Tag: M.W=200-300

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 5876-51-7 as follows. Product Details of 5876-51-7

A suspension of 5-iodobenzo[d][1,3]dioxole (3.00 g, 12.10 mmol), ethynyltrimethylsilane (2.01 mL, 14.52 mmol), copper (_) iodide (115 mg, 0.61 mmol), bis(triphenylphosphine)palladium(II) dichloride (424 mg, 0.61 mmol), TEA (5.06 ml, 36.29 mmol) were stirred in THF (20 mL) at ambient temperature for overnight. The reaction solvent was evaporated under reduced pressure, and the residue was purified by column chromatography with hexane/ethyl acetate (10/1, v/v) to obtain the compound 40 (2.64 g, quant. yield): 1H NMR (400 MHz, CDCl3) _ 6.98 (dd, J = 8.1, 1.6 Hz, 1H), 6.89 (d, J =1.6 Hz, 1H), 6.70 (d, J = 8.0 Hz, 1H), 5.92 (s, 2H), 0.23 (s, 9H); 13C NMR (100 MHz, CDCl3) _ 148.1, 147.4, 126.8, 116.5, 111.9, 108.4, 105.1, 101.4, 92.3, 0.1.

According to the analysis of related databases, 5876-51-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM; DALBY, Kevin N.; EDUPUGANTI, Ramakrishna; TALIAFERRO, Juliana; LEE, Juhyeon; (0 pag.)WO2018/160967; (2018); A1;,
Iodide – Wikipedia,
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25245-27-6, name is 1-Iodo-3,5-dimethoxybenzene, belongs to iodides-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. Application In Synthesis of 1-Iodo-3,5-dimethoxybenzene

General procedure: Under an argon atmosphere, a Schlenk tube was charged with bpy-MCM-41-CuI (78 mg, 0.05 mmol), diaryl diselenide (0.25 mmol), aryl iodide (0.5 mmol), Mg turnings (24 mg, 1.0 mmol) and DMF (1.5 mL). The mixture was stirred at 110 C under Ar for 20-40 h. After completion of the reaction, the reaction mixture was cooled to room temperature, diluted with ethyl acetate (15 mL), and filtered. The bpy-MCM-41-CuI catalyst residue was washed with 1.0 M dilute hydrochloric acid (2 × 5 mL), water (2 × 5 mL), and acetone (2 × 5 mL) when being reused in another catalytic cycle. The filtrate was concentrated under reduced pressure and the residue was purified by flash column chromatography on silica gel (petroleum ether (60-90 C)/ethyl acetate) to provide the desired product 3. CAUTION: All reactions using selenium containing compounds should be carried out in a well-ventilated fume cupboard.

The synthetic route of 25245-27-6 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Zhao, Ruonan; Yan, Chenyu; Jiang, Yuanyuan; Cai, Mingzhong; Journal of Chemical Research; vol. 42; 11; (2018); p. 584 – 588;,
Iodide – Wikipedia,
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Electric Literature of 444-29-1, 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. 444-29-1 name is 1-Iodo-2-(trifluoromethyl)benzene, 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.

General procedure: To an oven-dried, Ar-flushed Schlenk flask, equipped with a magneticstir bar, was added a solution of Zn species 2 (2.0 mL, 0.5 Min THF, 1.0 mmol, 1.0 equiv). Pd(OAc)2 (4.5 mg, 0.02 mmol, 0.02equiv) and X-Phos (19 mg, 0.04 mmol, 0.04 equiv) were added, followedby aromatic halide substrate 3 (0.7 equiv). The mixture wasstirred at 50 °C for 1 h and then poured into a solution of NH4Cl?EtOAc (25 mL/25 mL). The crude product was separated and the aqphase extracted with EtOAc (3 × 25 mL). The combined organiclayers were dried over MgSO4, filtered and concentrated in vacuo.

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

Reference:
Article; Blanc, Romain; Groll, Klaus; Bernhardt, Sebastian; Stockmann, Paul N.; Knochel, Paul; Synthesis; vol. 46; 8; (2014); p. 1052 – 1058;,
Iodide – Wikipedia,
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Reference of 13194-69-9, 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. 13194-69-9, name is 2-Iodo-5-methylaniline, This compound has unique chemical properties. The synthetic route is as follows.

General procedure: The corresponding pyrazinoic acid (5.0 mmol) was dispersed in dry toluene (20 mL) and mixed with 1.5eq. of thionyl chloride (0.55 mL, 7.5 mmol). The reaction mixture was heated to reflux for approximately 1 h. Next, the excess of thionyl chloride was removed by repeated evaporation with dry toluene under vacuum.The crude acyl chloride was dissolved in dry acetone(20 mL) and added drop-wise to a stirred solution of the corresponding aniline (5.0 mmol) with triethylamine(5.0 mmol) in dry acetone (30 mL). The reaction mixture was stirred at ambient temperature for up to 6 h. The completion of the reaction was monitored by TLC (eluent: hexane/ethyl acetate; r =2 : 1). The crude product adsorbed on silica gel by solvent evaporation was purified by flash chromatography(hexane/ethyl acetate gradient elution).The analytical data of the prepared compounds were fully consistent with the proposed structures and are available in the Supplementary Data.

The chemical industry reduces the impact on the environment during synthesis 2-Iodo-5-methylaniline. I believe this compound will play a more active role in future production and life.

Reference:
Article; Zitko, Jan; Barbora, Servusova-Vanaskova; Paterova, Pavla; Navratilova, Lucie; Trejtnar, Frantisek; Kunes, Jiri; Dolezal, Martin; Chemical Papers; vol. 70; 5; (2016); p. 649 – 657;,
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Application of 54413-93-3, A common heterocyclic compound, 54413-93-3, name is 2-Iodo-5-methoxybenzoic acid, molecular formula is C8H7IO3, 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.

2-lodo-5-methoxy benzoic acid (15.0 g; 53.9 mmol) is dissolved in anhydrous DMF (45 ml)followed by the addition of 1H-1,2,3-triazole (7.452 g; 108 mmol) and cesium carbonate (35.155 g; 108 mmol). By the addition of cesium carbonate the temperature of the reaction mixture increases to 4000 and gas evolved from the reaction mixture. Copper(l)iodide (514 mg; 2.7 mmol) is added. This triggers a strongly exothermic reaction and the temperature of the reaction mixture reaches 70°C within a few seconds. Stirring is continued for 30 minutes.Then the DMF is evaporated under reduced pressure followed by the addition of water (170 ml) and EtOAc (90 ml). The mixture is vigorously stirred and by the addition of citric acid monohydrate the pH is adjusted to 3-4. The precipitate is filtered off and washed with water and EtOAc and discarded. The filtrate is poured into a separation funnel and the phases are separated. The water phase is extracted again with EtOAc. The combined organic layers aredried over Mg504, filtered and the solvent is evaporated to give 7.1 g of 5-methoxy-2-(2H-1,2,3-triazol-2-yl)benzoic acid as a white powder of 94percent purity (6 percent impurity is the regioisomerically Ni-linked triazolo-derivative); tR [mm] = 0.60; [M+H] = 220.21

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; ACTELION PHARMACEUTICALS LTD; BOSS, Christoph; BROTSCHI, Christine; GUDE, Markus; HEIDMANN, Bibia; SIFFERLEN, Thierry; VON RAUMER, Markus; WILLIAMS, Jodi, T.; WO2015/83070; (2015); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Synthetic Route of 82998-57-0, 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. 82998-57-0, name is 3-Iodo-4-methylbenzoic acid belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Compound 5.3. Methyl 3-iodo-4-methylbenzoate. To a solution of 3-iodo-4- methylbenzoic acid (28.0 g, 0.107 mol) in MeOH (300 mL) at 0 C was carefully added concentrated H2SO4 (30 mL). The mixture was heated at 60 C overnight, then cooled and the solvent removed under reduced pressure. The residue was carefully poured onto ice- water (200 mL) and the mixture was extracted with EtOAc (500 mL). The organics was washed with water (100 mL), saturated NaHC03 (100 mL), brine (100 mL), dried (MgS04), filtered, and concentrated to yield the title compound as a brown oi 1 (29.0 g, 98%). ‘H NMR (400 MHz, CDCI3) delta 8.47 (d, J = 1 .7 Hz, 1 H), 7.90 (dd, J = 7.9 Hz, 1.7 Hz, 1 H), 7.29 (d, J= 7.9 Hz , 1 H), 3.90 (s, 2H), 2.48 (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-Iodo-4-methylbenzoic acid, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; 3-V BIOSCIENCES, INC.; OSLOB, Johan D.; MCDOWELL, Robert S.; JOHNSON, Russell; YANG, Hanbiao; EVANCHIK, Marc; ZAHARIA, Cristiana A.; CAI, Haiying; HU, Lily W.; WO2014/8197; (2014); 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. 20691-72-9, name is 4-Iodo-2-nitroaniline, A new synthetic method of this compound is introduced below., Product Details of 20691-72-9

To a stirred solution of SnC¾ (78.0 g, 346 mmol) in concentrated HC1 (150 mL) was added 2 (25.4 g, 92.0 mmol) in three portions over 30 min at rt. The reaction mixture was heated at 70 C for 1 h and then stirred at 0 C overnight. The mixture was treated with ¾0 (150 mL) and stirred for 2 h. The precipitate was collected by filtration and dried under vacuum to afford 3 (17 g, 81% yield) as a grey solid. LC-MS (ESI) m/z 235.0 (M + H)+.

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; PRESIDIO PHARMACEUTICALS, INC.; LI, Leping; ZHONG, Min; WO2011/150243; (2011); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Adding a certain compound to certain chemical reactions, such as: 146137-72-6, name is 2-Fluoro-6-iodobenzaldehyde, 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 146137-72-6, category: iodides-buliding-blocks

General procedure: Acetyl phenyl boronic acid derivatives (3.78 g, 20.77 mmol) were reacted with halogen containing aldehyde partners (4 g, 16 mmol) or alternatively, aldehyde phenyl boronic acid starting materials (3.9 g, 21.13 mmol) were reacted with halogen substituted acetophenones (4.0 g, 16.25 mmol) for the Suzuki coupling reaction. Thus, aryl halide and polymer bound Pd (PPh3)4 (0.25 g, 1.35 mol%) were added to a dioxane-ethanol (30 mL, 4:1) mixture. This was followed by the addition of triethylamine (1.17 mL, 32 mmol) and the boronic acid derivative. The resultant solution was degassed several times with argon and stirred in ice or refluxed for 6-48 h depending upon the starting materials used. After the reaction, the mixture was filtered through celite and evaporated to dryness. The crude material was purified by column chromatography (10-20% ethyl acetate/ hexane) to obtain pure intermediates 5a-5h.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-Fluoro-6-iodobenzaldehyde, and friends who are interested can also refer to it.

Reference:
Article; Sharma, Horrick; Sanchez, Tino W.; Neamati, Nouri; Detorio, Mervi; Schinazi, Raymond F.; Cheng, Xiaolin; Buolamwini, John K.; Bioorganic and Medicinal Chemistry Letters; vol. 23; 22; (2013); p. 6146 – 6151;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Synthetic Route of 4387-36-4, The chemical industry reduces the impact on the environment during synthesis 4387-36-4, name is 2-Iodobenzonitrile, I believe this compound will play a more active role in future production and life.

2-{[(4alphaS)-l-(4-Fluorophenyl)-5-hydroxy-4alpha-methyl-l,4,4alpha,5,6,7-hexahydrocyclopenta[fJindazol-5- yl]ethynyl}benzonitrile (20-1). Disopropylamine (0.052 mL, 0.364 mmol) was added to a solution of 1-6 (112 mg, 0.363 mmol), 2-iodobenzonitrile (113 mg, 0.401 mmol), bis(triphenylphosphine)palladium30 (II) chloride (5.10 mg, 0.008 mmol), and CuI (1.38 mg, 0.008 mmol) in anhydrous THF (1.0 mL) at ambient temperature. The resulting solution was stirred at ambient temperature for 2.0 hours, then diluted with diethyl ether, filtered through a pad of celite and the solvent removed in vacuo. Purification by flash chromatography on 40 g of silica, eluting with a gradient of 0-90percent EtOAc in hexanes afforded 50 mg, 33 percent of 20-1 as a yellow foamy solid. MS (ESI): m/z = 410.2 (MH+).

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

Reference:
Patent; MERCK & CO., INC.; WO2008/51532; (2008); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Adding a certain compound to certain chemical reactions, such as: 455-13-0, name is 4-Iodobenzotrifluoride, 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 455-13-0, COA of Formula: C7H4F3I

General procedure: In a typical experiment, the isolated crystalline precatalyst 1A (or 2A, 0.005 mmol) was sequentially mixed with 3 mL of solvent (DMF or [Bmim]PF6 if required), iodobenzene (5mmol), phenylacetylene (6 mmol), and Et3N (7.5 mmol). The obtained mixture was placed in a sealed Teflon-lined stainless steel autoclave, purged with syngas (CO, 1.0 MPa) and then stirred vigorously at the required temperature for the appointed time. Upon completion of the reaction, the mixture wasc ooled to room temperature and the pressure was carefully released. The reaction mixture was extracted with diethyl ether(5 mL 3). The ether fractions were combined and then analyzedby GC to determine the conversion of PhI (1-dodecane as an internal standard) and the selectivity for the carbonylative products (normalization method). The structures of the carbonylative products were further confirmed by GC-MS.

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, 4-Iodobenzotrifluoride, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Yang, Da; Wang, Dongliang; Liu, Huan; Zhao, Xiaoli; Lu, Yong; Lai, Shijun; Liu, Ye; Cuihua Xuebao/Chinese Journal of Catalysis; vol. 37; 3; (2016); p. 405 – 411;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com