Iodides-buliding-blocks

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. 136618-42-3, name is Benzyl 4-iodobenzoate, A new synthetic method of this compound is introduced below., SDS of cas: 136618-42-3

Intermediate 8: Phenylmethyl 4-(4-amJno-6-methyl-1 H-indazol-1-yl)benzoate; 6-Methyl-1 /-/-indazol-4-amine (5.48g, 37.3mmol), copper (I) iodide (71 mg, 0.37mmol), frans-1 ,2-cyclohexanediamine (420mg, 0.37mmol) and tripotassium phosphate (16.6g, 78.3mmol) were added to a solution of phenylmethyl 4-iodobenzoate (12.61g, 37.3mmol) in 1 ,4-dioxane (2OmL). More 1 ,4-dioxane (3OmL) was added and the mixture heated under reflux for 3 hours 15 min and then allowed to gradually cool to room temperature and partitioned between water and ethyl acetate. The aqueous phase was extracted once more with ethyl acetate and the combined organic extracts were washed with brine and dried and evaporated to give a brown solid (13.58g). This crude product was combined with material (0.66g) from a similar reaction and purified by column chromatography on silica gel (Merck 7734, 50OmL) eluting initially with 10% and finally with 20% ethyl acetate in dichloromethane. Evaporation of product containing fractions gave a brown-yellow solid (5.12g) which was dissolved in ethyl acetate (4OmL) at 60 and warm cyclohexane (7OmL) was added. The mixture was then cooled in ice and the precipitate was collected by filtration, washed with cyclohexane:ethyl acetate (4:1 , 4OmL) and dried to give the title compound as a beige solid (4.29g). LCMS (System A): tRET = 3.77 min; MNH4+ = 358

The synthetic route of 136618-42-3 has been constantly updated, and we look forward to future research findings.

Related Products of 19393-94-3,Some common heterocyclic compound, 19393-94-3, name is 2,4-Dibromo-1-iodobenzene, molecular formula is C6H3Br2I, 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.

Add 30.0 g of intermediate 1-1,500 ml of N,N-dimethylformamide to a 1 L three-necked flask, and replace the nitrogen gas. Then added 75.3 g of intermediate 1-2, 57.5 g of potassium carbonate, 1.2 g of bis(2-diphenylphosphinophenyl) ether, 2.4 g of palladium acetate; The reaction solution was heated to 150 C, and the reaction was stirred for 24 hours. The reaction was stopped after TLC was monitored to complete the reaction. After the reaction solution was cooled to room temperature, it was poured into 1.5 L of water to precipitate a solid. After washing with water to neutral, the crude product was passed through a column, and toluene was recrystallized to give 42.4 g of intermediate 1 in a yield of 68.5%.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 2,4-Dibromo-1-iodobenzene, 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. 83027-73-0, name is 5-Bromo-1-chloro-3-fluoro-2-iodobenzene, A new synthetic method of this compound is introduced below., name: 5-Bromo-1-chloro-3-fluoro-2-iodobenzene

Dry methanol (160 mL) was cooled to 10 C and potassium hydroxide (14.9 g) was added portion wise over 25 minutes. Once dissolved, this solution was added over 15 minutes to a refluxing solution of 5-bromo-1-chloro-3-fluoro-2-iodo-benzene (CAS 83027-73-0, 40.0 g) in dry methanol (320 mL). After 46 hours refluxing the reaction mixture was concentrated and partitioned between water (500 mL) and ethyl acetate (500 mL). The aqueous phase was extracted with further ethyl acetate (2 x 200 mL). The combined organic layers were washed with brine (400 mL), dried over magnesium sulfate, concentrated and purified by chromatography on silica eluting with ethyl acetate in iso-hexane to give 5-bromo-1-chloro-2- iodo-3-methoxy-benzene (37.767 g) as a pale pink solid 1H NMR (500 MHz, CDCI3) 7.28 (d, 1 H), 6.82 (d, 1 H), 3.90 (s, 3H).

