Category: iodides-buliding-blocks

Related Products of 811842-30-5, These common heterocyclic compound, 811842-30-5, name is 2-Bromo-1-fluoro-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.

A mixture of 2-bromo-1-fluoro-4-iodobenzene (3.01 g, 10 mmol), Example 35a (1.472 g, 10.50 mmol), and cesium carbonate (3.42 g, 10.50 mmol) in dimethylsulfoxide (20 mL) was heated at 110 C overnight. After cooling to ambient temperature, the reaction mixture was partitioned between water and ethyl acetate. The aqueous layer was extractedwith additional ethyl acetate twice. The combined organic layers were washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated. The residue was purified by column chromatography on silica gel eluting with heptanes to give the title compound (3.21 g, 76% yield) as a white solid.

The synthetic route of 811842-30-5 has been constantly updated, and we look forward to future research findings.

Some common heterocyclic compound, 672-57-1, name is 1-Chloro-2-iodo-4-(trifluoromethyl)benzene, molecular formula is C7H3ClF3I, 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. category: iodides-buliding-blocks

Methyl-4-iodosalycilate 1 or 4-Chloro-3-iodobenzotrifluoride 2 (1.00 mmol) and 5-formyl-2-furan boronic acid 3 were dissolved in 10 mL of DMF and 15 mL of EtOH. The reaction mixture was stirred for 10 min under N2, then Pd(PPh3)2Cl2 (0.10 mmol) was added and finally Na2CO3 2M (6.00 mmol). The reaction mixture (light-orange) was stirred under N2 at room temperature. After 1h the reaction went to completion and was quenched with H2O and 2N HCl; then EtOAc was added and the mixture was stirred until the two layers became clear. The aqueous layer was extracted three times with EtOAc, then the organic phase was washed several times with H2O and brine, dried over Na2SO4, filtered and evaporated under reduced pressure. 5-(2-chloro-5-(trifluoromethyl)phenyl)furan-2-carbaldehyde (4). The crude product was purified by flash chromatography using PE/EtOAc = 4:1 as eluent to yield the wished product 4 as a brown solid (yield: 20%); mp = 157 C (decomposition); 1H NMR (400 MHz, CDCl3) delta 9.73 (s, 1H), 8.23 (s, 1H), 7.76-7.45 (m, 2H), 7.42-7.28 (m, 2H)ppm. MS (ESI): m/z 273.0 [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 672-57-1, its application will become more common.

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. 25245-27-6, name is 1-Iodo-3,5-dimethoxybenzene, A new synthetic method of this compound is introduced below., category: iodides-buliding-blocks

To a mixture of 600 mg (4.0 mmol) of 3-methoxyphenylboronic acid, 792 mg (3.0 mmol) of 3,5-dimethoxyiodobenzene, 34 mg (5 mol %) palladium(II)acetate, 182 mg (20 mol %) of tri-o-tolylphosphine, and 3.6 g (24 mmol) of cesium fluoride was added 10 mL of anhydrous dioxane. The reaction was stirred at reflux under N 2 for 50 min, then poured into 30 mL of water and extracted with diethyl ether (3 10 mL). The combined ether layers were back extracted with saturated aqueous NaHCO 3 solution (1 10 mL), then brine (1 10 mL), dried over MgSO 4, filtered, and concentrated to an oil. This was purified via silica gel chromatography, eluting with 10%, ethyl acetate:hexanes to provide the titled compound (650 mg, 89%).

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

Electric Literature of 2996-30-7, These common heterocyclic compound, 2996-30-7, name is 3-Fluoro-4-iodonitrobenzene, 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.

A solution of 2-fluoro-1-iodo-4-nitrobenzene (1.96 g, 7.34 mmol), bis(pinacolato)diboron (1.86 g, 7.34 mmol), dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloromethane adduct (0.599 g, 0.734 mmol), and potassium acetate (2.38 g, 24.2 mmol) in DMSO (14.7 mL) in a seal-able tube was degassed with nitrogen for 15 min, sealed, and stirred at 100 C. for 2.5 h. The reaction mixture was cooled to room temperature, diluted with water and ethyl acetate, and filtered over Celite. The aqueous layer was separated and re-extracted with ethyl acetate. The combined organic layers were washed with brine, dried over magnesium sulfate, filtered, and concentrated to a brown oil. Purification by flash column chromatography using ethyl acetate in hexanes (0%-20%) gave the desired product (1.60 g, 81.6%).

The synthetic route of 2996-30-7 has been constantly updated, and we look forward to future research findings.

Adding a certain compound to certain chemical reactions, such as: 289039-83-4, name is Methyl 2-amino-5-bromo-3-iodobenzoate, 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 289039-83-4, COA of Formula: C8H7BrINO2

[0323] Pent-4-yn-l-ol (35.4 mg, 0.42 mmol), methyl 2-amino-5-bromo-3-iodobenzoate (100 mg, 0.28 mmol) ,PdCl2(PPh3)2 (45.9 mg, 0.06 mmol), DIEA (0.098 mL, 0.56 mmol)and copper(I) iodide (10.70 mg, 0.06 mmol) were suspended in THF (2 mL) under nitrogen. The reaction was stirred at rt for 2 hours. The solvent was removed. The crude product was purified by flash silica chromatography, elution gradient 0 to 80% EtOAc in petroleum ether. Pure fractions were evaporated to dryness to afford methyl 2-amino-5-bromo-3-(5-hydroxypent-l-yn-l-yl)benzoate (0954) (80 mg, 91 %) as a brown solid (80 mg, 91%). XH NMR (300 MHz,CDCl3-d6) delta ppm 1.67 – 1.76 (2H,m), 2.50 – 2.57 (2H, m), 3.50 – 3.82 (2H, m), 3.82 (3H, s), 4.58 (1H, tr), 6.76 (2H, brs), 7.52 (1H, d), 7.79(1H, d). LC-MS (Method A): m/z (ES+), [M+H]+ = 312.2; acid, HPLC tR = 1.54 mm.

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, Methyl 2-amino-5-bromo-3-iodobenzoate, other downstream synthetic routes, hurry up and to see.

Electric Literature of 76801-93-9, A common heterocyclic compound, 76801-93-9, name is 5-Amino-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide, molecular formula is C14H18I3N3O6, 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.

Compound B (5356 kg) was suspended in a mixture of acetic anhydride and acetic acid (7760 L, 1.45 L/kg Compound B, 87 v/v % acetic anhydride and 13 v/v % acetic acid) at ambient temperature. This mixture was prepared by mixing acetic anhydride (6086 kg) and regenerated acetic anhydride (2295 kg), the latter containing 48 v/v % acetic anhydride and 52 v/v % acetic acid obtained from a previous batch. The mixture was heated to 55C. Then, p-toluene sulfonic acid (25 kg) was added and the reaction mixture was further heated to 124C over about 90 minutes. All solids were dissolved in the reaction, and 100 % of Compound B was acetylated. The remaining acetic anhydride/acetic acid (5580 L) was distilled off under reduced pressure resulting in a very viscous reaction mixture. Thirty-nine percent of the distillate could be re-used as reagent in a later batch without a discrete purification step.

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.

Electric Literature of 31599-61-8, 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. 31599-61-8, name is 4-Iodo-1,2-dimethylbenzene belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: Pd cNPs/CFe3O4(20 mg, 0.73 mol%), aryl halide (0.5 mmol),phenylboronic acid (0.6 mmol), K2CO3(1.5 mmol), and EtOH (3 mL)were taken in a schlenk tube with a teflon stopcock, sealed andheated at 70C for a given time with constant stirring. For chloroderivatives, the reaction was performed using TBAB as additive(0.5 mmol), DMF (3 mL), at 110C and catalyst 40 mg (1.5 mol%).After the completion of reaction, the catalyst was separated by anexternal magnet and reaction mixture was washed with water toremove excess of boronic acids and further the mixture was sepa-rated by ethyl acetate. The solvent was evaporated and the residuewasresiduewas subjected to GC analysis (retention time of halobenzene wasused as the internal standard) followed by column chromatographyfor further purification. The purified compounds were character-ized by1H and13C NMR spectroscopy using CDCl3as solvent andTMS as internal standard. The spectral details and spectra are givenin supporting information section (Figs. S5-S24).

The synthetic route of 4-Iodo-1,2-dimethylbenzene has been constantly updated, and we look forward to future research findings.

Related Products of 3032-81-3,Some common heterocyclic compound, 3032-81-3, name is 1,3-Dichloro-5-iodobenzene, molecular formula is C6H3Cl2I, 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.

2,6-diamino-9H-purine-8- thiol (3.6 mmol), neocuproine hydrate (0.36 mmol), Cul (0.36 mmol), NaO-?-Bu (7.2 mmol), 1,3- dichloro-5-iodobenzene (10.8 mmol), and anhydrous DMF (24 mL) were taken in a round bottom flask flushed with nitrogen. The flask was sealed with Teflon tape, heated at 1 10 °C, and magnetically stirred for 20 h under nitrogen. Solvent was removed under reduced pressure and the resulting residue was chromatographed (CH2Cl2:MeOH:AcOH, 20: 1 :0.5). Obtained as a light yellow solid in 65 percent yield. MS (ESI): m/z 326.9 [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 1,3-Dichloro-5-iodobenzene, its application will become more common.

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.

101335-11-9, name is 2-Chloro-4-fluoro-1-iodobenzene, 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. Formula: C6H3ClFI

7,7-Dimethyl-2-(pyridin-2-yl)-4,5,6,7-tetrahydrooxazolo[4,5-c]pyridine (460 mg, 2.0 m mol), Pd2(dba)3 (92 mg, 0.1 mmol), X-phos (95 mg, 0.2 mmol), 2-chloro-4- fluoro-1-iodobenzene (768 mg, 3.0 mmol), and Na-OtBu (576 mg, 6.0 mmol) were combined in toluene (15 mL) and heated at 1500C by microwave for 3 h. The reaction was evaporated to dryness, diluted with dichloromethane and extracted with water. The combined organic layer was dried using sodium sulfate, filtered, evaporated, and then purified by prep-TLC to obtain the title compound as a yellow solid. (6 mg, 0.87 %). 1H NMR (400 MHz, CDCl3): delta 8.74-8.76 (m, IH), 8.08-8.11 (m, IH), 7.78-7.72 (m, IH), 7.32-7.36 (m, IH), 7.15-7.20 (m, 2H), 6.96-7.01 (m, IH), 4.06 (s, 2H), 3.12 (s, 2H), 1.46(s, 6H); LC/MS: m/e = 358 (M+H)+.

The synthetic route of 101335-11-9 has been constantly updated, and we look forward to future research findings.