Category: 25309-64-2

Adding a certain compound to certain chemical reactions, such as: 25309-64-2, name is 1-Ethyl-4-iodobenzene, 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 25309-64-2, name: 1-Ethyl-4-iodobenzene

General procedure: A 100 mL Schlenk flask was charged with 2-bromopyridine (1.1 mmol), phenylacetylene (0.92 mmol), Cs2CO3 (1.84 mmol), 1-Pd (0.003 mmol based on Pd), DMF (6 mL) and the reaction mixture was stirred at 100 C under air atmosphere for 12 h. The mixture was cooled to the room temperature; the solid was removed by filtration and washed twice with DMF (3 mL). The filtrate was collected, dried and the residue was extracted with ethyl acetate (3 x 3 mL) followed by purification with silica gel chromatography (petroleum ether) to give a corresponding product.

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

Electric Literature of 25309-64-2, These common heterocyclic compound, 25309-64-2, name is 1-Ethyl-4-iodobenzene, 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.

General procedure: To a large microwave tube (Biotage, 10-20 mL) equipped with a stir bar was added Pd(OAc)2(23.4 mg, 0.10 mmol, 10 mol %), S-1 (400 mg, 1.04 mmol, 1 equiv), cesium pivalate (731 mg,3.12 mmol, 3 equiv), aryl iodide (2-3 equiv) and anhydrous tert-amyl alcohol (9.6 mL). The capwas crimped and the vessel was flushed with nitrogen. The microwave tube was heated withfollowing parameters: 1 min pre-stirring, followed by a ramp (normal) to 180 C and held attemperature for 30 to 50 min. Hydrazine (500 muL of 35% aqueous) was added to the reaction andallowed to stir at 60 C for 1 hr or at room temperature overnight. The tert-amyl alcohol wasremoved en vacuo and the remaining residue dissolved with EtOAc, filtered through a plug ofcelite, and concentrated en vacuo. The crude reaction was purified via flash columnchromatography with EtOAc/Heptanes.

Statistics shows that 1-Ethyl-4-iodobenzene is playing an increasingly important role. we look forward to future research findings about 25309-64-2.

Adding a certain compound to certain chemical reactions, such as: 25309-64-2, name is 1-Ethyl-4-iodobenzene, 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 25309-64-2, Recommanded Product: 1-Ethyl-4-iodobenzene

Step-1: Synthesis of tert-butyl (Z)-(2-(4-(2-(4-ethylphenyl)-l-(4-hydroxyphenyl)but-l-en-l- yl)phenoxy )ethyl)carbamate To a stirred solution of tert-butyl (E)-(2-(4-(l-(4-hydroxyphenyl)-2-(4,4,5,5-tetramethyl- l ,3,2-dioxaborolan-2-yl)but-l-en-l-yl)phenoxy)ethyl)carbamate (1.3 g, 2.55 mmol, Example- 46, Step-1) in 2-methyl THF (15 mL), l-iodo-4-ethylbenzene (0.651 mg, 2.8 mmol), 4M aqueous KOH (2 mL) and Pd(PPh3)2Cl2 (89 mg, 0.127 mmol) were added and the mixture was degassed with nitrogen for 15 min and heated at 85 C for 3 h. Upon completion, the reaction mixture was diluted with EtOAc. The organic layer was washed with water followed by brine, dried over anhydrous sodium sulphate, filtered and concentrated under reduced pressure. The crude product was purified by silica gel chromatography (2:8 EtOAc in n- hexane) to give title compound (0.5 g, 40%).

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Related Products of 25309-64-2, The chemical industry reduces the impact on the environment during synthesis 25309-64-2, name is 1-Ethyl-4-iodobenzene, I believe this compound will play a more active role in future production and life.

Anhydrous K2CO3 (2.76 g, 20 mmol), L-proline (230 mg, 2 mmol),CuI (95mg, 0.5mmol), added to a 100ml three-necked reaction flask, protected by N2,DMSO (20 ml), 1-cyclopropyl-1,3, -butanedione (0.59 ml, 5 mmol),1-ethyl-4-iodobenzene (0.724 ml, 5 mmol) was magnetically stirred, the reaction temperature was 90 C., and the reaction was performed for 18 h. TLC monitoring (PE: EA = 20: 1).Work-up: After the reaction solution was cooled to room temperature, suction filtration was performed, and the filtrate was extracted with ethyl acetate (EA) (3 ¡Á 10 ml).The organic layers were combined, washed with saturated brine (3 ¡Á 10 ml), and dried over anhydrous Na 2 SO 4.Column chromatography after concentration. The eluent is PE: EA = 70: 1, and dried under vacuum.160 mg of a yellow solid was obtained with a yield of 14%.

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

Reference:
Patent; China Pharmaceutical University; Li Yuyan; Zeng Fantian; Xu Yungen; Yang Jian; Liu Zhengshi; Li Xiaofang; Ren Longfei; (19 pag.)CN110615808; (2019); A;,
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. 25309-64-2, name is 1-Ethyl-4-iodobenzene, A new synthetic method of this compound is introduced below., SDS of cas: 25309-64-2

(39-1) Synthesis of 3-(4-ethylphenyl)-2-propyne-l-ol (compound 39-1) [Show Image] A mixture of 4-ethyliodobenzene (5.00 g), copper(I) iodide (82.1 mg), triphenylphosphine (283 mg), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (446 mg), propargyl alcohol (1.40 ml), diisopropylethylamine (15.0 ml) and tetrahydrofuran (100 ml) was stirred at room temperature for 12 hr. The reaction mixture was added to water, and the mixture was extracted with ethyl acetate, washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=98:2 – 80:20) to give the object product (2.10 g) as a brown oil. 1H-NMR(CDCl3) delta (ppm): 1.23(3H, t, J=7.6Hz), 1.65(1H, t, J=6.0Hz), 2.64(2H, q, J=7.6Hz), 4.49(2H, d, J=5.9Hz), 7.15(2H, d, J=7.6Hz), 7.36(2H, d, J=7.6Hz).

The synthetic route of 25309-64-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Mitsubishi Tanabe Pharma Corporation; EP2168944; (2010); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Application of 25309-64-2, A common heterocyclic compound, 25309-64-2, name is 1-Ethyl-4-iodobenzene, molecular formula is C8H9I, 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.

General procedure: A tube (30 mL) equipped with a magnetic stirring bar was charged with 1 (1.5 mmol), 2 (5.25 mmol), Pd(OAc)2 (10 mol%), L1 (10 mol%), and CsOAc (6.0 mmol) in DMSO (1.5 mL), then the tube was sealed, purged with O2, and the mixture was stirred at 100 C for 16 h. At the end of the reaction, the mixture was partitioned between EtOAc (30mL) and H2O (30 mL). The organic layer was separated, and the aqueous layer was extracted further with EtOAc (3 ¡Á 30 mL). The combined organic phase was dried over anhydrous Na2SO4 and concentrated under reduced pressure. Then, the crude mixture was purified by column chromatography (silica gel; n-hexane/EtOAc) to afford the desired product.

The synthetic route of 25309-64-2 has been constantly updated, and we look forward to future research findings.

Reference:
Review; Zheng, Yi-Lin; Xiao, Li; Xie, Qiong; Shao, Li-Ming; Synthesis; vol. 51; 6; (2019); p. 1455 – 1465;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

These common heterocyclic compound, 25309-64-2, name is 1-Ethyl-4-iodobenzene, 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. Quality Control of 1-Ethyl-4-iodobenzene

General procedure: A mixture of compound 2 (500 mg, 1.38 mmol), triethylamine (0.6 mL, 4.14 mmol), and 1-chloro-4-iodobenzene (1.55 mmol) in DMF (3.45 mL) was treated with palladium(II) acetate (15.5 mg, 0.04 mmol) and then heated at 80 ?C under air. After 20 h, the resulting solution was allowed to cool to room temperature, water (7 mL) was added, and the resultant mixture was extracted with ether (7 mL ¡Á 5). The organics was dried over Na2SO4 and concentrated under reduced pressure to give a crude residue, which was purified by silica gel column chromatography to afford the product.

The synthetic route of 1-Ethyl-4-iodobenzene has been constantly updated, and we look forward to future research findings.

Reference:
Article; Ding, Ya-Hui; Fan, Hong-Xia; Long, Jing; Zhang, Quan; Chen, Yue; Bioorganic and Medicinal Chemistry Letters; vol. 23; 22; (2013); p. 6087 – 6092;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Reference of 25309-64-2,Some common heterocyclic compound, 25309-64-2, name is 1-Ethyl-4-iodobenzene, molecular formula is C8H9I, 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.

Example 1Preparation of pinacol ester of 4-ethylphenylboronic acid In a 2 necks Schlenk type flask, provided with a magnetic stirring bar and topped by a coolant, 4-ethylbenzene iodide (0.232 g, 1 mmol), pinacolborane (0.128 g, 1 mmol) and triethylamine (59 mg, 1 mmol) are added to 10 ml of a distilled THF solution containing magnesium turnings (24 mg, 1 mmol). The reactive mixture is stirred for approximately 15 hours at THF reflux.At the end of the reaction, the crude reaction product is hydrolyzed by 20 ml of neutral water and extracted by diethyl ether (3¡Á40 ml). The joined organic phases are washed by 2¡Á50 ml of neutral water then dried on MgSO4. After solvent evaporation, the obtained yield is of 96% with a total conversion of the starting iodide (yield/conversion of 96%). The resulting boronic ester is analyzed by GC, NMR 1H and 13C and GC/MS.Characterizations:NMR 1H, 7.74 (2H, D, 3 Hz); 7.22 (2H, D, 3 Hz); 2.66 (2H, Q, 3 Hz); 1.34 (12H, s); 1.24 (3H, T, 3 Hz).NMR 13C, 146.68; 133.87; 127.23; 126.31; 82.58; 28.08; 23.82; 14.42.Mass spectrometry: 232-231 (M+, 6-2%); 217-216 (8-2%); 147 (19%); 146-145 (71-15%); 134 (17%); 133 (100%); 132-131 (63-21%); 118 (18%); 117 (51%); 116-115 (17-4%); 105 (18%); 104 (10%); 91 (11%); 85 (14%); 77-76 (9-2%).Ultimate Analyses:calculated %: C: 72.44%; H: 9.12%; B: 4.66%.obtained %: C: 70.22%; H: 9.25%; b: 4.39%.

The synthetic route of 25309-64-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Universite De Nice Sophia Antipolis; US2011/282090; (2011); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Electric Literature of 25309-64-2, 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. 25309-64-2, name is 1-Ethyl-4-iodobenzene belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: An appropriate phenylacetamide (0.12 mmol, 1 equiv), an appropriate iodo compound (0.48 mmol, 4 equiv), Pd(OAc)2 (2.7 mg, 10 mol%), and AgOAc (50 mg, 0.3 mmol, 2.5 equiv) in anhydrous toluene (3 mL) was heated at 110 C for 24 h under a nitrogen atmosphere. After the reaction period, the solvent was evaporated in vacuo to afford a crude reaction mixture. Purification of the crude reaction mixture by column chromatography furnished the corresponding arylated products 4a-q/7a-f (bis arylation products), 3o,r/6a,b/8e,f/9a,b (mono arylation products) (see corresponding Tables/Schemes for specific examples and reaction conditions).

The synthetic route of 1-Ethyl-4-iodobenzene has been constantly updated, and we look forward to future research findings.

Reference:
Article; Bisht, Narendra; Babu, Srinivasarao Arulananda; Tetrahedron; vol. 72; 39; (2016); p. 5886 – 5897;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Adding a certain compound to certain chemical reactions, such as: 25309-64-2, name is 1-Ethyl-4-iodobenzene, 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 25309-64-2, HPLC of Formula: C8H9I

To a three-necked flask was added K2CO3 (2.76 g, 20 mmol), CuI(190 mg,1 mmol), L-Proline (230 mg, 2 mmol) and DMSO, then 1-cyclopropylbutane-1,3-dione (1.17 mL, 10 mmol) and 1-ethyl-4-iodobenzene(0.724 mL, 5 mmol) were added to the mixture, which werestirred at 90 C for 18 h under N2 protection. The reaction mixture wasdissolved in water, and then extracted with ethyl acetate (3*15 mL),washed with saturated NaCl, and dried over Na2SO4. Flash columnchromatography (petroleum ether : ethyl acetate = 70:1) afforded 1(320 mg, 28.0%) as pale-yellow oily liquid.1H NMR (300 MHz, CDCl3) delta(ppm): delta 17.03 (s, 1H), 7.28 – 7.19 (m, 4H), 2.71 (t, J = 7.6 Hz, 2H),1.92 (s, 3H), 1.57 (tt, J = 7.9, 4.6 Hz, 1H), 1.30 (d, J = 7.6 Hz, 3H),1.16 (dt, J = 4.4, 3.2 Hz, 2H), 0.84 – 0.77 (m, 2H). HRMS (ESI)C15H18O2, [M + H]+ calculated = 231.1307; found = 231.1393.

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; Li, Xiaofang; Li, Yuyan; Peng, Kewen; Ran, Chongzhao; Xu, Yungen; Yang, Jian; Zeng, Fantian; Bioorganic and medicinal chemistry; vol. 28; 13; (2020);,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com