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 13421-13-1 as follows. Formula: C7H4ClIO2

3.35 g (153.18 mmol) of methyl 4,5-dimethyl-1H-pyrrole-3-carboxylate prepared in accordance with the literature (Synthetic uses of tosylmethyl isocyanide (TosMIC) Organic Reactions (Hoboken, N.J., United States) (2001), 57, No 418) and 4.63 g (16.4 mmol) of 4-chloro-2-iodo-benzoic acid are dissolved in 50 mL of acetonitrile. There are added thereto copper powder (45 (280 mg, 4.37 mmol) as well as caesium carbonate (14.25 g, 43.74 mmol). The reaction mixture is heated at reflux for 12 hours. The progress of the reaction is monitored by liquid chromatography (LC). The suspension is allowed to return to ambient temperature and is then filtered, washed with acetonitrile and evaporated to dryness. The residue is taken up in ethyl acetate. The solution is then washed with 1M hydrochloric acid and then with a saturated sodium chloride solution, it is dried over maganesium sulphate, filtered and then evaporated to dryness. The compound so obtained is purified over a silica gel column using dichloromethane and ethanol as solvents. (0126) Mass spectroscopy (ESI+): (0127) Empirical formula: C15H14ClNO2 (0128) monoisotopic mass=307.07 Da (0129) [M+H]+, measured: 308.12 (0130) (isotope ratios consistent with one chlorine atom)

According to the analysis of related databases, 13421-13-1, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Les Laboratoires Servier; Vernails (R&D) Limited; CASARA, Patrick; LE DIGUARHER, Thierry; HENLIN, Jean-Michel; STARCK, Jeroeme-Benoit; LE TIRAN, Arnaud; DE NANTEUIL, Guillaume; GENESTE, Olivier; DAVIDSON, James Edward Paul; MURRAY, James Brooke; CHEN, I-Jen; WALMSLEY, Claire; GRAHAM, Christopher John; RAY, Stuart; MADDOX, Daniel; BEDFORD, Simon; (72 pag.)US2016/152599; (2016); A1;,
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82998-57-0, name is 3-Iodo-4-methylbenzoic acid, 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: 82998-57-0

Oxalyl chloride (1.739 g, 1.20 ml, 13.7 mmol) was added dropwise to a solution of 3-iodo-4-methyl benzoic acid (0.717 mg, 2.74 mmol) and dichloromethane (9 ml). N,N-dimethylformamide (1 drop) was added and the colorless solution stirred at room temperature for 1 h. The solution was concentrated to afford 3-iodo-4-methyl benzoyl chloride as a light yellow solid which was used without purification. 2-(4-amino-2-(trifluoromethyl)benzyl)isoindoline-1,3-dione (Ic) (0.922 g, 2.88 mmol) was added to a solution of 3-iodo-4-methyl benzoyl chloride (0.767 g, 2.74 mmol) in dichloromethane (5 ml) and the mixture stirred at room temperature for 30 min. Triethylamine (0.360 g, 0.50 ml, 3.56 mmol) was added and the solution stirred at room temperature for 1 h. The reaction mixture was partitioned between dichloromethane and saturated aqueous sodium bicarbonate solution. The aqueous phase was separated and extracted with dichloromethane. The combined organic phases were washed with water, brine, dried over anhydrous sodium sulfate, filtered and concentrated to afford a solid (N-(4-((1,3-dioxoisoindolin-2-yl)methyl)-3-(trifluoromethyl)phenyl)-3-iodo-4-methylbenzamide (Id)).

The synthetic route of 82998-57-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Apicore, LLC; Kovi, Ravishanker; Kannapan, Jayaraman; Thakor, Sanjay F.; Patel, Rajesh A; US2014/343282; (2014); A1;,
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Application of 40400-15-5,Some common heterocyclic compound, 40400-15-5, name is 2-(2-Iodophenyl)acetonitrile, molecular formula is C8H6IN, 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 flask was equipped with a magnetic stir bar and charged with 1Hpyrrole-2-carbaldehyde (2a; 19.0 mg, 0.2 mmol, 1.0 equiv), 2-bromophenylacetonitrile(1a; 39.2 mg, 0.2 mmol, 1.0 equiv), and K3PO4(63.6 mg, 0.3 mmol, 1.5 equiv). The flask was evacuated and filledwith N2, and then anhydrous DMSO (2.0 mL) was introduced via a syringe.The flask was heated in a 130 C oil bath for 24 h, at which timeTLC analysis [petroleum ether (bp 60-90 C)-EtOAc, 10:1] indicatedcomplete consumption of 2a and 1a. The reaction mixture was cooledto r.t. and added to a sat. solution of NaCl (20 mL) and extracted withEtOAc (3 × 10 mL). The combined organic layers were dried (Na2SO4)and filtered. The filtrate was concentrated, and the residue was purified by column chromatography on SiO2 [petroleum ether (bp 60-90C)-EtOAc, 10:1 to 30:1] to give 3am; Yield: 27.9 mg (67%); tan solid; mp 191.3-192.0 C.

The synthetic route of 40400-15-5 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Jiang, Zeng-Qiang; Miao, Da-Zhuang; Tong, Yao; Pan, Qiang; Li, Xiao-Tong; Hu, Ren-He; Han, Shi-Qing; Synthesis; vol. 47; 13; (2015); p. 1913 – 1921;,
Iodide – Wikipedia,
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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. 167479-01-8, name is tert-Butyl (3-iodopropyl)carbamate belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. SDS of cas: 167479-01-8

Part C A solution of 4-amino-2-ethoxymethyl-1-isopropylamino-1H-imidazo[4,5-c]quinolin-7-ol (0.11 g, 0.35 mmol) in 10 ML of N,N-dimethylformamide was placed under an atmosphere of nitrogen and was treated with cesium carbonate (0.23 g, 0.70 mmol).After 5 min of stirring the mixture was treated with tert-butyl 3-iodopropylcarbamate (0.12 g, 0.35 mmol) and heated to 65 C. After 60 h, the reaction mixture was cooled to ambient temperature and then poured into 100 ML of ice water which resulted in a cloudy suspension.The mixture was extracted with CHCl3 (5*25 ML).The combined organic extracts were then washed with brine (50 ML), dried over Na2SO4, filtered and concentrated under reduced pressure to yield a tan oil.Chromatography (95:5 CHCl3:(80:18:2 CHCl3:MeOH:NH4OH) gradient to 1:1 gave 0.040 g of [3-(4-amino-2-ethoxymethyl-1-isopropylamino-1H-imidazo[4,5-c]quinolin-7-yloxy)propyl] tert-butyl carbamate as a light tan solid. LC/MS (APCI) m/z 473 (M+H)+.

The synthetic route of 167479-01-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; 3M Innovative Properties Company; US2004/176367; (2004); A1;,
Iodide – Wikipedia,
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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. 460-37-7, name is 1,1,1-Trifluoro-3-iodopropane, This compound has unique chemical properties. The synthetic route is as follows., Application In Synthesis of 1,1,1-Trifluoro-3-iodopropane

Example 299A 3-(2-Methoxy-2-methylpropyl)-5-methyl-2,4-dioxo-1-(3,3,3-trifluoropropyl)-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-6-carbaldehyde 498 mg (3.6 mmol) of potassium carbonate were added to a solution of 450 mg (1.44 mmol) of the compound from Ex. 288A in 15 ml of DMF, and the mixture was stirred at RT for 15 min. Then 969 mg (4.32 mmol) of 1,1,1-trifluoro-3-iodopropane were added, and the mixture was stirred at 50 C. for 18 h. The DMF was then very substantially distilled off and the remaining residue was partitioned between semisaturated sodium chloride solution (100 ml) and ethyl acetate (50 ml). The aqueous phase was extracted with ethyl acetate. The combined organic phases were dried over sodium sulphate, filtered and concentrated. The residue obtained was chromatographed using a silica gel cartridge (Biotage, 50 g of silica gel, eluent: hexane/ethyl acetate). 463 mg (79% of theory) of the title compound were obtained. 1H-NMR (400 MHz, DMSO-d6, delta/ppm): 10.11 (s, 1H), 4.17 (t, 2H), 4.00 (br. s, 2H), 3.15 (s, 3H), 2.86-2.71 (m, 5H), 1.09 (s, 6H). LC/MS (Method 3, ESIpos): Rt=1.22 min, m/z=361 [M+H-CH3OH]+.

According to the analysis of related databases, 460-37-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; BAYER PHARMA AKTIENGESELLSCHAFT; HAeRTER, Michael; KOSEMUND, Dirk; DELBECK, Martina; KALTHOF, Bernd; WASNAIRE, Pierre; SUessMEIER, Frank; LUSTIG, Klemens; (369 pag.)US2018/65981; (2018); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Electric Literature of 444-29-1,Some common heterocyclic compound, 444-29-1, name is 1-Iodo-2-(trifluoromethyl)benzene, molecular formula is C7H4F3I, 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 50 mL round-bottomed flask, equipped with a gas inlet tube, a refluxcondenser and a magnetic stirring bar was charged with MCM-41-2PPdCl2 (102 mg, 0.05 mmol Pd), aryl halide (5.0 mmol) and HCOONa(7.5 mmol). The flask was flushed with CO. DMF (5 mL) was addedby syringe and a slow stream of CO was passed into the suspension.The mixture was vigorously stirred at 110?130 °C for 2?20 h, cooledto room temperature and diluted with diethyl ether (50 mL). Thepalladium catalyst was separated from the mixture by filtration,washed with distilled water (2 × 10 mL), ethanol (2 × 10 mL) and ether(2 × 10 mL) and reused in the next run. The ethereal solution waswashed with water (3 × 20 mL), and dried over anhydrous magnesiumsulfate and concentrated under reduced pressure. The residue waspurified by flash column chromatography on silica gel (hexane?ethylacetate = 10 : 1).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1-Iodo-2-(trifluoromethyl)benzene, its application will become more common.

Reference:
Article; Jiang, Jianwen; Wang, Pingping; Cai, Mingzhong; Journal of Chemical Research; vol. 38; 4; (2014); p. 218 – 222;,
Iodide – Wikipedia,
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Some common heterocyclic compound, 202982-68-1, name is 1-Chloro-4-fluoro-2-iodobenzene, molecular formula is C6H3ClFI, 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-Chloro-4-fluoro-2-iodobenzene

To a suspension of 6-bromo- 1,2,3 ,4-tetrahydroisoquinolin- 1-one (1.0 g), 1-chloro-4-fluoro-2-iodobenzene (1.134 g), DMEDA (0.094 mL), and K3P04 (1.878 g) in toluene (10 mL) was added CuT (0.084 g) under nitrogen flow, and the mixture was stirred at 90C under nitrogen atmosphere overnight. Then, 1-chloro-4-fluoro-2-iodobenzene (0.3 g) was added thereto at room temperature, and the mixture was stirred at 90C under nitrogen atmosphere overnight. The mxiture was cooled, and then concentrated. The resulted crude product was purified by medium- pressure column chromatography (Hexane/AcOEt) to give 6-bromo-2-(2-chloro-S-fluorophenyl)- 1,2,3 ,4-tetrahydroisoquinolin- 1-one (0.75 g).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 202982-68-1, its application will become more common.

Reference:
Patent; OTSUKA PHARMACEUTICAL CO., LTD.; KAN, Keizo; TAKUWA, Masatoshi; TANAKA, Hirotaka; FUJIWARA, Hideto; YAMABE, Hokuto; MATSUDA, Satoshi; OHDACHI, Kazuhiro; HANARI, Taiki; MENJO, Yasuhiro; URUSHIMA, Tatsuya; FUJITA, Shigekazu; (183 pag.)WO2019/4421; (2019); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

111771-08-5, name is 2-Fluoro-6-iodobenzoic acid, 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. COA of Formula: C7H4FIO2

EXAMPLE 2-162 4-Chloro-5-fluoro-1-(2-pyridinyl)-1H-pyrazolo[3,4-b]quinoline Following the procedures described in Reference Example 2-5 and Example 2-1, the title compound was prepared from 2-fluoro-6-iodobenzoic acid and 1-(2-pyridinyl)-1H-pyrazol-5-ylamine (64% yield). mp: 173-176 C. (recrystallized from ethyl acetate). NMR (CDCl3) delta: 7.18-7.34 (2H, m), 7.66-7.79 (1H, m), 7.92-8.07 (2H, m), 8.62 (1H, s), 8.66-8.73 (2H, m).

The synthetic route of 111771-08-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Uchikawa, Osamu; Mitsui, Keita; Asakawa, Akiko; Morimoto, Shigeru; Yamamoto, Masataka; Kimura, Hiroyuki; Moriya, Takeo; Mizuno, Masahiro; US2003/187014; (2003); A1;,
Iodide – Wikipedia,
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Electric Literature of 20555-91-3, 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. 20555-91-3 name is 1,2-Dichloro-4-iodobenzene, 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.

Example HI; Preparation of l -(3,4-dichlorophenyl)-bicvclo[3 1 0]hexan-2-amines and 1-C3.4- dichlorophenyl)-bicvclo[3 1 0]hexan-3 -amines using Reaction Schemes 1 and 2A. Synthesis of 3-(3,4-diehlorophenyl)prop-2-vn-l-ol EPO Bis(t?phenylphosphine)palladium(II) chlonde (120 mg, 0 171 mmol) was added to a stirred solution of propargyl alcohol (5 24 g, 93 4 mmol, 1 02 eq), 1 -iodo- 3,4-dichlorobenzene (25 0 g, 91 6 mmol, 1 eq), t?ethylamine (18 5 g, 183 2 mmol, 2 eq), and copper iodide (60 mg, 0 32 mmol) in THF (50 mL) The mixture was stirred at 350C for 12 h under a nitrogen atmosphere The mixture was then filtered through a bed of celite and the filtrate was washed with ethyl acetate The filtrate was then concentrated at 350C (vac = 28 in Hg) using a rotary evaporator The residue was pu?fied using a silica gel column (4 1 heptane/ethyl acetate – ? 2 1 heptane/ethyl acetate) to give the desired product as a light yellow solid ( 17 10 g, 85 2 mmol, 93%) 1H NMR (400 MHz, CHLOROFORM-^) delta ppm 4 53 (s, 2H) 7 19 (d, I H) 7 29 (d, IH) 7 49 (s, IH)

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1,2-Dichloro-4-iodobenzene, and friends who are interested can also refer to it.

Reference:
Patent; DOV PHARMACEUTICAL, INC.; WO2008/57575; (2008); A2;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Related Products of 1094759-93-9,Some common heterocyclic compound, 1094759-93-9, name is 4-Chloro-5-fluoro-2-iodoaniline, molecular formula is C6H4ClFIN, 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 a solution of compound 12b (450 mg, 1.66 mmol) in MeOH (10 mL) and DMF (20 mL) was added Pd (OAc) 2 (38 mg, 0.17 mmol), DPPF (94 mg, 0.17 mmol) and Et 3N (504 mg, 4.98 mmol). The resulting mixture was purged and degassed with CO for 3 times, then stirred at 80C under CO (50 Psi) for 24 h. The reaction mixture was filtered and diluted with EtOAc (50 mL). The organic layer was washed with brine (50 mL), dried and concentrated under reduced pressure to give the crude residue, which was purified by column chromatography on silica gel (petroleum ether/EtOAc = 50/1 (v/v)) to give compound 12c (320 mg, 95% yield) as a white solid. LCMS: R t = 0.941 min in 5-95AB_1.5 min_220&254 chromatography (MERCK RP18 25-2mm), MS (ESI) m/z= 203.9 [M +H] +. 1H NMR (400MHz, MeOH-d 4) delta 7.83 (d, J=8.4 Hz, 1H), 6.59 (d, J=11.6 Hz, 1H), 3.85 (s, 3H).

The synthetic route of 1094759-93-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; DIZAL (JIANGSU) PHARMACEUTICAL CO., LTD; LI, Zhengtao; ZOU, Hao; ZHU, Wei; SHEN, Changmao; WANG, Rumin; LIU, Wengeng; CHEN, Xiang; TSUI, Honchung; YANG, Zhenfan; ZHANG, Xiaolin; (307 pag.)WO2019/149164; (2019); A1;,
Iodide – Wikipedia,
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