Chlorides-buliding-blocks

Electric Literature of 14862-52-3,Some common heterocyclic compound, 14862-52-3, name is 3,5-Dibromochlorobenzene, molecular formula is C6H3Br2Cl, 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.

3,5-dibromochlorobenzene (2.7 g, 10 mmol), 9-phenylcarbazole-3-boronic acid (6.0 g, 21 mmol), sodium carbonate(10.2 g, 96 mmol), Pd2 (dba) 3 (0.4 g, 0.4 mmol), 50 mL each of toluene, ethanol and water The reaction flask was refluxed under nitrogen for 10 hours and cooled to room temperature. The aqueous layer was washed with ethyl acetate The organic layers were separated and washed with saturated brine and water. The organic layer was dried over magnesium sulfate, filtered, The filtrate was spin dried and passed through a silica gel column to give 4.4 g of product, HPLC purity 99.2%.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3,5-Dibromochlorobenzene, its application will become more common.

Reference:
Patent; CECEP Wanrun Co., Ltd.; Li Chong; Yu Kaichao; Zhang Zhaochao; (39 pag.)CN107056807; (2017); A;,
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Related Products of 38762-41-3, 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. 38762-41-3, name is 4-Bromo-2-chloroaniline belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: A 25 mL RBF was subsequently charged with 1.0 mmol aromatic amines, 1.0 mmol 4-hydroxybutan-2-one, 10 mol% I2 (25.4 mg), 2mL DMSO. The resulting mixture was performed at room temperature for 8 h. After reaction was complete, the resulting mixturewas poured into water (20 mL) and extracted with ethyl acetate (3 x10 mL). The combined organic extracts were washed with brine (3 5 mL), then dried over Na2SO4 and concentrated in vacuum. The resulting residue was purified by silica gel columnchromatography (ethyl acetate/petroleum ether 1:20-1:4) to afford the desired products.

The synthetic route of 4-Bromo-2-chloroaniline has been constantly updated, and we look forward to future research findings.

Reference:
Article; Miao, Changqing; Jiang, Liya; Ren, Lanhui; Xue, Qingxia; Yan, Fang; Shi, Weiwei; Li, Xinjian; Sheng, Jiwen; Kai, Shuangshuang; Tetrahedron; vol. 75; 14; (2019); p. 2215 – 2228;,
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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. 102-49-8, name is 3,4-Dichlorobenzylamine, This compound has unique chemical properties. The synthetic route is as follows., Product Details of 102-49-8

General procedure: EDC hydrochloride (1.2 mmol) and HOBt (1.0 mmol) were added at 0 °C to each parallel vial containing a solution of the appropriate acid 44-53 (1 mmol) in dichloromethane, and either cyclohexylamine or 2,3-dichlorobenzylamine (1.5 mmol) was added at the same temperature. After warming up to room temperature, the vials were placed in the Buechi Syncore reactor. Stirring was maintained at 300 rpm overnight and then morpholinomethylpolystyrene (3 equiv/mol) was added. The solutions were kept at room temperature for 1 h, then polymer bound p-toluenesulfonic acid (3 equiv/mol) was added to each vial, and the reaction mixtures were stirred at room temperature for an additional 24 h. The mixtures were filtered and the solutions were evaporated to dryness to give carboxamides 6-25. Solid products were purified by crystallization from ethanol or aqueous ethanol. Oil products were purified by silica gel column chromatography column (dichloromethane as eluent).

According to the analysis of related databases, 102-49-8, the application of this compound in the production field has become more and more popular.

Reference:
Article; Piscitelli, Francesco; Ligresti, Alessia; La Regina, Giuseppe; Gatti, Valerio; Brizzi, Antonella; Pasquini, Serena; Allar, Marco; Carai, Mauro Antonio Maria; Novellino, Ettore; Colombo, Giancarlo; Di Marzo, Vincenzo; Corelli, Federico; Silvestri, Romano; European Journal of Medicinal Chemistry; vol. 46; 11; (2011); p. 5641 – 5653;,
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These common heterocyclic compound, 2613-32-3, name is 2-Chloro-4,5-difluoroaniline, 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. name: 2-Chloro-4,5-difluoroaniline

1-Chlor-1-dimethylamino-2-methyl-1-propen (64.9 mg, 0.486 mmol) was added to a solution of trans-4-[(pyrazolo[1 ,5-a]pyrim idin-3-ylcarbonyl)am ino]cyclohexanecarboxylic acid (70.0 mg, 0.243 mmol) in dichloromethane (3.1 ml) and the mixture was stirred at roomtemperature for 30 mi Pyridine (59 p1, 0.0.73 mmol) and 2-chloro-4,5-difluoroaniline (39.7 mg, 0.243 mmol, GAS No 261 3-32-3) were added and the mixture was stirred over night at room temperature. For work-up, water was added and the reaction mixture was extracted with dichloromethane. Die organic phase was filtrated through a silicone filter, concentrated and the residue purified by preparative HPLG (Method 9) to yield the title compound (3.8 mg,4% yield).LG-MS (Method 2): R = 1 .10 mm; MS (ESIpos) m/z = 434.1 [M+H].1HNMR (400 MHz, DMSO-d6): 6 [ppm] = 9.62 (5, 1H), 9.32 (dd, 1H), 8.83 (dd, 1H), 8.58 (5,1H), 7.86-7.76 (m, 3H), 7.28 (dd, 1H), 3.90-3.76 (m, 1H), 2.12-1.91 (m, 4H), 1.66-1.50 (m,2H), 1.45-1.31 (m, 2H).

The synthetic route of 2-Chloro-4,5-difluoroaniline has been constantly updated, and we look forward to future research findings.

Reference:
Patent; BAYER PHARMA AKTIENGESELLSCHAFT; EIS, Knut; ACKERMANN, Jens; WAGNER, Sarah; BUCHGRABER, Philipp; SUeLZLE, Detlev; HOLTON, Simon; BENDER, Eckhard; LI, Volkhart; LIU, Ningshu; SIEGEL, Franziska; LIENAU, Philip; BAIRLEIN, Michaela; VON NUSSBAUM, Franz; HERBERT,Simon; KOPPITZ, Marcus; (734 pag.)WO2016/177658; (2016); A1;,
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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. 108-41-8, name is 1-Chloro-3-methylbenzene belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. category: chlorides-buliding-blocks

General procedure: In the test tube were placed 7% Pd/WA30 (19.0 mg, 12.5 mumol), the aryl chloride (250 mumol), the arylboronic acid (375 mumol), Cs2CO3 (163 mg, 500 mumol), and DMA (1 mL). The mixture was stirred at 80 C under an Ar atmosphere. The reaction progress was monitored by TLC analysis (hexane-EtOAc, 5:1). When the reaction was completed within 24 h, the mixture was cooled to r.t., diluted with Et2O (5 mL), and passed through a cotton filter. The catalyst on the filter was washed with Et2O (2 × 15 mL) and H2O (3 × 10 mL). The combined filtrate was separated into two layers. The aqueous layer was extracted with Et2O (20 mL), and the combined organic layers were washed with H2O (4 × 20 mL) and brine (20 mL), dried over Na2SO4, filtered, and concentrated in vacuo. To the residue was added CDCl3 (ca. 1 mL) and 1,4-dioxane (8.53 muL, 100 mumol). After the determination of the reaction yield by 1H NMR, the product was purified by silicagel column chlomatography using hexane-EtOAc (10:1) as eluents to give the corresponding biaryl. When the reaction was incomplete after 24 h, the reaction mixture was treated in the same manner as described above.

The synthetic route of 108-41-8 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Monguchi, Yasunari; Ichikawa, Tomohiro; Netsu, Moeko; Hattori, Tomohiro; Mizusaki, Tomoteru; Sawama, Yoshinari; Sajiki, Hironao; Synlett; vol. 26; 14; (2015); p. 2014 – 2018;,
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Electric Literature 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.

Step 3: Synthesis of t-butyl (2-chloroethyl)carbamate: 28.7 g (249 mmol) of 2-chloroethylamine hydrochloride was dissolved in 300 ml of dichloromethane. 41 g (192 mmol) of di-t-butyl dicarbonate and 80 ml (576 mmol) of triethylamine were added to the obtained solution, and they were stirred overnight. After the treatmentwith dichloromethane as the extraction solvent in an ordinary manner, the title compound was obtained. Yield: 41 g (229 mmol) (92 %) H-NMR (CDCl3) delta 1.43 (9H, s), 3.41 (2H, dt), 3.59 (2H, t), 4.95 (1H, br)

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; Ajinomoto Co., Inc.; EP1065200; (2001); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthetic Route of 363-51-9,Some common heterocyclic compound, 363-51-9, name is 2-Chloro-6-fluoroaniline, molecular formula is C6H5ClFN, 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: A Schlenk tube was charged with Oxone (0.398 g, 0.648mmol) and trifloroacetic acid (0.099 mL, 1.296 mmol) in anhydrous dioxane (2 mL) under argon. To this mixture was added 2-fluoroaniline (0.06 g, 0.54 mmol), and the reaction mixture was heated to 90 C under argon until starting material was consumed. As the reaction progressed, the color turned from lightred to dark red. The mixture was then cooled to room temperature and washed with a saturated aqueous sodium bicarbonate.The mixture was extracted with EtOAc (2 × 20 mL) and the combined organic layers were dried over Na2SO4. After filtering andremoval of the solvent under reduced pressure in vacuo, theresidue was purified by silica gel (100-200 mesh) column chromatography(hexane-EtOAc, 9:1), to afford a pale-brown solid(65%) of 2-hydroxy-N-trifluoroacetanilides from 2-fluoroaniline(2a).

The synthetic route of 363-51-9 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Venkateswarlu, Vunnam; Balgotra, Shilpi; Aravinda Kumar; Vishwakarma, Ram A.; Sawant, Sanghapal D.; Synlett; vol. 26; 9; (2015); p. 1258 – 1262;,
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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. 886762-39-6, name is 3,4-Dichloro-2-fluoroaniline belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 3,4-Dichloro-2-fluoroaniline

1 .43 g of the compound obtained in (1-5), 1 .91 g of (R)-(-)-N-Boc-4- hydroxypiperidine and 1 .96 g of triphenylphosphine were added to 20 ml of methylene chloride, and 2.01 ml of diisopropylazodicarboxylate was added thereto dropwise. The resulting mixture was stirred at room temperature for 1 hour and distilled under a reduced pressure, and the residue was briefly purified by columnchromatography (ethylacetate : methylenechloride : methanol = 20 :20: 1). The partially purified residue was then dissolved in 60 ml of 2-propanol, 1 .17 g of 3,4- dichloro-4-fluoroaniline was thereto, and the mixture was stirred at 1 00 00 for 3 hours. The resulting mixture was distilled under a reduced pressure to remove the solvent, and the residue was dissolved in 60 ml of methylenechloride. 60 ml oftrifluoroacetic acid was added thereto and the mixture was stirred at room temperature for 1 hour. The resulting mixture was distilled under a reduced pressure to remove the solvent. Saturated sodium bicarbonate solution was added to the resulting residue to make it basic, followed by extraction with chloroform. The organic layer was dried over anhydrous sodium sulfate, filtered, and distilled under a reduced pressure. The resulting residue was subjected to column chromatography (chloroform : methanol = 1: 2) to obtain the title compound.

The synthetic route of 886762-39-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; SPECTRUM PHARMACEUTICALS, INC.; CHATURVEDUAL, Prasad, V.; KOLLI, Prasad; (46 pag.)WO2019/79599; (2019); 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. 64628-73-5, name is 3-Chloro-4-(trifluoromethoxy)aniline, This compound has unique chemical properties. The synthetic route is as follows., Computed Properties of C7H5ClF3NO

Reference Example 24 A solution of 3-chloro4-trifluoromethoxyaniline (5.1 g) in acetic acid (31 ml) was stirred and treated with sodium nitrite (2.16 g) in concentrated sulphuric acid (14 ml) at below 18 C. After an additional 1 hour at 10 C., the solution was added to a mixture of copper (I) bromide (7.7 g) and hydrobromic acid (24.5 ml) in water at 40-50 C. The reaction was completed by heating at 50 C. for 2 hours, water was added and the mixture filtered. The filtrate was extracted with ether, washed with sodium bicarbonate, dried (magnesium sulphate) and evaporated to give 3-chloro-4-trifluoromethoxy-bromobenzene (6.05 g) as a brown oil, NMR (CDCl3) 7.10(m,1H), 7.35(m,1H), 7.55(d,1H). By proceeding in a similar manner 2-nitro-4-trifluoromethoxy-bromobenzene was prepared, NMR (CDCl3) 7.35(m,1H), 7.75(m,1H), 7.8(d,1H).

According to the analysis of related databases, 64628-73-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Rhone-Poulenc Agriculture Limited; US6323155; (2001); 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. 13726-14-2, name is 4-Chloro-3-methoxyaniline, A new synthetic method of this compound is introduced below., category: chlorides-buliding-blocks

A mixture of substituted 2,4-dichloropyrimidine (1.0 equiv.), and substituted aniline (1.0-1.05 equiv.), and DIPEA (1.2 equiv.) in isopropanol (0.1 M) was stirred and heated at reflux. The reaction time, work-up, and product isolation procedure are described below. 2,5-Dichloro-/Y4-(4-chloro-3-methoxyphenyl)pyrimidin-4-amine (SG1-168): This was prepared from 2,4,5-trichloropyrimidine (0.500 g), 4-chloro-3-methoxyaniline (0.451 g), and DIPEA (0.570 mL) using procedure B (reaction time, 12 h). The solvent was removed and EtOAc (20 mL) was added. The organic layer was extracted with water (20 mL). The aqueous layer was re-extracted with EtOAc (20 mL). The organic layers were combined and washed with water and brine (20 mL each), dried (Na2S04) and concentrated under reduced pressure. The resulting dark purple oil was triturated using EtOAc/hexanes to give the title compound as a light purple solid (0.680 g, 82%). Mp: 136-138 C. NMR (400 MHz, DMSO-ifc): delta 9.57 (s, 1H, disappeared on D20 shake), 8.41 (s, 1H), 7.49 (d, / = 2.2 Hz, 1H), 7.41 (d, / = 8.6 Hz, 1H), 7.28 (dd, / = 8.6, 2.2 Hz, 1H), 3.82 (s, 3H). HPLC-MS (ESI+): m/z 308.1 [40%, (M35C137C137C1+H)+], 306.1 [98%, (M35C135C137C1+H)+], 304.0 [100%, (M35C135C135C1+H)+].

The synthetic route of 13726-14-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; H. LEE MOFFITT CANCER CENTER & RESEARCH INSTITUTE, INC.; SCHOeNBRUNN, Ernst; LAWRENCE, Nicholas J.; LAWRENCE, Harshani R.; (293 pag.)WO2017/66428; (2017); A1;,
Chloride – Wikipedia,
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