Iodides-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. 229178-74-9, name is 2,6-Difluoro-3-iodobenzoic acid, This compound has unique chemical properties. The synthetic route is as follows., HPLC of Formula: C7H3F2IO2

To a mixture of 2,6-difluoro-3-iodobenzoic acid 3 (2.84 g, 10.0 mmol) in methanol (30 mL) was added SOCl2 (0.1 mL) dropwise at 0 C. After being stirred at reflux for 3 h, the mixture was concentrated under reduced pressure. The residue was purified by column chromatography (silica gel, petroleum ether/ethyl acetate 15:1 to 10:1, v/v) to give the desired compound 4 as a white solid (2.75 g, 92%): mp 54-55 C (lit.6 mp 53-55 C); 1H NMR (CDCl3) delta 3.95 (s, 3H, CH3), 6.78-6.82 (t, 1H, J = 8.4 Hz, ArH), 7.78-7.83 (m, 1H, ArH); 13C NMR (CDCl3) delta 53.10, 75.42, 75.46, 75.69, 75.73 (dd, JC-F = 4.2, inlMMLBox = 26.8 Hz), 111.49, 111.69, 111.89 (t, JC-F = 19.8 Hz), 113.81, 113.84, 114.03, 114.07 (dd, JC-F = 3.9, inlMMLBox = 22.4 Hz), 141.42, 141.45, 141.51, 141.54 (dd, JC-F = 3.1, inlMMLBox = 9.4 Hz), 157.99, 158.05, 160.52, 160.58 (dd, JC-F = 6.2, inlMMLBox = 252.6 Hz), 159.48, 159.53, 162.04, 162.09 (dd, JC-F = 5.1, inlMMLBox = 256.2 Hz), 161.16; GC-MS: 298 M+.

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 229178-74-9.

Reference:
Article; He, Qiu-Qin; Gu, Shuang-Xi; Liu, Jia; Wu, Hai-Qiu; Zhang, Xuan; Yang, Liu-Meng; Zheng, Yong-Tang; Chen, Fen-Er; Bioorganic and Medicinal Chemistry; vol. 19; 16; (2011); p. 5039 – 5045;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Electric Literature of 957193-64-5, The chemical industry reduces the impact on the environment during synthesis 957193-64-5, name is 7-Iodo-3,4-dihydropyrido[2,3-b]pyrazin-2(1H)-one, I believe this compound will play a more active role in future production and life.

C) 7-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-3,4-dihydropyrido[2,3-b]pyrazin-2(1H)-one Under nitrogen atmosphere, to a solution of 7-iodo-3,4-dihydropyrido[2,3-b]pyrazin-2(1H)-one (12.5 g) in a mixed solvent of N,N-dimethylformamide (200 mL) and dimethyl sulfoxide (600 mL) was slowly added 1 M potassium 1,1,1,3,3,3-hexamethyldisilazane/tetrahydrofuran solution (63.6 mL) under ice-cooling. The reaction mixture was stirred at 0C for 30 min, and [2-(chloromethoxy)ethyl](trimethyl)silane (11.3 mL) was slowly added thereto at the same temperature. The reaction mixture was stirred at room temperature for 2 hr, and the solvent was evaporated under reduced pressure. To the residue was added aqueous sodium carbonate solution, and the mixture was extracted with ethyl acetate. The extract was washed successively with water and saturated brine, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (dichloromethane/ethyl acetate) to give the title compound (6.86 g). 1H NMR (400 MHz, DMSO-d6) delta 0.01 (9H, s), 0.90 (2H, t, J = 7.6 Hz), 3.59 (2H, t, J = 8.0 Hz), 4.07 (2H, d, J = 1.6 Hz), 5.31 (2H, s), 7.55 (1H, d, J = 1.6 Hz), 7.92 (1H, d, J = 2.0 Hz).

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, 7-Iodo-3,4-dihydropyrido[2,3-b]pyrazin-2(1H)-one, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Takeda Pharmaceutical Company Limited; MIKAMI, Satoshi; NAKAMURA, Shinji; ASHIZAWA, Tomoko; SASAKI, Shigekazu; TANIGUCHI, Takahiko; NOMURA, Izumi; KAWASAKI, Masanori; EP2848618; (2015); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. 141738-80-9, name is 3-Chloro-4-iodobenzotrifluoride, A new synthetic method of this compound is introduced below., category: iodides-buliding-blocks

Step A: Diboron pinacol ester (329.61mg, 1.30mmol, 1.10eq) and tetrakis(triphenylphosphine)platinum(73.53mg, 59.09umol, 0.05eq) were added to a solution of compound 10 (200.00mg, 1.18mmol, 1.00eq) in 2-methyltetrahydrofuran(5.00mL), the reaction solution was purged three times with nitrogen and stirred at 70C under nitrogenatmosphere for 5 hours. After the reaction solution was cooled to 0C, compound 5 (285.58mg, 945.27umol, 0.80eq),cesium carbonate (769.97mg, 2.36mmol, 2.00eq), 0.4mL water, 5mL 2-methyltetrahydrofuran and dichlorobis(triphenylphosphine)palladium (41.47mg, 59.08umol, 0.05eq) were added, then the reaction solution was purged three timeswith nitrogen and stirred at 20C under nitrogen atmosphere for 12 hours. Then 2-chloro-4-trifluoromethyl iodobenzene(717.09mg, 2.34mmol, 2.00eq), aqueous potassium hydroxide (4M, 1.46mL, 5.00eq), dichlorobis(triphenylphosphine)palladium (41.06mg, 58.50umol, 0.05eq) and 10mL 2-methyltetrahydrofuran were added to the reaction solution,which was subsequently purged three times with nitrogen. After stirring at 70C under nitrogen atmosphere for 12 hours,the reaction solution was filtered through celite, concentrated and purified by silica gel column chromatography(PE:EA=40:1 to 15:1) to give the compound 47 as a yellow jelly (738.00mg), which was directly used in the next step.

The synthetic route of 141738-80-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Luoxin Biotechnology (Shanghai) Co., Ltd.; Shandong Luoxin Pharmaceutical Group Stock Co., Ltd.; LU, Jianyu; DING, Charles Z.; HU, Lihong; HE, Huijun; CHEN, Shuhui; DONG, Jiaqiang; WANG, Tie-lin; (124 pag.)EP3434668; (2019); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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 7212-28-4 as follows. Recommanded Product: 2-Iodo-N-phenylacetamide

General procedure: 0.3 g (1.56 mmol) of 7, 1.87 mmol of 3a-j and 0.32 g (2.34 mmol) of K2CO3 were combined and refluxed in 20 ml of acetone for 2 h. The solvent was evaporated under reduced pressure and the crude product was washed with water, filterred and dried. The pure product was obtained by recrystallization from petroleum ether and ethyl acetate.

According to the analysis of related databases, 7212-28-4, the application of this compound in the production field has become more and more popular.

Reference:
Article; Liu, Wukun; Hua, Jie; Zhou, Jinpei; Zhang, Huibin; Zhu, Haiyang; Cheng, Yanhua; Gust, Ronald; Bioorganic and Medicinal Chemistry Letters; vol. 22; 15; (2012); p. 5008 – 5012;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. 203626-41-9, name is 1-Chloro-2-iodo-3-(trifluoromethyl)benzene belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Formula: C7H3ClF3I

Reference Production Example 31; To 9 ml of 1,4-dioxane was added 1.5 g of 2-iodo-3-chlorobenzo trifluoride, 1. 62 g of potassium carbonate, 0.17 g of tetrakis(triphenylphosphinepalladium) and 0.72 g of 4-pyridineboronic acid, and the mixture was stirred at 90C for 4 hours and at 120C for 10 hours. Thereafter, the resultant reaction mixture was poured into a saturated ammonium chloride aqueous solution, and the mixture was extracted with ethyl acetate three times. The organic layers obtained by extraction were combined and washed with saturated saline, dried over anhydrous magnesium sulfate, then, concentrated. The resultant residue was subjected to silica gel column chromatography to obtain 0.5 g of 4-(2-chloro-6-trifluoromethylphenyl)pyridine. [Show Image] 1H-NMR:7.18(d 2H),7.49(t,1H),7.69-7.73(m,2H),8.71(d,2H)

The synthetic route of 203626-41-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Sumitomo Chemical Company, Limited; EP2332936; (2011); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

These common heterocyclic compound, 239135-53-6, name is 2-Fluoro-4-iodo-1-(trifluoromethyl)benzene, 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: 239135-53-6

Intermediate 79: 3,4-bis(Benzyloxy)-6-[(E)-2-[3-fluoro-4-(trifluoromethyI)- phenyl]ethenyl]pyridazine A vessel containing 3,4-bis(benzyloxy)-6-ethenylpyridazine (Intermediate 78, 1.09 g, 3.42 mmol), tris-(2-methylphenyl)phosphane (0.208 g, 0.685 mmol), 2-f.uoro-4-iodo-l- (trifluoromethyl)benzene (1.191 g, 4.1 1 mmol) and palladium(II) acetate (0.038 g, 0.171 mmol) was evacuated and acetonitrile (10 ml) and triethylamine (9.07 ml, 65.1 mmol) were added in vacuo and then the mixture was flushed with nitrogen. The reaction was then heated in the microwave at 80 C for 4 hours and, upon cooling, was diluted with dichloromethane and washed with saturated aqueous ammonium chloride solution. The organics were dried ( gSC^), filtered and solvent removed in vacuo to give a brown oil which was purified by column chromatography (silica, eluting with 30- 100 % dichloromethane in petrol) to yield 3,4-bis(benzyloxy)-6-[(E)-2-[3-fiuoro-4- (trifluoromethyl)phenyl]ethenyl]pyridazine (1.1 g, 2.29 mmol, 67 % yield). 1H NMR (CDCI3) delta 7.53 – 7.68 (m, 3 H), 7.31 – 7.53 (m, 12 H), 6.97 (s, 1 H), 5.71 (s, 2 H) and 5.28 (s, 2 H). MS ES+: 481.

The synthetic route of 2-Fluoro-4-iodo-1-(trifluoromethyl)benzene has been constantly updated, and we look forward to future research findings.

Reference:
Patent; TAKEDA PHARMACEUTICAL COMPANY LIMITED; FARNABY, William; FIELDHOUSE, Charlotte; HAZEL, Katherine; KERR, Catrina; KINSELLA, Natasha; LIVERMORE, David; MERCHANT, Kevin; MILLER, David; WO2013/27000; (2013); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. 1032231-24-5, name is 2-Bromo-5-iodobenzaldehyde, This compound has unique chemical properties. The synthetic route is as follows., Safety of 2-Bromo-5-iodobenzaldehyde

Step 2: (2-bromo-5-iodophenyl)methanolTo a solution of 2-bromo-5-iodobenzaldehyde (12.4 g, 40 mmol) in MeOH (50 mL) was added NaBH4 (3 g, 80 mmol) at 0 C. After the addition, the reaction solution was stirred at rt for 30 minutes. The reaction solution was diluted with water (20 mL) and EtOAc (60 mL). The organic layer was separated and dried over anhydrous Na2S04. After removal of solvent, the residue was purified with column chromatography to afford (2-bromo-5- iodophenyl)methanol (3.5 g, 1 1 .2 mmol, 28 % yield) as a white solid.

According to the analysis of related databases, 1032231-24-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; GLAXO GROUP LIMITED; JOHNS, Brian Alvin; SHOTWELL, John Brad; HAIGH, David; WO2012/67663; (2012); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Adding a certain compound to certain chemical reactions, such as: 268568-11-2, name is Ethyl 2-amino-5-iodobenzoate, belongs to iodides-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 268568-11-2, Recommanded Product: 268568-11-2

General procedure: As a typical experiment, the reaction of 4-(trifluoromethyl)bromobenzene (0.225 g, 1 mmol), methyl 3-amino-4-methylthiophene-2-carboxylate (0.342 g, 2 mmol) and KOAc (0.196 g, 2 mmol) at 120 C during 20 h in DMAc (3 mL) in the presence of PdCl(C3H5)(dppb) (12.2 mg, 0.02 mmol) under argon affords methyl 3-amino-4-methyl-5-(4-trifluoromethylphenyl)-thiophene-2-carboxylate 1a after extraction with dichloromethane, evaporation and filtration on silica gel (pentane/ether) in 82% (0.258 g) yield.

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; Derridj, Fazia; Si Larbi, Karima; Roger, Julien; Djebbar, Safia; Doucet, Henri; Tetrahedron; vol. 68; 36; (2012); p. 7463 – 7471;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. 845866-78-6, name is 1-Bromo-3-iodo-5-(trifluoromethoxy)benzene, A new synthetic method of this compound is introduced below., COA of Formula: C7H3BrF3IO

Example A51 a) Preparation of intermediate Chloro-difluoro-acetic acid methyl ester (1.38 mL, 13.082 mmol) was added to a stirred mixture of l-bromo-3-iodo-5-trifluoromethoxybenzene (2 g, 5.451 mmol), potassium fluoride (380 mg, 6.541 mmol) and copper iodide (1.38 g, 6.541 mmol) in DMF (20 mL) in a sealed tube and under N2 atmosphere. The mixture was stirred at 120 C for 18 h, then it was diluted with water and extracted with Et20. The organic layer was separated, dried over MgSC^, filtered and the solvents evaporated in vacuo. The crude product was purified by flash column chromatography (silica; pentane). The desired fractions were collected and concentrated in vacuo (200 mbar) to yield a colourless oil (1.41 g, 83%, volatile compound).

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; JANSSEN PHARMACEUTICALS, INC.; ROMBOUTS, Frederik, Jan, Rita; TRABANCO-SUAREZ, Andres, Avelino; GIJSEN, Henricus, Jacobus, Maria; MACDONALD, Gregor, James; BISCHOFF, Francois Paul; ALONSO-de DIEGO, Sergio-Alvar; VELTER, Adriana, Ingrid; VAN ROOSBROECK, Yves, Emiel, Maria; WO2013/171712; (2013); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Synthetic Route of 1000802-34-5, 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 1000802-34-5 as follows.

To a solution of 6-iodobenzo[d][1,3]dioxol-5-amine (1 g, 3.8 mmol) and paraformaldehyde (1.14 g, 38 mmol) in methanol (10 mL) was added NaBH3CN (2.39 g, 38 mmol) slowly with stirring. The mixture was heated to 50 C. for 4 h. Water (100 mL) was added and extracted with methylene chloride (100 mL). The organic layer was washed with brine (100 mL), dried (MgSO4) and evaporated under vacuum to give crude title compound 0102-15 (1.16 g) as a brown oil which was used directly to the next step without further purification. LCMS: 292 [M+1]+; 1H NMR (DMSO-d6) delta 2.56 (s, 6H), 6.02 (s, 2H), 6.96 (s, 1H), 7.32 (s, 1H).

According to the analysis of related databases, 1000802-34-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Curis, Inc.; Cai, Xiong; Qian, Changgeng; (62 pag.)US2016/317508; (2016); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com