Chlorides-buliding-blocks

Reference of 89794-02-5, 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. 89794-02-5, name is 4-Bromo-2-chlorotoluene, This compound has unique chemical properties. The synthetic route is as follows.

General procedure: 10.0 mmol of the specified boronic ester (I; R1), 30.0 mmol of magnesium turnings and 10.0 mmol of the salt (II) were suspended in a mixture of 3.40 g of anhydrous toluene and 0.73 g of anhydrous tetrahydrofuran in a dry four-neck flask with a mechanical stirrer, thermometer, metal condenser and pressure-equalized dropping funnel under a nitrogen atmosphere, and stirred vigorously for 30 min. The appropriate haloaromatic (III, R4) was added to this solution, at first in undiluted form, until the onset of exothermicity signals the start of the reaction. The remaining total amount of 30.6 mmol of haloaromatic was diluted with 10.0 g of anhydrous toluene and 10.0 g of anhydrous tetrahydrofuran and added dropwise at such a rate that the internal temperature does not exceed 45 C. On completion of addition, the reaction mixture was heated at reflux for 1 h or until the dissolution of the magnesium was complete. The resulting suspension was discharged onto 50 g of ice-water, and the resulting solids are isolated, washed with cold water and dried under reduced pressure. Examples 15, 18, 20 and 27 and 46-52 were extracted from the aqueous phase with 100 ml of ethyl acetate, the solvent was distilled off under reduced pressure and the resulting oils were isolated. The isolated yield for Example 1 that was prepared by this method was 2.87 g (72% of theory), whereas Example 1 prepared according to DE 198 50 139 A1 was obtained in a yield of 47% of theory.The composition of Examples 1-76 and selected physical properties are summarized in Table 2.

The chemical industry reduces the impact on the environment during synthesis 4-Bromo-2-chlorotoluene. I believe this compound will play a more active role in future production and life.

Reference:
Patent; Covestro Deutschland AG; ROeLLE, Thomas; BERNETH, Horst; HOeNEL, Dennis; BRUDER, Friedrich-Karl; (34 pag.)US2019/276479; (2019); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Reference of 7781-10-4,Some common heterocyclic compound, 7781-10-4, name is 4-Chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine, molecular formula is C7H6ClN3, 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 part of the resulted N-methylated compound (500 mg, 2.98 mmol) was dissolved in 5 ml abs. THF and cooled down to -78 C. Then 2M LDA (1.7 ml, 3.4 mmol) was added dropwise. The mixture was stirred at -78C for 1 hour, then iodide (757 mg, 2.98 mmol)was added. The solution was allowed to warm to r.t. and stirred for 22 hours, then 5 mlwater was added. Solid compound was formed and filtered off to give Preparation R2aj.HRMS calculated for C7H61N30: 274.9556; found 275.9634 [(M+H)+ form].1H-NMR(500 MHz, dmso-d6) oe ppm 11.97 (s, 1 H), 7.85 (s, 1 H), 6.79 (s, 1 H), 3.64 (s, 3H)13C-NMR(500 MHz, dmso-d6) oe ppm 157.3, 149.1, 144.2, 111.4, 110.3, 80.4, 33.2

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-7-methyl-7H-pyrrolo[2,3-d]pyrimidine, its application will become more common.

Reference:
Patent; LES LABORATOIRES SERVIER; VERNALIS (R&D) LIMITED; KOTSCHY, Andras; WEBER, Csaba; VASAS, Attila; MOLNAR, Balazs; KISS, Arpad; MACIAS, Alba; MURRAY, James Brooke; LEWKOWICZ, Elodie; GENESTE, Olivier; CHANRION, Maia; DEMARLES, Didier; (105 pag.)WO2017/212012; (2017); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Related Products of 261762-56-5, 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. 261762-56-5, name is 1-Chloro-2-fluoro-3-methoxybenzene belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Example 3 5-{[1-(2-Chloro-3-fluoro-4-methoxyphenyl)-3,3,3-trifluoro-2-hydroxy-2-([methylsulfanyl]methyl)propyl]amino}-1H-quinolin-2-one2-Chloro-3-fluoro-4-methoxybenzaldehyde; 1 g (6.2 mmol) 3-Chloro-2-fluoroanisole in 20 ml THF are cooled to -70 C. and 2.7 ml of a 2.5 M n-butyl lithium solution in hexane are added. After one hour at -70 3.93 ml DMF in 7 ml THF are added at -70 C. and the mixture is stirred another hour at -70 C. 15 ml of a 1 M aqueous HCl are added and the reaction is warmed to ambient temperature over 18 hours. The reaction mixture is partitioned between diethyl ether and water. The aqueous phase is extracted with diethyl ether, the combined organic phases are washed with brine, dried over sodium sulfate and evaporated. The crude product is purified by chromatography on silica gel to yield 0.25 g 2-chloro-3-fluoro-4-methoxybenzaldehyde. 1H-NMR (CDCl3); delta=3.98 (s, 3H), 6.98 (dd, 1H), 7.75 (dd, 1H), 10.30 (s, 1H).

The synthetic route of 1-Chloro-2-fluoro-3-methoxybenzene has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Berger, Markus; Rehwinkel, Hartmut; Zollner, Thomas; May, Ekkehard; Hassfeld, Jorna; Schacke, Heike; US2009/137564; (2009); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 4863-91-6, name is 3-Chloro-5-fluoroaniline, 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 4863-91-6, COA of Formula: C6H5ClFN

Example 1: Synthesis of N-(3-chloro-5-fluorophenyl)-4 nitrobenzo[c] [1,2,5] oxadiazol-5-amine Compound 1 [093] 5-Chloro-4-nitrobenzo[c][l,2,5]oxadiazole (1 15 mg, 0.58 mmol) was combined with 3-chloro-5-fluoroaniline (83.7 mg, 0.58 mmol) in DMF (0.55 mL), and the mixture was heated at 110C for 1.25 hours. The mixture was cooled to ambient temperature, resulting in the formation of a solid mass. This solid was resuspended in ethyl acetate and transferred to a larger volume of ethyl acetate (100 mL). This was sonicated to completely dissolve the solids. The organic layer was washed 5 times with water (50 mL) and brine, separated, and dried over Na2S04, then filtered and concentrated in vacuo. The resultant yellow solid was resuspended in ethyl acetate (3 mL), and filtered. The solids were washed with fresh ethyl acetate, and air-dried. N-(3-chloro-5-fluorophenyl)-4-nitrobenzo[c][l,2,5]oxadiazol-5-amine was obtained as a free-flowing yellow solid, (122 mg, 69%).

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

Reference:
Patent; THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM; BRUICK, Richard, K.; CALDWELL, Charles, G.; FRANTZ, Doug, E.; GARDNER, Kevin, H.; MACMILLAN, John, B.; SCHEUERMANN, Thomas, H.; TAMBAR, Uttam, K.; WO2014/78479; (2014); A2;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Some common heterocyclic compound, 13918-92-8, name is 2,4-Difluorobenzene-1-sulfonyl chloride, molecular formula is C6H3ClF2O2S, 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. Application In Synthesis of 2,4-Difluorobenzene-1-sulfonyl chloride

General procedure: To 5-(5-(5-Aminopyridin-3-yl)thiophen-2-yl)-2-methyl- isoindolin-1-one (49) (225 mg, 0.79 mmol) in dry pyridine (23 mL) under N2 at RT,was added dropwise, 2,4-difluorobenzenesulphonyl chloride (336 mg, 1.58 mmol) in CH2Cl2(3 mL) over 5 min. The suspension was heated to 45 C under N2 for 4 h., at which pointanother portion of 2,4-difluorobenzenesulphonyl chloride (169 mg, 0.79 mmol) in CH2Cl2 (2mL) was added. The whole mixture was left to stir for at 45 C under N2 for 16 h., then thesolvent removed under reduced pressure. The resulting residue was suspended in acetone (10mL), 1 M HCl (20 mL) added, and the entire mixture stirred for 10 minutes. The solid wasthen collected by filtration, washed well with 1 M HCl and water, dried, and purified bychromatography as described below. In cases where the bis-sulphonamide was also formed, a second step was introduced wherethe crude product above was treated with a 1:1 mixture of 1,4-dioxane and 2 M NaOH. Thecrude sulphonamide resulting from subsequent acidification of the reaction mixture wasisolated by filtration, washed well with water, and dried. Purification was carried out by flashcolumn chromatography (2% MeOH/CH2Cl2 as eluant), giving the title compound as a paleyellow solid (211 mg, 545).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 13918-92-8, its application will become more common.

