Chlorides-buliding-blocks

Synthetic Route of 870-24-6, 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. 870-24-6, name is 2-Chloroethanamine hydrochloride belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

A stirred solution of 2-chloroethylamine hydrochloride (l.OOg, 8.62mmol) and Et3N (3.60ml, 25.9mmol) in dry DCM (25ml) at 0C was treated with a solution of nosyl chloride (1.91g, 8.62mmol) in dry DCM (25ml) dropwise. On complete addition, the solution was warmed to ambient temperature and stirred overnight. The solution was evaporated and the residue purified by column chromatography (Si02, 20% EtOAc to 30% EtOAc in cyclohexane) to afford the title compound as a white solid (2.03g, 89%). XH NM (400 MHz, DMSO-d6) delta 8.45 – 8.38 (m, 3H), 8.09 – 8.04 (m, 2H), 3.59 (t, J = 6.0 Hz, 2H), 3.17 (s, 2H).

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-Chloroethanamine hydrochloride, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; AB SCIENCE; BENJAHAD, Abdellah; MARTIN, Jason; SCHALON, Claire; PEZ, Didier; CHEVENIER, Emmanuel; SANDRINELLI, Franck; PICOUL, Willy; MOUSSY, Alain; WO2015/144614; (2015); A1;,
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 62356-27-8 as follows. name: 1-Bromo-3-chloro-2-methylbenzene

EXAMPLE 175 6-(3-chloro-2-methylphenyl)-1,2-dihydro-2,2,4-trimethylquinoline (Compound 275, Structure 4 of Scheme II, where R1 =3-chloro-2-methylphenyl) This compound was prepared according to General Method 2 (EXAMPLE 9) from Compound 9 (70.0 mg, 0.22 mmol) and 2-bromo-6-chlorotoluene (45.2 mg, 0.22 mmol). The crude material was purified by flash column chromatography (75 ml silica, hexane to 5% ethyl acetate/hexane) to afford 63.1 mg (96%) of Compound 275. Data for Compound 275: 1 H NMR (400 MHz, acetone-d6) 7.30 (d, J=8.3, 1 H), 7.16 (m, 1 H), 6.95 (s, 1 H), 6.87 (d, J=10.2, 1 H), 6.54 (d, J=8.0, 1 H), 5.36 (s, 1 H), 5.25 (s, 1 H), 2.03 (s, 3 H), 1.28 (s, 6 H).

According to the analysis of related databases, 62356-27-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Ligand Pharmaceuticals Incorporated; US5693646; (1997); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 1939-99-7, 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. 1939-99-7, name is Phenylmethanesulfonyl chloride, This compound has unique chemical properties. The synthetic route is as follows.

K2CO3 (8.7 g, 62 mmol) was added into a mixture of phenylmethanesulfonyl chloride (6 g, 31 mmol) and 2-bromoethanamine hydrobromide (6.4 g, 31 mmol) in DCM (100 mL) at 0 C. And the resulting mixture was stirred at r.t. for 4 hours and left standing overnight. Upon the completion of reaction, water (100 mL) was added in and DCM phase was separated. The aqueous phase was extracted with DCM. The combined organic phase was dried over Na2SO4, filtered and concentrated in vacuo to provide a crude which was separated with column chromatography (silica gel with 200-300 mesh, 0 to 50% of EtOAc in petroleum ether) to provide compound N-(2-bromoethyl)(phenyl)methanesulfonamide (7.0 g, 80%) as a pale yellow solid. 1H NMR (300 MHz, CDCl3) delta 7.40 (m, 5H), 4.58 (m, 1H), 4.29 (s, 2H), 3.34-3.29 (m, 4H). LCMS (ESI), 300, 302 [M+Na]+, Br pattern found.

The chemical industry reduces the impact on the environment during synthesis Phenylmethanesulfonyl chloride. I believe this compound will play a more active role in future production and life.

Reference:
Patent; Genentech, Inc.; Fauber, Benjamin; Gobbi, Alberto; Rene, Olivier; van Niel, Monique Bodil; Gancia, Emanuela; Gaines, Simon; Ladduwahetty, Tammy; Vesey, David; Ward, Stuart; Winship, Paul; (101 pag.)US2016/168141; (2016); A1;,
Chloride – Wikipedia,
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Reference of 1984-58-3,Some common heterocyclic compound, 1984-58-3, name is 1,4-Dichloro-2-methoxybenzene, molecular formula is C7H6Cl2O, 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.

900 mL of ammonia was condensed at -78 C. 1 g of thinly shaven strips of sodium was added followed by 1.0 g of iron (III) nitrate nonahydrate. Upon disappearance of the deep blue color 25 g of thinly shaven strips of sodium was added. After 30 mins of stirring at -78 C., 50 g of 2,5-dichloroanisole was added as a solution in hexane (70 mL) dropwise and the reaction warmed to -45 C. for 2 hrs. Upon completion the ammonia was allowed to evaporate. The crude pot was then diluted in chloroform and 100 g of NH4Cl was added slowly. The combines were taken up in a separatory funnel and washed with water (3*) followed by brine (1*). The organic layer was dried over sodium sulfate and concentrated in vacuo. The resulting solid can be used without further purification. Yield: 99%. 1H NMR (400 MHz, DMSO) delta 6.98 (d, J=8.4, 1H), 6.34 (d, J=1.8, 1H), 6.16 (dd, J=8.4, 1.9, 1H), 5.23 (s, 2H), 3.74 (s, 3H). 13C NMR (101 MHz, DMSO) delta 154.90, 149.16, 129.68, 107.02, 106.74, 98.66, 55.38. HRMS (ESI) calculated for C7H8ClNO [M+H]+: 157.0367. found: 157.0361.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1,4-Dichloro-2-methoxybenzene, its application will become more common.

Reference:
Patent; Manetsch, Roman; Cross, Richard Matthew; Namelikonda, Niranjan Kumar; Kyle, Dennis Edward; Mutka, Tina Susanna; LaCrue, Alexis Nichole; Maignan, Jordany Richarlson; Saenz, Fabian Ernesto; US2013/123258; (2013); 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. 367-22-6, name is 4-Chloro-3-fluoroaniline belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. HPLC of Formula: C6H5ClFN

To a solution of 6-acetoxy-7-methoxy-quinazolin4-one (RO0505111-000) (1.0 g, 4.26 mmol) (from Example 15, Step A, supra) in SOCl2 (12.5 mL) (Aldrich) were added a few drops of DMF (0.1 mL). The reaction mixture was then heated with stirring at 100 C. for 3 hours. The solvents were evaporated and the residue was dried in vacuo. The residue was dissolved in 2-propanol (20 mL), followed by addition of 4-chloro-3-fluoroaniline (0.682 g, 4.69 mmol) (Aldrich). The reaction mixture was heated at 110 C. for 3 hours. The reaction mixture was cooled to room temperature and filtered. The precipitate was collected and dried in vacuo to give 6-acetoxy-4-(3-chloro-4-fluoro-phenylamino)-7-methoxy-quinazoline as a gray solid. (Yield 1.54 g, 100%).

The synthetic route of 367-22-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Luk, Kin-Chun; Zhang, Zhuming; US2004/254205; (2004); A1;,
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. 1303587-99-6, name is 2-Chloro-7,8-dihydro-6H-pyrimido[5,4-b][1,4]oxazine, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 2-Chloro-7,8-dihydro-6H-pyrimido[5,4-b][1,4]oxazine

Synthesis of2-chloro-8-(4-(trifluoromethyl) benzyl)-7, 8-dihydro-6H-pyrimido [5, 4-b] [I, 4] [0459] To a stirred solution of 2-chloro-7, 8-dihydro-6H-pyrimido [5, 4-b] [1, 4] oxazine (150 mg, 0.87 mmol) in DMF (3 mL) under argon atmosphere were added sodium hydride (42 mg, 1.75 mmol) and l-(bromomethyl)-4-(trifluoromethyl) benzene (251 mg, 1.05 mmol) at 0 C. The reaction mixture was stirred for 30 min at 0 C. After consumption of the starting materials (monitored by TLC), the reaction was quenched with cold water (20 mL) and extracted with EtOAc (2 x 100 mL). The combined organic extracts were washed with brine (5 mL), dried over sodium sulfate, filtered and concentrated in vacuo. The crude material was washed with n-pentane (2 x 5 mL) to afford 2-chloro-8-(4-(trifluoromethyl) benzyl)-7, 8- dihydro-6H-pyrimido [5, 4-b] [1, 4] oxazine (220 mg, 76%) as an off-white solid. 1H-NMR (OMSO-d6, 500 MHz): delta 7.76 (s, 1H), 7.74 (d, 2H), 7.52 (d, 2H), 4.89 (s, 2H), 4.23-4.20 (m, 2H), 3.57-3.54 (m, 2H); LCMS: 329.8 (M+l); (column; X-Select CSH C-18 (50 3.0 mm, 3.5 mupiiota); RT 3.88 min 0.05% Aq TFA: ACN; 0.80 mL/min); UPLC (purity): 90.0%; (column; Acquity UPLC BEH C-18 2.1 X 50 mm, 1.7 mupiiota); RT 2.58 min. ACN: 0.025% Aq TFA; 0.5 mL/min; TLC: 30% EtOAc/hexane (R 0.4).

According to the analysis of related databases, 1303587-99-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; FORUM PHARMACEUTICALS INC.; BURNETT, Duane, A.; BURSAVICH, Matthew, Gregory; MCRINER, Andrew, J.; WO2015/66697; (2015); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Reference of 67330-62-5, 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. 67330-62-5, name is 3-Chloro-2,6-diethylaniline, This compound has unique chemical properties. The synthetic route is as follows.

Example 4Synthesis of M-MIPACDEAIn a 5 litre flanged reaction vessel were placed a mixture of 137 ml of sulphuric acid, 580 ml water and 313 ml propan-2-ol. To this were added 250 grams of 3-chloro-2,6-diethylaniline and 203 grams of 2-methyl-6-isopropylaniline. The flask was provided with a stirrer, dropping funnel and condenser and the temperature was raised to 60 C.Formalin solution (35% w/w), 120 ml, was added over a period of 1 hour and heating was subsequently continued for 5 hours. The vessel contents were cooled and neutralised with ammonia solution.The product was extracted into ethyl acetate, washed with water, dried over sodium sulphate, filtered and rotary evaporated to give 467 grams of an amber liquid.Analysis by HPLC showed that the desired hybrid methylene bis-aniline M-MIPACDEA is present at 63% of the total, together with 15% of M-MIPA and 21% of M-CDEA.The liquid showed no sign of crystallisation over 3 months.

The chemical industry reduces the impact on the environment during synthesis 3-Chloro-2,6-diethylaniline. I believe this compound will play a more active role in future production and life.

Reference:
Patent; HEXCEL COMPOSITES LIMITED; US2012/316262; (2012); A1;,
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. 367-22-6, name is 4-Chloro-3-fluoroaniline, A new synthetic method of this compound is introduced below., Product Details of 367-22-6

To a stirred solution of 20 g (137.4 mmol) 4-Chloro-3-fluoro aniline in 120 ml DCM was added 22.1 ml (274.8 mmol, 2 eq.) pyridine in one portion. The resulting solution was cooled to 0-3C in an ice bath, then a solution of 19.6 ml (151.2 mmol, 1.1 eq.) benzosulfochloride in 80 ml DCM was added dropwise within 1 h, whereas the temperature was kept between 0 and 3C. A color change from brownish over yellow and orange towards red was observed. After 1.5 h 120 ml water was added to the reaction mixture, the organic phase was washed with 120 ml water, and the aq. phase was washed twice with total 100 ml DCM. The combined organic phases were dried over Na2SO4, filtered with suction on a funnel with a fritted disk and washed with total 100 ml DCM. The solvent was carefully removed under reduced pressure, then 200 ml hexane was added. The total volume was reduced to 100 ml, whereupon the formation of a precipitate was observed. The suspension was stirred over night at 4C, the beige precipitate was filtered off with suction on a funnel with a fritted disk, washed with a total amount of 50 ml hexane and dried at 50C in vacuo for 3 h to yield 39.27 g (98.3% of theory) of the title compound as a beige solid (m.p = 114.9-116.1C). 1H-NMR data (CDCl3, 400 MHz): delta 7.82 (m, 2H), 7.60 (m, 1H), 7.48 (m, 2H), 7.24 (dd, 1H), 7.01 (dd, 2H), 6.78 (ddd, 1H). MS m/e (%): 284 ([M-H]+, 100). EA for C12H9ClFNO2S calc.: C 50.44, H 3.17, N 4.90 O 11.20. Found: C 50.46, H 3.21, N 4.92 O 11.28.

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; F. Hoffmann-La Roche AG; EP2011783; (2009); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

These common heterocyclic compound, 106-39-8, name is 1-Bromo-4-chlorobenzene, 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. Recommanded Product: 1-Bromo-4-chlorobenzene

General procedure: To an oven dried 5 mL microwave vessel was addedPd(dppf)Cl2·CH2Cl2 (4 mol%), halide/pseudohalide (1 equiv),boron coupling partner (1 equiv), and Cs2CO3 (3 equiv). Thevessel was then capped and purged with N2 before addition ofCyrene (1 mL, 0.25 M) and H2O (1.8 mL). The reaction mixturewas heated to 50 C and maintained at this temperature withstirring for 5 h before the vessel was vented and decapped. Thesolution was then diluted with Et2O (10 mL) and washed withwater (2 × 20 mL) and brine (2 × 20 mL). The organics were thenpassed through a hydrophobic frit and concentrated underreduced pressure to give a residue, which was purified by flashchromatography (silica gel) to afford the title compound.

The synthetic route of 1-Bromo-4-chlorobenzene has been constantly updated, and we look forward to future research findings.

Reference:
Article; Wilson, Kirsty L.; Murray, Jane; Jamieson, Craig; Watson, Allan J. B.; Synlett; vol. 29; 5; (2018); p. 650 – 654;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Reference of 452-66-4,Some common heterocyclic compound, 452-66-4, name is 4-Chloro-1-fluoro-2-methylbenzene, molecular formula is C7H6ClF, 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.

General procedure: Lithium bis(trimethylsilyl)amide (66.8 mg, 0.4 mmol) and cesium fluoride (30.4 mg, 0.2 mmol) were placed in a microwave tube in a glove box. Add 0.4 mL of cyclopentyl methyl ether, Then 2-fluorotoluene (66 muL, 0.60 mmol) and benzonitrile (20 muL, 0.20 mmol) were added separately using a micro syringe. which was taken out from the glove box and refluxed at 110 C for 12 hours. After cooling to room temperature, the reaction was capped and three drops of water were added to quench the reaction. The solvent was removed under reduced pressure and the crude product was purified by column chromatography ( petroleum ether: ethyl acetate = 20:1) to give 2-phenylindole (34.7 mg) , 90% yield).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 4-Chloro-1-fluoro-2-methylbenzene, its application will become more common.

Reference:
Patent; Nanjing Tech University; Mao Jianyou; Xu Xinyu; Wang Zhiting; Liu Guoqing; (58 pag.)CN109665984; (2019); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics