Iodides-buliding-blocks

Related Products of 83863-33-6,Some common heterocyclic compound, 83863-33-6, name is 5-Iodo-2-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.

solution of 5-iodo-2-methyl-phenylamine (20.4 g, 87.6 mmol) in 200 mL of dry CH2Cl2 was cooled to 0 C and acetic anhydride (16.5 mL, 175 mmol) was added dropwise. The mixture was heated to 50 C for 2 h and then cooled to 22 C. The resulting white precipitate was filtered to give c (18.4 g, 76%): MS m/z = 276 (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 5-Iodo-2-methylaniline, its application will become more common.

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. 3268-21-1, name is 1,4-Diiodo-2,3,5,6-tetramethylbenzene, This compound has unique chemical properties. The synthetic route is as follows., Application In Synthesis of 1,4-Diiodo-2,3,5,6-tetramethylbenzene

1,4-Diiodo-2,3,5,6-tetramethylbenzene (1.16 g, 3 mmol),5-(tributyltin)-2,2′-bithiophene (5.6 g, 12 mmol) obtained in Example 1,Pd(PPh3)4 (24.3 mg, 0.021 mmol) was added sequentially under a nitrogen atmosphere.Add 25 ml of DMF (N,N-dimethylformamide),Rapidly warmed to 130 C, the system refluxed for 16 h,The reaction was shut down, cooled to room temperature, extracted with deionized water and dichloromethane respectively. The obtained organic phase was dried over anhydrous MgSO 4 and then purified by column chromatography. The stationary phase was 300 mesh silica gel and the mobile phase was dichloromethane. / petroleum ether (1:5), collecting the eluent containing the target product to evaporate the solvent,Obtaining 1.04 g of a yellow solid benzene-methyl-dithiophene derivative in a yield of 90%

According to the analysis of related databases, 3268-21-1, the application of this compound in the production field has become more and more popular.

Some common heterocyclic compound, 328-73-4, name is 1-Iodo-3,5-bis(trifluoromethyl)benzene, molecular formula is C8H3F6I, 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. HPLC of Formula: C8H3F6I

General procedure: Arene (0.10 mmol, 1.0 equiv), Pd(OAc)2 (2.2 mg, 10 mumol,10 molpercent), ligand (15 molpercent or 20 molpercent), hydrogen phosphate (15 molpercent for benzylamine substrate), aryl iodide (0.3 mmol, 3.0 equiv.) and silver acetate (50 mg, 0.30 mmol, 3.0 equiv.) were added into a 2-dram reaction vial. Solvent and (+)-NBE-CO2Me (20 molpercent or 50 molpercent) were added to the mixture. The vial was flushed with N2 and capped. The reaction mixture was then stirred at the selected temperature for 12?24 h. After cooling to room temperature, the mixture was filtered through Celite and eluted with ethyl acetate. The filtrate was evaporated under reduced pressure. Purification by preparative thin-layer chromatography afforded the desired product.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 328-73-4, its application will become more common.

Application of 624-75-9, 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. 624-75-9 name is 2-Iodoacetonitrile, 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.

First, a stirrer was placed in a 35 mL sealed tube, and 35 muL of styrene (0.3 mmol), 1.0 ml of acetonitrile, and 44 muL of iodoacetonitrile (0.60 mmol) were added thereto, and 5·4 mg of Phen was added to the mixed solution. (0·03mmol), 5.7mgCul (0.03mmol) and 91yL DBU (0.60mmol), tightly seal the nozzle with a cock, heat to 110 C, stir for 1.5 hours, after the reaction is finished, the system is cooled to room temperature, into the reaction system 2 ml of distilled water was added, and the mixture was extracted with ethyl acetate. The organic phases were combined, and the solvent of the organic phase was evaporated under reduced pressure.36.5 mg of a colorless liquid product 3a was obtained by silica gel column chromatography, yield 85%.

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

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 628-77-3 as follows. Formula: C5H10I2

A solution of tert-butyl (11S,11aS)-8-hydroxy-7-methoxy-2-methylene-5-oxo-11-((tetrahydro-2H-pyran-2-yl)oxy)-2,3,11,11a-tetrahydro-1H-benzo[e]pyrrolo[1,2-a][1,4]diazepine-10(5H)-carboxylate 46 (200 mg, 0.43 mmol) in DMF (5.0 mL) was added K2CO3 (60 mg, 0.43 mmol) and 1,5-diiodopentane (703 mg, 2.17 mmol). The reaction mixture was stirred at 90 C. for 12 h. The reaction mixture was concentrated and purified by silica chromatography (0-50% EtOAc in petroleum ether) to give tert-butyl (11S,11aS)-8-((5-iodopentyl)oxy)-7-methoxy-2-methylene-5-oxo-11-((tetrahydro-2H-pyran-2-yl)oxy)-2,3,11,11a-tetrahydro-1H-benzo[e]pyrrolo[1,2-a][1,4]diazepine-10(5H)-carboxylate 47 (129 mg, 0.191 mmol, 43.9% yield) as a yellow oil. LCMS (5-95AB/1.5 min): RT=0.907 min, [M+H]+ 657.1

According to the analysis of related databases, 628-77-3, the application of this compound in the production field has become more and more popular.

Related Products of 755027-18-0, 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. 755027-18-0 name is 1-Bromo-4-iodo-2-methoxybenzene, 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 a degassed solution of 1-bromo-4-iodo-2-methoxybenzene (2.2 g, 7.03 mmol), (4-methoxy-2-nitrophenyl)boronic acid (2.1 g, 10.55 mmol) in DME (80 mL) was added Pd(Ph3P)4 (812 mg, 0.7 mmol) and CsF (2.4 g, 15.82 mmol) under nitrogen. The reaction was then heated to 70 C for 18 h. The reaction was then extracted with EtOAc and water. The organic layer was washed with brine, dried over Na2SO4, and concentrated in vacuo. The residue was purified silica (gradient elution, 3-40% EtOAc/hexanes) to give the title compound (2.7 g, 99%).

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

Adding a certain compound to certain chemical reactions, such as: 645-00-1, name is 1-Iodo-3-nitrobenzene, 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 645-00-1, Recommanded Product: 1-Iodo-3-nitrobenzene

General procedure: An aryl halide (1.0 mmol) and a terminal alkyne (1.2 mmol) were added to a mixture of PS-dtz-Pd(II) (0.001 mmol), piperidine (2.0 mmol), and water (3 ml) in a glass flask under vigorous stirring. The mixture was stirred at room temperature for 3 h under aerobic conditions. After completion of the reaction, the mixture was filtered to recover the catalyst. The polymer was washed with water and acetonitrile, vacuum dried, and stored for a new run. After GC analysis, the solvent was removed under vacuum, and the crude product was subjected to silica gel column chromatography using CHCl3-CH3OH (97:3) as eluent to afford the pure 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-Iodo-3-nitrobenzene, other downstream synthetic routes, hurry up and to see.

Application of 2265-91-0,Some common heterocyclic compound, 2265-91-0, name is 1,3-Difluoro-5-iodobenzene, molecular formula is C6H3F2I, 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.

Intermediate 4: Ethyl 1-(3,5-difluorophenyl)-5-methyl-1/-/-1 ,2,3-triazole-4-carboxylate; To a mixture of 1 ,3-difluoro-5-iodobenzene (0.2 g, 0.833 mmol) and ethyl 2- butynoate (0.097 ml, 0.833 mmol) in water/DMSO (0.22ml/2ml) at room temperature was added L-proline (0.019 g, 0.167 mmol), sodium carbonate (0.018 g, 0.167 mmol), sodium azide (0.065 g, 1.000 mmol), sodium l-ascorbate (0.017 g, 0.083 mmol) and copper(ll) sulfate pentahydrate (10.40 mg, 0.042 mmol) (in this order) and the mixture was heated at 65C overnight. Monitoring by LC/MS revealed starting material to be present and so the temperature was increased to 100 degrees and the mixture was heated overnight at lOOdegC. On cooling to room temperature, the mixture was quenched with aqueous ammonia (1 ml) and EtOAc (20ml) and water (20 ml) were added. The two phases were separated, and the aqueous phase was extracted with EtOAc (3x 30 ml). All organic phases were combined and washed with water/brine (50ml) repeatedly. The organic phase was dried over sodium sulfate, filtered and the solvent was evaporated to give a crude product that was purified by MDAP to afford the title compound (14.9%); MH+=267.9.

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

Electric Literature of 52807-27-9, 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. 52807-27-9, name is 4-Chloro-2-iodoanisole belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Under a nitrogen atmosphere, tris (dibenzylideneacetone) dipalladium (2.29 g, 2.5 mmol) , 1, V -bis (diphenylphosphi.no) ferrocene (2.11 g, 5 mmol) , sodium tert-butoxide (6.73 g, 70 mmol) and toluene (150 ml) were mixed. To this solution, 2-amino-3-bromo-5-methylpyridine (9.82 g, 52.5 mmol), 4-chloro-2-iodo-l-methoxybenzene (13.42 g, 50 mmol) and toluene (100 ml) were added. The mixture was stirred at an internal temperature of 9O0C for 2 hours. The reaction solution was cooled to room temperature, and IN hydrochloric acid (150 ml) was added thereto. The insoluble was filtered off and washed twice with toluene (50 ml) . The organic layer was separated and washed sequentially, once with 5N aqueous sodium hydroxide solution (50 ml) and twice with water (50 ml) . The organic layer was concentrated under reduced pressure, ethanol/acetone (4/1, 30 ml) was added to the concentrate, and the crystals were collected by filtration. The crystals were washed three times with ethanol/acetone (4/1, 15 ml) , and dried under reduced pressure at 50C, to yield the title compound (12.88 g) (yield 78.6%).1H-NMR (CDCl3, TMS, 300 MHz) delta (ppm) : 2.23 (3H, s) , 3.92 (3H, s), 6.77 (IH, d, J = 8.6 Hz), 6.87 (IH, dd, J = 2.5 Hz, 8.6 Hz), 7.59 (IH, d, J = 1.5 Hz), 7.75 (IH, brs) , 8.05 (IH, d, J = 1.0 Hz), 8.69 (IH, d, J = 2.5 Hz). 13C-NMR (CDCl3, TMS, 75 MHz) delta (ppm): 17.1, 56.2, 106.8, 110.4, 117.1, 120.1, 125.4, 126.0, 131.2, 140.9, 146.0, 146.3, 149.3.Mass analysis (Ci3Hi2N2OBrCl) Theoretical value: 326 Measured value: 327 [M+H]+Elemental analysis (Ci3Hi2N2OBrCl)Theoretical value: C, 47.66; H, 3.69; N, 8.55; Br, 24.39; Cl , 10 . 82Measured value: C, 47.94; H, 3.62; N, 8.68; Br, 24.36; Cl, 10.86Melting point: 140.2C

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-Chloro-2-iodoanisole, other downstream synthetic routes, hurry up and to see.

Electric Literature of 25245-35-6, A common heterocyclic compound, 25245-35-6, name is 2-Iodo-1,4-dimethoxybenzene, molecular formula is C8H9IO2, 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 mixture of the styrene (3 mmol), the halogenated benzene (3 mmol), triethanolamine (3 mmol) and Pd(II) acetate (0.03 g) was stirred under argon at 100 C for 24 h. The reaction was cooled to 25 C, quenched by the addition of dil. aq. hydrochloric acid (2 N, 10 ml), and extracted with ether (3 × 100 ml). The organic phases were dried (Na2SO4), the solvents evaporated, and the crude product subjected to chromatography (silica gel, hexane/ethyl acetate mixtures).

The synthetic route of 25245-35-6 has been constantly updated, and we look forward to future research findings.