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.; Bioorganic and Medicinal Chemistry Letters; vol. 27; 4; (2017); p. 1050 – 1054;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Application of 29671-92-9,Some common heterocyclic compound, 29671-92-9, name is Carbamimidic chloride hydrochloride, molecular formula is CH4Cl2N2, 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.

3.0 g of Arnold salt was added to 15 ml of methanol and 5 ml of water.Thereafter, 0.73 g of chloroformamidine hydrochloride and 0.53 g of sodium hydrogencarbonate were added thereto.The temperature was raised to 50 C to react. After 6 h of reaction, water was added to the system, and ethyl acetate was extracted.The opposite of water,The combined organic layers were washed with water, dried over anhydrous sodium sulfate and evaporatedThe yield was 83%.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route Carbamimidic chloride hydrochloride, its application will become more common.

Reference:
Patent; Anhui Haofan Biological Co., Ltd.; Lu Xuegen; Zhang Haiyan; Li Honglin; (6 pag.)CN109928933; (2019); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 203302-92-5, A common heterocyclic compound, 203302-92-5, name is 3-Bromo-2-chloro-6-fluorotoluene, molecular formula is C7H5BrClF, 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.

11. Reactions which are covered by Scheme 11; Example 11.1 : Preparation of (3-bromo-2-chloro-6-fluoro-phenyl)-acetic acid; Step 1; 3-Bromo-2-chloro-6-fluoro-toluene (8.0 g), N-bromosuccinimide (NBS) (6.42 g) and a catalytic amount of benzoyl peroxide in carbon tetrachloride (40 ml) were heated to reflux. A 500 watt tungsten halogen lamp was used to initiate the reaction. The reaction mixture was heated to reflux and irradiated for 30 minutes. The reaction mixture was allowed to cool and then filtered. The filtrate was concentrated to give a colourless oil which solidified on standing to give l-bromo-3-bromornethyl-2-chloro-4-fluorobenzene as an off-white solid (10.7 g). 1H NMR (CDCl3): 4.64 (d, 2H), 6.94 (t, IH), 7.58 (dd, IH) ppm.

The synthetic route of 203302-92-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; SYNGENTA LIMITED; WO2008/9908; (2008); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electric Literature of 3972-56-3, 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. 3972-56-3, name is 1-tert-Butyl-4-chlorobenzene belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Rh(ttp)Cl (1a) (10.0 mg, 0.012 mmol) and KOH (7.0 mg,0.125 mmol) were added in 4-chloro-tert-butylbenzene (2d)(1.0 mL). The red mixture was degassed for three freeze-thawpumpcycles, purged with N2 and heated at 150 C under N2 for 1day. Excess 4-chloro-tert-butylbenzene was removed by vacuumdistillation. The red residue was purified by column chromatographyon silica gel eluting with a solvent mixture of hexane/CH2Cl2(1:1). Red solid Rh(ttp) (4-tert-butylphenyl) (3d) [11] (9.2 mg,0.010 mmol, 85percent) was collected. Rh(ttp) (4-tert-butylphenyl) (3d)1H NMR (CDCl3, 400 MHz) d 0.23 (d, 2H, J 8.5 Hz), 0.35 (s, 9H),2.70 (s, 12H), 4.80 (d, 2H, J 8.8 Hz), 7.53 (t, 8H, J 6.4 Hz), 8.03 (d,4H, J 7.2 Hz), 8.08 (d, 4H, J 7.5 Hz), 8.78 (s, 8H).

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-tert-Butyl-4-chlorobenzene, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Qian, Ying Ying; Lee, Man Ho; Yang, Wu; Chan, Kin Shing; Journal of Organometallic Chemistry; vol. 791; (2015); p. 82 – 89;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 10061-02-6, 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 10061-02-6 as follows.

EXAMPLE 1; 382 g (406 ml) of DMF were initially charged in a Schmizzo and 137 g (141 ml) of 1.0 eq. NaOMe (30% solution in methanol) were added. This mixture was then heated to 60 C. (+/-3 C.) and 131 g (0.753 mol) of dimethyl isopropylmalonate were metered in within one hour. Subsequently, a methanol/DMF mixture (201 g) was distilled off under pressure (300 mbar to 60 mbar) and a temperature of 60 C.Thereafter, at 80 C. (+/-3 C.), 86 g (79 ml, 0.779 mol, 1.03 eq.) of 1,3-dichloropropene were metered in within one hour and the reaction mixture was then heated at 80 C. (+/-3 C.) for two hours. The reaction mixture was heated to 140 C. and a 25% solution of LiCl (0.6 eq.) in methanol (19 g of LiCl in 58 g of methanol) was metered in within two hours, and the reaction mixture was heated at 140-142 C. for a further 6 hours, in the course of which a portion of the methanol was distilled off and approx. 1.5 mol of gas (mainly CH3Cl and CO2) formed. The maximum amount of gas in the first half hour was approx. 6 liters. On completion of reaction, the solvent (DMF) and the excess methanol were distilled off substantially fully under reduced pressure. The remainder was admixed with 200 g of water, 89 g of 34% HCl and 200 g of MTBE, and the phases were separated. The organic phase was washed lx with 50 g of water and the solvent was removed under reduced pressure. Approx. 140 g of product were obtained, of which approx. 125 g were ester and 13 g the corresponding acid.

According to the analysis of related databases, 10061-02-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; DSM Fine Chemicals Austria NFG GMBH & Co KG; US2008/207943; (2008); 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 39885-50-2 as follows. Quality Control of 2-Chloro-4-(trifluoromethyl)aniline

EXAMPLE 59 8-Chloro-N-((4-chlorophenyl)methyl)-4-hydroxy-5-trifluoromethyl-3-quinolinecarboxamide [] A mixture of 2-chloro-5-trifluoromethylaniline (3.91 g) and diethyl ethoxymethylenemalonate (4.0 mL) is heated at 190°C for 2 h and is then diluted with diphenyl ether (30 mL). The mixture is allowed to cool to rt, filtered, and the white solid is washed with hexane (2 x 10 mL) to afford 1.632 g of the diethyl aminomethylenemalonate. The resulting intermediate (2.63 g) is suspended in diphenyl ether (30 mL) and heated to reflux with a Dean-Stark trap for 3 h. The mixture is allowed to cool to rt and is then poured into hexane (50 mL). The solid is filtered and then washed with hexane (20 mL) and hexane/diethyl ether (1/1, 20 mL) to afford 1.273 g of the quinolinecarboxylate ethyl ester. The ester (400 mg) and 4-chlorobenzylamine (1.52 mL) are heated at 190 °C for 1 h. The resulting mixture is diluted with toluene (4 mL), allowed to cool to rt, and then poured into hexane (50 mL). The solvent is decanted and the remaining oil is crystallized (acetic acid, water) to afford 285 mg of the title compound as a brown solid. Physical characteristics are as follows: Mp 270-1 °C.1H NMR (300 MHz, DMSO) delta 12.33, 10.06, 8.68, 8.10, 7.86, 7.36, 4.52.13C NMR (100 MHz, DMSO) delta 175.05, 164.07, 144.36, 139.12, 138.20, 132.42, 131.85, 129.84, 128.77, 128.44, 126.70 (q), 125.84, 125.20, 122.22, 113.75, 42.00.IR (mull) 3187, 3091, 2925, 2855, 1657, 1604, 1567, 1531, 1462, 1417, 1377, 1366, 1348, 1307, 1272, 1210, 1158, 1139, 1128, 1106, 854, 841, 802, 726 cm-1.Anal. Found: C, 52.12; H, 2.78; N, 6.70; Cl, 16.85.MS (ESI-) for C18H11Cl2F3N2O2m/z 412 (M-H)-.

According to the analysis of related databases, 39885-50-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Pharmacia & Upjohn Company LLC; EP1042295; (2005); B1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics