Chlorides-buliding-blocks

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. 210532-25-5, name is 3,5-Difluorobenzene-1-sulfonyl chloride, This compound has unique chemical properties. The synthetic route is as follows., Application In Synthesis of 3,5-Difluorobenzene-1-sulfonyl chloride

General procedure: To a solution of intermediate 13 (10mmol) and triethylamine (15mmol) in dichloromethane (20ml), a solution of appropriate acyl chlorides or sulfonyl chlorides (1.05 eq) in dichloromethane (3ml) was added dropwise at room temperature overnight. The mixture was washed with saturated aqueous sodium bicarbonate and brine. After removing the solvent under reduced pressure, the crude product was purified by flash chromatography on silica gel to yield the intermediates 14a-n, 15a-k, 16a-h, 17a-m. Subsequently, to a solution of the above intermediates (2mmol) in methanol/H2O (75%, 10ml) was added lithium hydrate (2.4mmol). The resulting mixture was allowed to warm up to 60C for 4h. The reaction mixture was allowed to cool to room temperature and concentrated under pressure to remove methanol. The resulting mixture was diluted by water and acidified with aqueous HCl (1mol/L) till pH=3. The white solid was collected by filtration, washed with water three times and dried to give the target compounds.

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 210532-25-5.

Reference:
Article; Guo, Yongzhi; Zhao, Yuqian; Wang, Guan; Chen, Yi; Jiang, Yingnan; Ouyang, Liang; Liu, Bo; European Journal of Medicinal Chemistry; vol. 143; (2018); p. 402 – 418;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 1871-57-4, name is 3-Chloro-2-chloromethyl-1-propene, 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 1871-57-4, SDS of cas: 1871-57-4

General procedure: To a cooled solution (5 C) of the corresponding 4,6-O-(R)-benzylidene-d-hexopyranoside derivative (obtained using the procedure describe by our group2c) (35.4 mmol) in dry THF (70 mL) were added, successively, freshly powdered potassium hydroxide (7.0 g, 125 mmol), 18-crown-6 (0.38 g, 1.4 mmol), and 3-chloro-2-chloromethylpropene (4.1 mL, 35.4 mmol). The reaction mixture was stirred at this temperature for 3 h, and left at room temperature until all the starting material had been consumed, as monitored by TLC (5-7 days, approximately), then diluted with dichloromethane (60 mL) and washed successively with water and aqueous saturated solution of sodium bicarbonate, dried (MgSO4), filtered, and the filtrate was evaporated to dryness.

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it.

Reference:
Article; Vega-Perez, Jose M.; Vega-Holm, Margarita; Perinan, Ignacio; Palo-Nieto, Carlos; Iglesias-Guerra, Fernando; Tetrahedron; vol. 67; 2; (2011); p. 364 – 372;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Related Products of 57946-56-2, These common heterocyclic compound, 57946-56-2, name is 4-Chloro-2-fluoroaniline, 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.

The starting material was prepared as follows: A solution of 7-benzyloxy-4chloro-6-methoxyquinazoline (1.2 g, 4 mmol), (prepared as described for the starting material in Example 1), and 4-chloro-2-fluoroaniline (4441 mul, 4 mmol) in 2-propanol (40 ml) was refluxed for 1.5 hours. After cooling, the precipitate was collected by filtration, washed with 2-propanol then ether and dried under vacuum to give 7-benzyloxy-4-(4-chloro-2-fluoroanilino)-6-methoxyquinazoline hydrochloride (1.13 g, 64%). m.p. 239-242 C. 1H NMR Spectrum: (DMSOd6) 4.0(s, 3H); 5.36(s, 2H); 7.39-7.52(m, 9H); 8.1(s, 1H); 8.75(s, 1H); MS-ESI: 410 [MH]+; Elemental analysis: Found C, 59.2; H, 4.3; N, 9.4; C22H17N3O2ClF 1 HCl Requires C, 59.2; H, 4.1; N, 9.41%.

Statistics shows that 4-Chloro-2-fluoroaniline is playing an increasingly important role. we look forward to future research findings about 57946-56-2.

Reference:
Patent; Zeneca Limited; Zeneca Pharma S.A.; US6414148; (2002); B1;,
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. 328-72-3, name is 3,5-Bis(trifluoromethyl)chlorobenzene, A new synthetic method of this compound is introduced below., Application In Synthesis of 3,5-Bis(trifluoromethyl)chlorobenzene

Example 13 Synthesis of Methyl 3,5-bis(trifluoromethyl)cinnamate 0.619 g (7.2 mmol) of methyl acrylate, 38.7 mg (120 mumol) of NBu4Br, 6.7 mg (30 mumol) of palladium acetate and 26.7 mg (120 mumol) of phenyldi(t-butyl)phosphine are weighed into a Schlenk vessel. 1.49 g (6 mmol) of 3,5-bis(trifluoromethyl)chlorobenzene and 1.53 ml (7.2 mmol) of dicyclohexylmethylamine and also 3.5 ml of dimethylacetamide are then added. The Schlenk vessel is placed in a heating bath at 130 C. and the contents are stirred. After 4 hours, the contents are poured into 30 ml of water and the product is extracted by shaking with t-butyl methyl ether. After drying the organic phase over MgSO4, the solvent is removed under reduced pressure and the product is isolated. Yellowish, crystalline solid, yield: 1.34 g (97% of theory).

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; Rampf, Florian; Eckert, Markus; US2003/105353; (2003); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Related Products of 51419-59-1, These common heterocyclic compound, 51419-59-1, name is p-Tolylmethanesulfonyl chloride, 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.

1.0 g of 6-amino-1-propyl-2(1H)-quinolinone and 1.2 equivalents of p-methylbenzylsulfonyl chloride were added to 20 ml of DMF, and 3 equivalents of potassium carbonate was added as an acid binding agent. The reaction was maintained at room temperature and stirred for 12-16 hours. After that, ice water was added and the mixture was extracted with ethyl acetate for three times and the organic phase was combined and dried over anhydrous sodium sulfate. The organic phase was concentrated and the crude product was subjected to silica gel column chromatography to give 1.3 g of compound 1022B with a yield of 70percent. (0326) 1HNMR (400 MHz, DMSO-d6): delta 0.95 (t, 3H), 1.62 (m, 2H), 2.27 (s, 3H), 4.18 (t, 2H), 4.42 (s, 2H), 6.60 (d, 1H), 7.12-7.17 (m, 4H), 7.40 (d, 1H), 7.45 (s, 1H), 7.55 (d, 1H), 7.83 (d, 1H) ppm; 13CNMR (100 MHz, DMSO-d6) delta 11.53, 20.99, 21.54, 43.35, 57.34, 116.08, 119.20, 121.17, 122.14, 124.01, 126.89, 129.46, 131.34, 133.02, 135.97, 138.12, 139.45, 161.12 ppm.

The synthetic route of 51419-59-1 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; SHANGHAI INSTITUTES FOR BIOLOGICAL SCIENCES, CHINESE ACADEMY OF SCIENCES; ZHU, Jiankang; ZHANG, Yulu; CAO, Minjie; LIU, Xue; WANG, Qiuhua; US2019/84; (2019); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Application of 202197-26-0, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 202197-26-0 name is 3-Chloro-4-((3-fluorobenzyl)oxy)aniline, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

3-Chloro-4-((3-fluorobenzyl)oxy)aniline (12.58 g, 50 mmol) was added to 100 ml of toluene and stirred well.Thereafter, 0.4 g of acetic acid (as a catalyst) was added, followed by dropwise addition of triethyl orthoformate (3.8 g, at room temperature using an addition funnel.25 mmol), after the addition of the Dean-Stark apparatus, the reaction mixture was placed in an oil bath and heated to 80 C for 1 h.The ethanol was collected by a Dean-Stark apparatus; then the temperature was raised to 110 C for 2 h, and after the reaction was completed, it was cooled to room temperature and placed in an ice bath.The solid was precipitated, filtered, and the filter cake was washed with a little toluene to give (E)-N’-(3-chloro-4-((3-chlorobenzyl)oxy)phenyl)-N-(3-Chloro-4-((3-fluorobenzyl)oxy)phenyl)carboxamidine 12.4 g, yield 93.7%. The HPLC purity was 99.14%.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3-Chloro-4-((3-fluorobenzyl)oxy)aniline, and friends who are interested can also refer to it.

Reference:
Patent; Yancheng Normal College; Nanjing University Of Technology Dafeng Ocean Industrial Institute; Sun Yaquan; Zong Chaoyang; Gu Huiwen; (10 pag.)CN108440420; (2018); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 139512-70-2,Some common heterocyclic compound, 139512-70-2, name is 4-Chloro-5-fluorobenzene-1,2-diamine, molecular formula is C6H6ClFN2, 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 compound 5 (0.2 g, 1.24 mmol) and benzil 6d (0.26 g, 1.24 mmol) were weighed and dissolved in 20 mL glacial acetic acid. This mixture was refluxed for 2.5hr. The completion of reaction was monitored by TLC. The reaction mixture was cooled and poured into crushed ice. The precipitated product was filtered off and washed with cold water. The product was then purified by column chromatography using hexane: ethyl acetate as mobile phase. The pure fractions obtained were dried and concentrated to obtain white solids of product 7d. (yield 82%, m.p. 110-112 C). 1H NMR (400 MHz, CDCl3), delta ppm, 7.3381-7.2488 (m, 6H, Ar-3,4,5-H at C-2 and C-3), 7.441-7.411 (m, 4H, Ar-2,6-H at C-2 and C-3), 7.8824 (d, J = 9.28, -H at C-5), 8.1930 (d, J = 7.6, -H at C-8). 13C NMR (400 MHz, CDCl3), delta ppm, 113.66, 113.87, 125.44, 125.66, 128.38, 129.18, 129.27, 129.78, 129.81, 130.38, 138.38, 138.53, 138.46, 140.50, 140.61, 153.73, 153.76, 154.39, 156.93, 159.46. Mass (ESI), C20H12ClFN2, M+ and [M+2]+ peaks were found at 334 and 336, respectively.

The synthetic route of 139512-70-2 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Patel, Saloni B.; Patel, Bhumika D.; Pannecouque, Christophe; Bhatt, Hardik G.; European Journal of Medicinal Chemistry; vol. 117; (2016); p. 230 – 240;,
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. 2106-02-7, name is 2-Chloro-4-fluoroaniline, This compound has unique chemical properties. The synthetic route is as follows., name: 2-Chloro-4-fluoroaniline

General procedure: To a well stirred solution of compound 6a or 6b (0.2 g, 1 Eq.) in absolute ethanol (10 mL), the appropriately substituted anilines(1.1 Eq) was added and the reaction mixture was refluxed for 2-3 h until TLC showed full consumption of starting materials. The excess of solvent was evaporated under reduced pressure to yield the crude solids, which were further purified by recrystallization with methanol to afford the desired title compounds (7-43).

According to the analysis of related databases, 2106-02-7, the application of this compound in the production field has become more and more popular.

Reference:
Article; Cherukupalli, Srinivasulu; Chandrasekaran, Balakumar; Kry?tof, Vladimir; Aleti, Rajeshwar Reddy; Sayyad, Nisar; Merugu, Srinivas Reddy; Kushwaha, Narva Deshwar; Karpoormath, Rajshekhar; Bioorganic Chemistry; vol. 79; (2018); p. 46 – 59;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electric Literature of 19230-27-4, The chemical industry reduces the impact on the environment during synthesis 19230-27-4, name is 1,3-Dibromo-2-chlorobenzene, I believe this compound will play a more active role in future production and life.

A mixture of 9a (340 mg, 2.47 mmol, 1.0 eq), 9b (1.0 g, 3.70 mmol, 1.5 eq), potassium carbonate (1.03 g, 7.41 mmol, 3.0 eq). Cuprous iodide (141.0 mg, 0.74 mmol, 0.3 eq), and L-proline (85.0 mg, 0.74 mmol, 0.3 eq) in 2-pentanol (30.0 mL) was stirred at 140 C overnight under argon atmosphere, then cooled to room temperature. Water (50.0 mL) was added. The mixture was filtered through celite. The filtrate was acidified to pf i 2 with 2 N HC1, then water (50.0 mL) was added. The resulting mixture was extracted with EtOAc (50.0 ml, x 3) The combined organic layers were washed with brine (20.0 mL x 5), dried over anhydrous NaaSOr and filtered. The filtrate was concentrated in vacuo to afford 9c (crude, 600 mg, 74.5%). LC/MS: 326.0 j M S | .

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, 1,3-Dibromo-2-chlorobenzene, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; SILICON SWAT, INC.; CHAMBERLAIN, Brian T.; RICE, James M.; JERNIGAN, Finith E., III; SHERMAN, Woody; KULKARNI, Meghana M.; SHECHTER, Sharon; ALLEN, Bryce K.; TAN, Dazhi; MARINO, Kristen A.; LIN, Zhixiong; (292 pag.)WO2019/100061; (2019); 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. Product Details of 367-22-6

To 4-chloro-3-fluoroaniline (25g, 0.17 mmol) in 250 mL of H20 was added NaHC03 (21.6g, 0.25 mmol). After cooling to 0 C, iodine (43.5 g, 0.17 mmol) was added. After 18 h at rt, an additional 10.8 g of iodine was added and the reaction was stirred overnight. The reaction was extracted with DCM (4×250 mL), the combined organics were washed with sodium thiosulfate solution (2×250 mL) and brine (2×250 mL) and dried ( a2S04). Purification by silica gel chromatography gave 47 g of Intermediate 5A.MS (ESI) m/z: 145.2 (M+H)+.

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

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; ORWAT, Michael J.; PINTO, Donald J.P.; SMITH II, Leon M.; SRIVASTAVA, Shefali; CORTE, James R.; WO2013/55984; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics