Tag: M.W=200-300

Electric Literature of 71838-16-9, These common heterocyclic compound, 71838-16-9, name is 2-Bromo-1-iodo-4-methylbenzene, 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.

To activated Zn (1.2g, 19mmol) in DMA (7mL) was added bromodifluoromethyldiethyl- phosphonate (5.0g, 19mmol) in DMA (7mL). The resulting mixture was stirred at 45C for 3 hours, after which copper(I) bromide (2.7g, 19mmol) was added and stirring was continued for 0.5 hours at room temperature. 3-Bromo-4-iodotoluene (2.8g, 9.4mmol) was then added and the mixture was sonicated at room temperature for 12 hours. The reaction mixture was partitioned between ether and H2O, filtered through Celite, and the organic layer was dried over MgSO4 and concentrated in vacuo to yield 2.1 g (63%) of 27 as a clear, colorless oil;1H NMR (300 MHz, CDCl3) delta 7.51 (d, J = 6 Hz, 1 H), 7.27 (s, 1 H), 7.20 (d, J= 7.5 Hz, 1 H), 4.27 (m, 4 H), 1.36 (t, J = 8.1 Hz)

Statistics shows that 2-Bromo-1-iodo-4-methylbenzene is playing an increasingly important role. we look forward to future research findings about 71838-16-9.

Reference:
Patent; CENGENT THERAPEUTICS, INC.; WO2006/9876; (2006); A2;,
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Some common heterocyclic compound, 111771-08-5, name is 2-Fluoro-6-iodobenzoic acid, molecular formula is C7H4FIO2, 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: 111771-08-5

To a round-bottomed flask equipped with an overhead magnetic stirrer, reflux condenser, and nitrogen inlet were added 2-Fluoro-6-iodobenzoic acid (2.5 g, 9.4 mmol), Cul (0.09 g, 0.47 mmol), and CS2CO3 (6.1 g, 18.8 mmol). To these solids were added dioxane (12.5 ml_), water (0.05 ml_), 1 H-1 ,2,3-triazole (1.09 ml_, 18.8 mmol), and finally (1 R,2R)-N1 ,N2-dimethylcyclohexane-1 ,2-diamine (0.3 ml_, 1.88 mmol). The mixture was then warmed to 100 C ON. The day after the mixture was cooled and MTBE and water were added. After vigorous mixing, the layers were separated and the bottom aqueous layer was acidified to pH 2 with 6N HCI. The aqueous phase was then extracted with DCM (3x). The combined organic layers were dried, and concentrated The residue was purified by FC on S1O2 column (eluent : from DCM to DCM:MeOH 90:10) to afford 2-fluoro-6-(2H-1 ,2,3-triazol-2-yl)benzoic acid (p186, 1.1 g, y= 56%). MS (m/z): 208.0 [M+H]+

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 111771-08-5, its application will become more common.

Reference:
Patent; CHRONOS THERAPEUTICS LIMITED; MICHELI, Fabrizio; BERTANI, Barbara; GIBSON, Karl Richard; DI FABIO, Romano; RAVEGLIA, Luca; ZANALETTI, Riccardo; CREMONESI, Susanna; POZZAN, Alfonso; SEMERARO, Teresa; TARSI, Luca; LUKER, Timothy Jon; (275 pag.)WO2019/43407; (2019); A1;,
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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 216393-67-8 as follows. SDS of cas: 216393-67-8

4-Chloro-2-fluoro-6-iodoaniline (2.5 g, 9.2 mmol), pyruvic acid (2.5 g, 27 mmol) and DABCO (3.1 g, 27 mmol) were dissolved in DMF (15 mL). The solution was degassed and palladium acetate (500 mg) was added. The reaction mixture was heated at 100 C for 3 h, cooled to RT and then filtered. The filtrate was diluted with EA (90 mL), washed with 2M HC1 (20 mL x 3), water (40 mL) and brine (40 mL). The organic phase was dried over MgS04, filtered and evaporated to give 5-chloro-7-fluoro-lH-indole-2-carboxylic acid (1.9 g, 97% yield) as a dark solid. 1H NMR (400 MHz, DMSO^): d 13.06 (br s, 1H), 12.50 (s, 1H), 7.59 (s, 1H), 7.21 (d, = 1.2 Hz, 1H), 7.16-7.15 (t, 7= 3.2 Hz, 1H).

According to the analysis of related databases, 216393-67-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; PADFORWARD LLC; KANOUNI, Toufike; (109 pag.)WO2019/152883; (2019); A1;,
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Related Products of 5876-51-7,Some common heterocyclic compound, 5876-51-7, name is 5-Iodobenzo[d][1,3]dioxole, molecular formula is C7H5IO2, 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 mixture of Pd(PPh3)2Cl2(0.086g, 0.12 mmol), CuI (0.047 g, 0.24 mmol), Et3N (0.51 mL, 3.66 mmol) in MeCN (20 mL) were added substituted thienylacetylene (2.44 mmol) and3,4-methylenedioxy-iodobenzene(2.21 mmol). The reaction mixture was recharged with Argon and stirred at 80C for 3 h in a sealed tube. The mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous NaCl and concentrated in vacuo. The residue was purified by column chromatography on silica gel (petroleum ether/ethyl acetate, 10:1) to afford pure product.5-(Thiophen-3-ylethynyl)benzo[d][1,3]dioxole (72).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 5-Iodobenzo[d][1,3]dioxole, its application will become more common.

Reference:
Article; Liang, Jian-Hua; Yang, Liang; Wu, Si; Liu, Si-Si; Cushman, Mark; Tian, Jing; Li, Nuo-Min; Yang, Qing-Hu; Zhang, He-Ao; Qiu, Yun-Jie; Xiang, Lin; Ma, Cong-Xuan; Li, Xue-Meng; Qing, Hong; European Journal of Medicinal Chemistry; vol. 136; (2017); p. 382 – 392;,
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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. 444-29-1, name is 1-Iodo-2-(trifluoromethyl)benzene, A new synthetic method of this compound is introduced below., Product Details of 444-29-1

General procedure: A dried round-bottomed flask was charged with aryl iodide (0.30 mmol, 1.0 equiv), ortho-bromobenzoyl chlorides (0.36 mmol, 1.2 equiv), norbornadiene (0.60 mmol, 2.0 equiv), Pd(OAc)2 (5 mol %), triphenylphosphine (12.5 mol %), Cs2CO3 (0.675 mmol, 2.25 equiv), and DMF (4 mL). The mixture was stirred at 105 C under nitrogen atmosphere for 10 h. After cooling to room temperature, the mixture was diluted with ethyl acetate (5 mL) and brine (10 mL), and extracted with ethyl acetate (3 × 10 mL). The combined organic phase was washed with brine, dried with anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The crude product was purified by column chromatography on silica gel (petroleum ether/ethyl acetate as eluent) to afford the target compounds

The synthetic route of 444-29-1 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Zhong, Yue; Wu, Wen-Yu; Yu, Shao-Peng; Fan, Tian-Yuan; Yu, Hai-Tao; Li, Nian-Guang; Shi, Zhi-Hao; Tang, Yu-Ping; Duan, Jin-Ao; Beilstein Journal of Organic Chemistry; vol. 15; (2019); p. 291 – 298;,
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Application of 573764-31-5,Some common heterocyclic compound, 573764-31-5, name is 4-Chloro-3-iodoaniline, molecular formula is C6H5ClIN, 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.

In a microwave reaction vial with a magnetic stir bar, 4-chloro-3-iodoaniline (3) (1 eq, 0.4 mmol) was added, followed by 0.2 M HCl in D2O (1 eq, 2 mL). The vial was capped and sealed and heated in the microwave synthesis apparatus for 30 mins at a temperature of 180°C . The reaction mixture was cooled down and was quenched by additon of 2 mL 3 M NaOH, 1 mL brine and 2 mL Et2O, separating the organic phase and washing with brine.

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-3-iodoaniline, its application will become more common.

Reference:
Article; Wang, Fangying; Jiang, Hongxia; Deng, Yufang; Yu, Jiang; Zhan, Miao; Zhao, Lifeng; Chen, Yuanwei; Bioorganic and Medicinal Chemistry Letters; vol. 28; 14; (2018); p. 2399 – 2402;,
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Some common heterocyclic compound, 56096-89-0, name is 4-Fluoro-2-iodobenzoic acid, molecular formula is C7H4FIO2, 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. Product Details of 56096-89-0

A mixture of 2-iodo-4-fluorobenzoic acid (194 mg, 0.73 mmol) and phosphorus pentachloride (152 mg, 0.73 mmol) in diethyl ether (5 mL) was stirred at room temperature for 2 h. The solvent was removed under reduced pressure to yield the 2-iodo-4-fluorobenzoyl chloride. [00465] A solution of 2-iodo-4-fluorobenzoyl chloride in tetrahydrofuran (5 mL) was added to a solution of 4-[3-aminobenzoyl]-1-methylpiperidine ketone (145 mg, 0.66 mmol) and triethylamine (0.5 mL, 3.6 mmol) in tetrahydrofuran (5 ml). The reaction mixture was stirred 16 h at room temperature. The reaction mixture was diluted with ethyl acetate and water then extracted with ethyl acetate. The ethyl acetate extracts were washed with 0.2N sodium hydroxide solution, water, brine, then dried over sodium sulfate. The solvent was removed under reduced pressure. Prepurified by eluting through a small amount of silica gel (5% 2M ammonia in methanol/methylene chloride) then purified by radial chromatography (silica gel, 2000 micron rotor, 2.5% 2M ammonia in methanol/methylene chloride) gave 266 mg of a white foam. Crystallized as the hydrochloric acid salt from ethyl acetate/ethanol then recrystallized from ethyl acetate/methanol to provide 120 mg (48%) of an off white powder. mp>250 C. MS(m/e) 467(M+1), 465(M-1). [00466] Analysis for C20H21ClFIN2O2: [00467] Calcd: C, 47.78; H, 4.21; N, 5.57; Found: C, 47.71; H, 4.14; N, 5.44.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 56096-89-0, its application will become more common.

Reference:
Patent; Eli Lilly and Company; US6777428; (2004); B1;,
Iodide – Wikipedia,
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Related Products of 1878-69-9, 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 1878-69-9 as follows.

Scheme 12; 156 tert-Butyl 3-(7-(4-Amino-2-fluorophenoxy)thieno[3,2-b]pyridin-2-yl)phenethyl(2- methoxyethyl)carbamate (156); Step 1 : 2-(3-Iodophenyl)-N-(2-methoxyethyl)acetamide (151); To a solution of 3 iodophenylacetic acid (1.12 g, 4.3 mmol) in dichloromethane (50 mL) was added oxalyl chloride (0.75 mL, 8.6 mmol) and DMF (0.05 mL). The mixture was stirred for 1 h at room temperature and concentrated. The residue was dissolved in dry THF (40 mL) and 2-methoxyethylamine (2.0 mL, 23 mmol) was added. The mixture was stirred for 2 h and concentrated. The residue was partitioned between water and ethyl acetate, the organic phase was collected, washed with IM HCl, water, saturated NaHCO3, brine, dried (MgSO4), filtered and concentrated to afford pure 151 (1.23 g, 89 %). 1H NMR (400 MHz, CDCl3) delta (ppm): 7.64- 7.61 (m, 2H), 7.26-7.24 (m, 1H), 7.10-7.06 (m, 1H), 5.81 (br s, 1H), 3.49 (s, 2H), 3.44-3.40 (m, 4H), 3.32 (s, 1H). MS (m/z): 320.1 (M+H).

According to the analysis of related databases, 1878-69-9, the application of this compound in the production field has become more and more popular.

Reference:
Patent; METHYLGENE INC.; WO2009/26717; (2009); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Related Products of 13194-69-9,Some common heterocyclic compound, 13194-69-9, name is 2-Iodo-5-methylaniline, molecular formula is C7H8IN, 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 mixture of o-iodoaniline (0.5 mmol, 1 equiv), arylacetic acid (0.6 mmol), elemental sulfur (1.5mmol), Cu(OAc)2·H2O (20 mmol%), and NaOH (1.0 mmol) in DMSO (3 mL) was put into a sealed pressure vessel (25 mL) containing a magnetic stirring bar. The tube was purged with nitrogen three times, and then capped and stirred in a preheated oil bath at 130 C for 24 h. The reaction mixture then cooled to room temperature and extracted with ethyl acetate (3×10 mL), the organic layer was washed with saturated NaCl (2×10 mL), dried over anhydrous Na2SO4, evaporated under vacumm and then purified by silica gel column chromatography by using petroleum ether and ethyl acetate (PE:EA=200:1) as eluent.

The synthetic route of 13194-69-9 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Wang, Xin; Li, Xiaotong; Hu, Renhe; Yang, Zhao; Gu, Ren; Ding, Sai; Li, Pengyi; Han, Shiqing; Synlett; vol. 29; 2; (2018); p. 219 – 224;,
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Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. Recommanded Product: 1-Iodo-3,5-dimethoxybenzene

In a sealed tube purged with nitrogen, 1-iodo-3,5-dimethoxybenzene (36) (0.78 g, 3.0 mmol), (1S,2R,4aS,8aS)-1-(hydroxymethyl)-2,5,5,8a-tetramethyl-decahydronaphthalen-2-ol (3) (0.65 g, 2.68 mmol), Cs2CO3 (1.3 g, 4.0 mmol), 3,4,7,8-tetramethyl-[1,10]-phenylthroline (0.12 g, 0.50 mmol), CuI (0.05 g, 0.3 mmol), diglyme (2 mL) and toluene (10 mL) were added. The reaction mixture was stirred at 120 C. for 18 h. The reaction was cooled to room temperature, diluted with EtOAc (300 mL) and washed with water (100 mL). The organic layer was dried (Na2SO4) and concentrated. Purification by column chromatography on silica gel (Hexanes/EtOAc, 2:1) gave (1S,2R,4aS,8aS)-1-(3,5-dimethoxyphenoxymethyl)-2,5,5,8a-tetramethyl-decahydronaphthalen-2-ol (37) (0.71 g, 70%) as a colourless oil.

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

Reference:
Patent; Aquinox Pharmaceuticals Inc.; US2011/136802; (2011); A1;,
Iodide – Wikipedia,
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