6.0 Vol wrt Int-1). Concentrated the organic layer2 on rotovap at 45-50 C. completely. Purification: Added Acetonitrile (5.1 L; 5.0-5.5 vol wrt Int-01). Warmed to 55 C. to dissolve all solid. Rotate the above mass in rotavapor flask at 55 C. for 10 min. Cooled to ambient temperature. Transferred the mass into a clean reactor, rinse the flask with Acetonitrile (1.0 L; 1.0-1.2 vol wrt Int 01) and add rinse into reactor. Added water (1 L; 1.0-1.2 vol wrt Int-01) in to reactor with stirring. Stirred the resulting slurry for 15 min. Added water (5.3 L; 5.0-5.5 Vol wrt Int-01) over 15 min. Stirred the above mass at ambient temperature for 15 min. Unload the mass into a container, rinsed the reactor with water (1 L; 1.0-1.2 vol wrt Int-01), and collected the rinse in same container. Filtered the solid. Rinsed the container with water (1 L; 1.0-1.2 vol wrt Int-01), filtered the rinse. Washed filter cake with water (3.3 L; 3.0-3.5 Vol wrt Int-01). Suck dried for 2 h, then dried at 55 C. in VTD for 15 h. Unload the material. (LOD should be less than 1%). Wt: 1533 g (85.9% yield). Description (color and appearance): Off White crystalline solid. HPLC RT Time 4.897 min Under following conditions: Detector: 210 nm; Injection volume 5.00 muL; Run Time 15 min; Column. YMC UltraHT Pro C18 (50 mm×3.0 mm), 2.0mu; Mobile Phase A-0.05% TFA in MillQ Water; Mobile Phase B-0.05% TFA in Acetonitrile; Flow: 1.0 mL/min; Column Oven-40 C.; Time (min)-0 05 10 12 15; B Conc.-10 90 90 10 10. NMR: (1H NMR, 400 MHz, dmso-d6) delta 7.58 (t, 8.8 Hz, 1H), 6.89 (m, 1H), 3.87 (s, 3H). The synthetic route of 501-29-1 has been constantly updated, and we look forward to future research findings. Reference:
Patent; Bristol-Myers Squibb Company; Yeung, Kap-Sun; Kadow, John F.; US2013/203775; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 61881-19-4, name is 2,2,2-Trifluoro-N-phenylacetimidoyl chloride, 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 61881-19-4, SDS of cas: 61881-19-4

Disaccharide 92 (1.0 g, 1.03 mmol) was dissolved in a mixture of CH3CN/ /H20 (30 mL/7.5 mL). Ceric ammonium nitrate (1.69 g, 3.09 mmol) was added to the solution at 0 C and then the mixture was stirred at room temperature under N2 for 2 h. The mixture was concentrated to dryness and the residue was diluted with DCM (100 mL) and the organic phase was washed with H20 and then dried over Na2S04, filtered and the solvents were removed in vacuum. Silica gel column chromatography (3:2 hexanes-EtOAc) afforded the corresponding hemiacetal 93 (730 mg, 82%>). Compound 93, N-phenyltrifluoroacetimidoyl chloride (0.68 mL, 4.2 mmol) and DCM (50 mL) was cooled down to 0 C. DBU (127 mu, 0.95 mmol) was added and the mixture was stirred at room temperature for 1 h. The mixture was concentrated. Silica gel column chromatography (2: 1 hexanes-EtOAc) afforded the disaccharide donor 3 as a white solid (650 mg, 75%>).

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2,2,2-Trifluoro-N-phenylacetimidoyl chloride, and friends who are interested can also refer to it.

Reference:
Patent; UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.; BOONS, Geert-Jan; WANG, Zhen; WO2012/135049; (2012); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics