Chlorides-buliding-blocks

Adding a certain compound to certain chemical reactions, such as: 94-97-3, name is 5-Chloro-1H-benzo[d][1,2,3]triazole, 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 94-97-3, 94-97-3

A mixture of 5-chloro-1H-benzotriazole (8 g), chloroacetone (6.5 mL), potassium carbonate (9.5 g) and potassium iodide (0.5 g) was stirred in acetone (90 mL) at room temperature for 48 hours. The reaction mixture was filtered and the filtrate concentrated under reduced pressure to give a residue that was purified by chromatography (SiO2, heptane/EA) to afford 1-(5-chloro-2H-benzotriazol-2-yl)-propan-2-one as clear oil [1.8 g, 16%, Rf=0.6 (1:1 EA/heptane)]. The two other regioisomers were also isolated, 1-(6-chloro-1H-benzotriazol-1-yl)-propan-2-one [3.8 g, 35%, Rf=0.45 (1:1 EA/heptane)] and 1-(5-chloro-1H-benzotriazol-1-yl)-propan-2-one [3.2 g, 29%, Rf=0.35 (1:1 EA/heptane)].

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, 5-Chloro-1H-benzo[d][1,2,3]triazole, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Soll, Mark David; Hir de Fallois, Loic Patrick Le; Huber, Scot Kevin; Lee, Hyoung Ik; Wilkinson, Douglas Edward; Jacobs, Robert Toms; Beck, Brent Christopher; US2010/125089; (2010); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

The chemical industry reduces the impact on the environment during synthesis 13918-92-8, name is 2,4-Difluorobenzene-1-sulfonyl chloride, I believe this compound will play a more active role in future production and life. 13918-92-8

General procedure: To a solution of 76 (120 mg, 0.37 mmol) in dry pyridine (12 mL) under N2 at RT, was added 2,4-difluorobenzenesulphonyl chloride (159 mg, 0.74 mmol) in CH2Cl2 (1.5 mL) dropwise over 5 min. The mixture was stirred at 45 C under N2 for 16 , and the solvent then removed under reduced pressure. The reaction was quenched with a little water and the resulting solid collected by filtration and washed with water and Et2O. Purification was carried out by trituration with hot CH2Cl2/MeOH solution to give 4 as a pale brown solid (65%).

The chemical industry reduces the impact on the environment during synthesis 13918-92-8. I believe this compound will play a more active role in future production and life.

Reference:
Article; Spicer, Julie A.; Miller, Christian K.; O’Connor, Patrick D.; Jose, Jiney; Huttunen, Kristiina M.; Jaiswal, Jagdish K.; Denny, William A.; Akhlaghi, Hedieh; Browne, Kylie A.; Trapani, Joseph A.; European Journal of Medicinal Chemistry; vol. 137; (2017); p. 139 – 155;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

112-26-5, 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. 112-26-5 name is 1,2-Bis(2-chloroethoxy)ethane, 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-Nitro-2-naphthol20 W. Woodcock and D.R. Clifford, J. Chem. Soc. (1957), pp. 4139-4141.20 (1.3 g, 6.6 mmol), 1,8-dichloro-3,6-dioxaoctane (0.5 mL, 3.3 mmol), and K2CO3 (1.4 g) in 2 mL of DMF was heated at 115 C for 4 h. After water addition, the reaction mixture was extracted threefold with chloroform. Pure oily product was obtained with the use of column chromatography. As an eluent, methylene chloride (at the beginning) and then a mixture of methylene chloride-acetone (5:1) was used. Yield 0.9 g (57%) of yellow oil. TLC (methylene chloride-acetone, 50:1) Rf=0.55. 1H NMR (CDCl3), delta [ppm]: 3.74 (4H, s); 3.93 (4H, t, J=4.7 Hz); 4.40 (4H, t, J=4.7 Hz); 7.52 (2H, t, J=7.1 Hz); 7.64 (2H, t, J=7.3 Hz); 7.66 (2H, s); 7.90 (2H, d, J=8.2 Hz); 8.01 (2H, d, J=8.2 Hz); 8.40 (2H, s). IR (film): 3060; 2928; 2876; 1632; 1603; 1529; 1447; 1359; 1258; 1229; 1185; 1126; 1071; 953; 900; 869; 752; 476 cm-1. HRMS (EI): [M]+=492.15288 calculated for C26H24N2O8 492.15327.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1,2-Bis(2-chloroethoxy)ethane, and friends who are interested can also refer to it.

Reference:
Article; Wagner-Wysiecka, Ewa; Rzymowski, Tomasz; Fonari, Marina S.; Kulmaczewski, Rafa?; Luboch, Elbieta; Tetrahedron; vol. 67; 10; (2011); p. 1862 – 1872;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

60811-21-4, These common heterocyclic compound, 60811-21-4, name is 4-Bromo-2-chloro-1-fluorobenzene, 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.

Compound 10H- spiro [fluorene-9,9′ acridine] (16.55g, 50mmol)And 4-bromo-2-chloro-1-fluorobenzene (10.50g, 50mmol)Add in a three-necked flask,Stir and dissolve with 200 mL of N,N-dimethylformamide (DMF).Nitrogen protection,Then add Cs2CO3 (19.5g, 60mmol)And K2CO3.The reaction solution was stirred and refluxed for 12 hours.After cooling, the reaction solution was poured into 1000 mL of water, and 2 filtered, and the filter cake was washed with a mixed solvent of ethanol and petroleum ether, and suction filtered.The filter cake was recrystallized from a mixed solvent of dichloromethane and petroleum ether (DCM/PE).The compound 1-1 (16.09 g, yield 62%) was obtained as a white solid.

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 60811-21-4.

Reference:
Patent; Guangzhou Huarui Optoelectric Materials Co., Ltd.; Yang Xi; Pan Junyou; Wang Pu; (50 pag.)CN109651369; (2019); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

108-37-2, A common compound: 108-37-2, name is 1-Bromo-3-chlorobenzene, belongs to chlorides-buliding-blocks compound, it can change the direction of chemical reaction, and react with certain compounds to generate new functional products. A new synthetic method of this compound is introduced below.

General procedure: To a round-bottom flask equipped with a magnetic stirring bar were added monomeric palladacycle 2 (0.4 mol %), K2CO3 (1.1 mmol), olefin (2.2 mmol) and aryl halide (1 mmol) in NMP (3 mL). The mixture was heated at 130 C using an oil bath and the progress was monitored by TLC (hexane/EtOAc, 80:20) and gas chromatography (GC). After completing the reaction, the mixture was diluted with n-hexane (30 mL) and H2O. The organic layer was washed with brine (20 mL), dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by recrystallization from EtOH and H2O. The products were characterized by comparing their mp and IR, 1H and 13C NMR spectra with those reported in the literature.

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

Reference:
Article; Hajipour, Abdol Reza; Rafiee, Fatemeh; Rouho, Arnold E.; Tetrahedron Letters; vol. 52; 37; (2011); p. 4782 – 4787;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

41965-95-1, A common compound: 41965-95-1, name is 3-Chloro-4-methoxybenzylamine Hydrochloride, belongs to chlorides-buliding-blocks compound, it can change the direction of chemical reaction, and react with certain compounds to generate new functional products. A new synthetic method of this compound is introduced below.

A mixture of 4 (0.12 mmol), 3~ehoro-4-methoxyhenzylamine hydrochloride (0.12 mmol), Nal (0.006 mmol), and phenol (0.12 mmol) was heated at 130 “C for 2.5 h. The reaction mixture was diluted with Et20 ( 10 mL) and washed with IN NaOH (3×5 mL). The organic layer was dried over Na2S0 , filtered and evaporated under reduced pressure. The residue was purified by Flash Chromatography (AcOEt: MeOH 8:2) to give the desired compound B (33% of yield). MS ESI (m/z) 394 (M+ j ), H NMR (300 MHz, CDCI3) delta 8.32 (d, 1 H, J= 1.2 Hz), 7.97 (d, 1H, J= 8.7 Hz), 7.71 (dd, 1H, J,= 1 .8, J2= 8.7 Hz), 7.37 (d, 1H, J= 2.1 Hz), 7.18 (dd, 1H, Jx= 2.4, J2= 8.7 Hz), 6.94 (d, 1H, J- 8.4 Hz), 4.57 (d, 2H, J= 6.0 Hz), 4.1 1 (br s, 1H), 3.92 (s, 3H), 3.54 (s, 2H), 3.22 (t, 2H, J= 6.3 Hz), 2.83 (t, 2H, J= 6.3 Hz), 2.52 (s, 3H).

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, 3-Chloro-4-methoxybenzylamine Hydrochloride, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK; LANDRY, Donald, W.; DENG, Shixian; ARANCIO, Ottavio; FIORITO, Joie; WASMUTH, Andrew; WO2013/109738; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

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. 39989-43-0 name is 3,5-Dichlorobenzylamine, 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. 39989-43-0

To a solution of 3,5-dichlorobenzylamine (12 mg, 0.068 mmol) in DCM (0.2 mL) was added a solution of 9 (13 mg, 0.054 mmol) in DCM (0.5 mL) at room temperature. The resulting mixture was stirred until all of the 9 had been consumed (within one hr) and then was used straight in the next reaction. MS (ESI) 415 (M+1); HPLC tR 6.00 min.

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

Reference:
Patent; MIMETICA PTY LTD; US2012/141392; (2012); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

81927-55-1, These common heterocyclic compound, 81927-55-1, name is Benzyl 2,2,2-trichloroacetimidate, 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.

A stirred solution of (R)- methyl 3-hydroxy-2-methylpropanoate (9.57 g, 81.0 mmol) and benzyl 2,2,2- trichloroacetimidate (22.50 g, 89.1 mmol) in CH2Cl2 (10 mL) was cooled to 0 0C under N2. Triflic acid (0.1 mL) in CH2Cl2 (1 mL) was added dropwise. After 10 minutes the reaction became a solid mass. After 1 hour, saturated aqueous NaHCO3 was added and the mixture extracted with Et2O. The organics were dried over MgSO4, filtered and concentrated on a rotary evaporator. Hexane was added and the resulting solids collected by vacuum filtration. The filtrate was concentrated on a rotary evaporator and purified using flash chromatography (5-10% EtOAc/hexane) to give 10.39 g (62%) of (R)-methyl 3-(benzyloxy)-2- methylpropanoate as a colorless oil. Rf= 0.20 (10% EtOAc/hexane). 1H NMR (300 MHz, DMSO-D6) delta ppm 1.08 (d, J=7.14 Hz, 3 H) 2.75 (ddd, J=14.01, 12.64, 7.14 Hz, 1 H) 3.44 – 3.59 (m, 2 H) 3.60 (s, 3 H) 4.46 (s, 2 H) 7.23 – 7.40 (m, 5 H).

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 81927-55-1.

Reference:
Patent; SIGNAL PHARMACEUTICALS, LLC; WO2007/84560; (2007); A2;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

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.

a) S-Bromo-e-il-methyl-piperidin^-yloxyJ-imidazotl^-i lpyridazine To a suspension of NaH (60% in oil, 0.17 g, 4.31 mmol) in dry THF (5 mL) at 0 C was added a solution of 4-hydroxy-/V-methyl piperidine (0.50 g, 4.31 mmol) in dry THF (5 mL). The reaction mixture was stirred a 0C for 5 min then at RT for 15 min. The reaction mixture was cooled back to 0C and a solution of 3-bromo-6-chloroimidazo[1 ,2- ?>]pyridazine (0.50 g, 2.15 mmol) in dry THF (10 mL) was added dropwise. The reaction mixture was then allowed to warm up slowly to RT and stirred for 4 h. The reaction mixture was quenched by addition of water (10 mL), diluted with EtOAc (100 mL) and washed with water (2 x 50 mL). The organic layer was dried and concentrated in vacuo. Purification by column chromatography (EtOAc-2M NH3 in MeOH 5-100%) gave a solid (0.35 g, 53%); 1H NMR (400 MHz, DMSO-d6) delta ppm 8.04 (d, J=9.6 Hz, 1 H), 7.73 (s, 1H), 6.93 (d, J=9.6 Hz, 1 H), 4.99 (m, 1 H), 2.75-2.56 (m, 2H), 2.27-2.13 (m, 5H), 2.13-2.01 (m, 2H), 1.90-1.65 (m, 2H); m/z (ES+APCI)+: 311/313 [M+H]+.

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:
Patent; MEDICAL RESEARCH COUNCIL TECHNOLOGY; OSBORNE, Simon; CHAPMAN, Timothy; LARGE, Jonathan; BOULOC, Nathalie; WALLACE, Claire; WO2011/101640; (2011); 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. 1996-30-1, name is 3-Bromo-4-fluorochlorobenzene, A new synthetic method of this compound is introduced below., 1996-30-1

A mixture of 2-30 (1.04 g, 5 mmol), (PinB)2 (2.28 g, 9 mmol), Pd(dppf)C12DCM (408 mg, 0.5 mmol), KOAc (980 mg, 10 mmol) and dioxane (5 mL) was degassed with N2 and stirred at 95 C overnight. The resulting mixture was filtered and the filtrate was concentrated and purified by column chromatography on silica gel eluting with PE/ethyl acetate from 20/1 to 10/1 to provide intermediate 2-31 (806 mg, 63% yield) as a yellow solid. LCMS (m/z): 173 [M-H-82j -.

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; DANA-FARBER CANCER INSTITUTE, INC.; FONDAZIONE CENTRO SAN RAFFAELE; GRAY, Nathanael S.; BUHRLAGE, Sara; ANDERSON, Kenneth; COTTINI, Francesca; TONON, Giovanni; (288 pag.)WO2016/161145; (2016); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics