Month: April 2021

Related Products of 77317-55-6, A common heterocyclic compound, 77317-55-6, name is Methyl 2-amino-5-iodobenzoate, molecular formula is C8H8INO2, 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.

REFERENCE EXAMPLE 108 2-Amino-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolane-2-yl)benzoic acid methyl ester To a solution of methyl 5-iodoanthranilate (2.87 g, 10.0 mmol) and triethylamine (4.2 mL, 30 mmol) in 1,4-dioxane (20 mL), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane complex (82 mg, 0.10 mmol) was added and 4,4,5,5-tetramethyl-1,3,2-dioxaborolane (3.7 mL, 25 mmol) was added dropwise. The resultant mixture was stirred at 80 C for 14 hours under nitrogen atmosphere. The reaction mixture was combined with water, and extracted twice with ethyl acetate. The combined organic layer was washed with water and brine, filtered through a silica gel (eluding with ethyl acetate), and concentrated under reduced pressure. The residue was subjected to a column chromatography on a silica gel (hexane/ethyl acetate, 5:1), and recrystallized from ethyl acetate-hexane to obtain the title compound (1.45 g, yield: 52%). Melting point: 110-112 C 1H NMR (CDCl3) delta 1.33 (12H, s), 3.86 (3H, s), 5.96 (2H, br s), 6.63 (1H, d, J = 8.3 Hz), 7.67 (1H, dd, J = 8.3, 1.5 Hz), 8.33 (1H, d, J = 1.5 Hz).

The synthetic route of 77317-55-6 has been constantly updated, and we look forward to future research findings.

Reference of 335349-57-0, 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. 335349-57-0, name is 5-Chloro-4-iodo-2-nitroaniline, This compound has unique chemical properties. The synthetic route is as follows.

To a suspension of 5-chloro-4-iodo-2-nitroaniline (Intermediate 1, 36.5 g, 122 mmol) in EtOH (800 mL) and water (150 mL) was added iron powder (38 g, 673mmol) and NEta4CI (16 g, 306 mmol). The mixture was heated under nitrogen at 5O0C overnight. Additional iron powder (38 g, 673 mmol) and NH4Cl (16 g, 306 mmol) were added and heating was continued for 45 h. The reaction mixture was cooled, filtered and concentrated. The residue was re-dissolved in ethyl acetate and washed with sodium bicarbonate solution. The organic phase was concentrated to afford the desired product as a gray solid, which was used in the next step without further purification.

The chemical industry reduces the impact on the environment during synthesis 5-Chloro-4-iodo-2-nitroaniline. I believe this compound will play a more active role in future production and life.

Electric Literature 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.

General procedure: A general procedure for the synthesis of diarylacetylenes 2 involved the addition of 2.0 mmol of arylacetylene to a mixture of 2.1 mmol of an aryliodide, 3.0 mmol of diisoproprylethylamine, 0.02 mmol of Pd(PPh3)4,and 0.02 mmol of CuI in water (7 mL). The mixture was stirred for 1-2 h at 75C. After cooling, the product was collected by filtration or extracted using dichloromethane and purified by recrystallization and/or chromatography.

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.

Adding a certain compound to certain chemical reactions, such as: 19099-54-8, name is 1-Iodo-2-isopropylbenzene, 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 19099-54-8, Recommanded Product: 1-Iodo-2-isopropylbenzene

0.3 mmol of sodium carbonate and 0.1 mmol of 1,2-bis(4-methoxyphenyl)acetylene,Tetrakis(triphenylphosphine palladium) 0.005 mmol, bis(2-diphenylphosphinophenyl)ether 0.005 mmol,Benzo[d][1,3]dioxol-5-ylboronic acid 0.2 mmol,0.3 mmol of 2-isopropyliodobenzene and 1 mL of N,N-dimethylformamide were added to a 15 mL reaction tube.Nitrogen was repeatedly filled 10 times, placed in an oil bath at 120 C, and reacted for 24 hours;Cooled to room temperature, the reaction was diluted with ethyl acetate, washed with water three times, the organic phase dried over anhydrous Na2SO4, filtered, and concentratedPurification by thin layer chromatography gave 26.3 mg of the desired product, yield 55%.

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2043-53-0, name is 1-Iodo-1H,1H,2H,2H-perfluorodecane, 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. Safety of 1-Iodo-1H,1H,2H,2H-perfluorodecane

General procedure: Perfluoroalkylethyl iodide (1.0 mol equiv.) (3-4 mmol) and NaN3 (1.2 mol equiv.) were added to dry DMSO (2 mL) in a 10 mL CEM microwave glass reactor tube, a magnetic stirring bead added and the system sealed. The tube was subjected to stirring and microwave irradiation at 250 W and 65 C for 1 h then immediately cooled to r.t.

The synthetic route of 2043-53-0 has been constantly updated, and we look forward to future research findings.

Application of 191348-14-8, 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. 191348-14-8, name is 2-Iodo-4-methoxyaniline belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Under anhydrous and anaerobic conditions, 0.1 mmol of 2-iodo-4-methoxyaniline was added.0.12 mmol of 2-trifluoromethyl 4-methoxybenzaldehyde, 0.3 mmol of selenium powder, 0.005 mmol of copper, 0.2 mmol of potassium hydroxide and 10 ml of DMSO solution,The reaction was refluxed at 120 C in a single-neck round bottom flask, and the reaction was monitored by TLC.Separation of pure methoxy-containing benzoselenazole compounds by column chromatographyThe reaction product was obtained by demethylation of boron tribromide (6 eq.).The product is a pale yellow oily compound.The yield was 25%.

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

Electric Literature of 2468-56-6,Some common heterocyclic compound, 2468-56-6, name is 6-Iodohex-1-yne, molecular formula is C6H9I, 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: Concentrated sulfuric acid (0.15 mL) was added under stirring at ambient temperature to a suspension of 25 mmole of uracil 3 or uracil derivatives, namely 6-methyluracil 4, thymine 5, quinazoline-2,4(1H,3H)-dione 6 and hexamethyldisilazane (HMDS, 62.5 mmol) in 100 mL of toluene. The mixture was refluxed for 4 h, the solvent and excessive HMDS were removed to afford bis(trimethylsilyl) ether derivative 7. This crude product was engaged in the next step without any previous purification. A solution of 40 mmole of appropriate alkyne (propargyl bromide, 5-iodo-1-pentyne, 6-iodo-1-hexyne) in DMF (3 mL) was added to the crude product 7 and the reaction mixture was stirred at 115-130 C for 12 h. After the solvent was distilled off under reduced pressure, 200 ml of chloroform was added to the residue, and the mixture was filtered. The filtrate was concentrated, and the residue was purified by column chromatography on silica gel using as eluent first petroleum ether, then petroleum ether-ethyl acetate (1.5:1) and then ethyl acetate. From the third fraction the target N1-alkynyl-3,4-dihydro-2,4-dioxopyrimidines (3a,b, 4b,c, 5a,b, 6a,b) were isolated.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 6-Iodohex-1-yne, its application will become more common.

Application of 111771-08-5, 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. 111771-08-5, name is 2-Fluoro-6-iodobenzoic acid belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Step A: (Z)-N’-((2-Fluoro-6-iodobenzoyl)oxy)acetimidamide. To a heterogeneous mixture of 2-fluoro-6-iodobenzoic acid (1 .51 g, 5.66 mmol) at 0 C in DCM (28 mL) was added oxalyl chloride (0.635 mL, 7.36 mmol) followed by DMF (0.15 mL). Gas evolution commenced immediately and after 5 min the ice bath was removed. When gas evolution had ceased and the mixture was homogeneous an aliquot was removed and quenched with MeOH. Formation of the methyl ester was confirmed by HPLC and the mixture was concentrated in vacuo. The viscous liquid was dissolved in fresh DCM (28 mL) and treated with solid N-hydroxyacetamidine (503 mg, 6.79 mmol) in several portions followed by TEA (1 .2 mL, 8.49 mmol) at 0 C. After stirring for 14 h at ambient temperature the mixture was washed with saturated aqueous NaHCO3 solution. The combined organic extracts were dried over Na2SO4, filtered andconcentrated in vacuo. Chromatography (Hex to 100% EtOAc/Hex) afforded the desired product as a colorless oil (1 .57 g, 86%). MS (ESI) mass calculated for C9H8FIN2O2, 321 .96; m/z found, 323.0. 1 H NMR (500 MHz, CDCI3): 7.70 – 7.65 (m, 1 H), 7.15 – 7.1 1 (m, 2H), 4.87 (br s, 2H), 2.06 (s, 3H).

The synthetic route of 2-Fluoro-6-iodobenzoic acid has been constantly updated, and we look forward to future research findings.

Electric Literature of 52548-14-8, 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. 52548-14-8, name is 2-Iodo-5-methylbenzoic acid, This compound has unique chemical properties. The synthetic route is as follows.

Part A. 2-iodo-5-methyl-benzoic acid benzyl ester A solution of 2-iodo-5-methylbenzoic acid (2 g, 7.6 mmol) in 20 ml DMF was treated with KHCO3 (0.92 g, 9.2 mmol) and then benzyl bromide (1.1 mL, 9.2 mmol). The resulting mixture was stirred overnight at rt under N2. Reaction was poured into water and extracted 3* with EtOAc. Combined extracts were washed with sat’d. NaHCO3 and brine, dried over anh.Na2SO4, filtered and evaporated. Flash chromatography gave the pure benzyl ester (2.62 g, 98%) as a colorless liquid.

The chemical industry reduces the impact on the environment during synthesis 2-Iodo-5-methylbenzoic acid. I believe this compound will play a more active role in future production and life.

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. 3718-88-5, name is 3-Iodobenzylamine hydrochloride, A new synthetic method of this compound is introduced below., Computed Properties of C7H9ClIN

take 5.88 g (21.8 mmol) 3-iodobenzylamine hydrochloride (C1) and 2.06 g (47.96 mmol) cyanamide (C2) to form a mixture that is heated and refluxed at 105 degrees Celsius for 4 hours. After cooling down, add water (10 mL) into the mixture to dissolve completely. Then add 10 mL aqueous solution of sodium bicarbonate (C3) (1.83 g, 21.8 mmol) to obtain an insoluble solid (precipitate). After filtering, washing with cold water, acetone and ether and drying, the compound C4 (6.7 g, 91%) is obtained.Analysis of the synthesis product: IR (KBr) nu 3352 (NH), 1697 (CO) cm-1. 1H NMR (CD3OD) delta 7.71 (s, 1 H, C6H4), 7.68 (d, J=7.8 Hz, 1 H, C6H4), 7.33 (d, J=7.8 Hz, 1 H, C6H4), 7.15 (t, J=7.8 Hz, 1 H, C6H4), 4.36 (s, 2 H, CH2). 13C NMR (CD3OD) delta 160.51 (CO), 157.67 (CN), 139.27, 136.92, 136.12, 130.52, 126.41 and 94.0 (C6H4), 43.58 (CH2)

The synthetic route of 3718-88-5 has been constantly updated, and we look forward to future research findings.