The synthetic route of 83027-73-0 has been constantly updated, and we look forward to future research findings.

These common heterocyclic compound, 141738-80-9, name is 3-Chloro-4-iodobenzotrifluoride, 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. Recommanded Product: 141738-80-9

General procedure: To a mixture of the respective halide (0.979 mmol), Pd(dba)2 (0.049 mmol) and Q-Phos (0.049 mmol) in 2.5 mL THF were added 2.15 mL of 2-tBu-oxy-2-oxoethylzinc chloride (0.5M solution in Et20). The reaction mixture was flushed with argon and then heated to 70C for 6 h. After concentration of the solvent in vacuo the residue was dissolved in EtOAc and extracted with water and brine. The organic layer was dried over MgS04, concentrated in vacuo and purified by CC using Hept/EtOAc to give the desired ester derivatives. 2-Chloro-4-(trifluoromethyl)phenylacetic acid tBu-ester

The synthetic route of 3-Chloro-4-iodobenzotrifluoride has been constantly updated, and we look forward to future research findings.

Related Products of 52914-23-5, 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. 52914-23-5, name is 2-(4-Iodophenyl)ethanol, This compound has unique chemical properties. The synthetic route is as follows.

Into a 50-mL 3-necked round-bottom flask under N2 was placed a solution of 2- (4-iodophenyl)ethanol (470 mg, 1.90 mmol) in tetrahydrofuran (10 mL). Sodium hydride (91 mg, 3.8 mmol, 1.2 equiv.) was added at 0 0C. The mixture was warmed to room temperature and stirred at room temperature for 2 h. Benzyl bromide (272 muL, 3.9 mmol, 1.2 equiv.) and tetra-w-butylammonium bromide (61 mg, 0.19 mmol, 0.10 equiv.) were added at room temperature. The resulting solution was stirred for 20 h at room temperature. The reaction was then quenched by the addition of 10 mL of aqueous NH4CI. The solution was extracted with 3 x 60 mL of EtOAc, and the organic layers were combined and washed with 50 mL of brine. After evaporation, the residue was applied onto a silica gel column, and the product was eluted with EtO Ac/petroleum ether 1:20 to furnish 600 mg (94%) of l-[2- (benzyloxy)ethyl]-4-iodobenzene as a white solid.

The chemical industry reduces the impact on the environment during synthesis 2-(4-Iodophenyl)ethanol. I believe this compound will play a more active role in future production and life.

Related Products of 26260-02-6, A common heterocyclic compound, 26260-02-6, name is 2-Iodobenzaldehyde, molecular formula is C7H5IO, 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.

Was added 2-iodo-benzaldehyde (1.0 mmol) in a round bottom flask, acetonitrile (2ml), trimethylsilyl azide (3.0mmol), stirred for 1-2 min at 80 deg.] C in a heating block, then added CuBr2(2.0mmol), and then the system was sealed and heated at 80 , 3 hours, and extracted with ethyl acetate, after completion of the reaction, was concentrated by a simple column chromatography (eluent petroleum ether (60 ~ 90 ) and a mixed solvent of ethyl acetate) to give the product 2-iodo-benzonitrile, 68% yield.

The synthetic route of 26260-02-6 has been constantly updated, and we look forward to future research findings.

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. 481075-59-6, name is 1-Bromo-3-iodo-5-(trifluoromethyl)benzene, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 1-Bromo-3-iodo-5-(trifluoromethyl)benzene

Step 1: To a solution of 1-bromo-3-iodo-5-(trifluoromethyl)benzene (55) (2.0 g, 5.7 mmol), thiobenzoic acid (56), (0.67 ml, 5.7 mmol), 1,10-phenanthroline (0.21 g, 1.08 mmol) in toluene were added DIPEA (2 ml) and CuI (0.11 g, 0.57 mmol). The resulting mixture was degassed by bubbling argon for 2 min and stirred at 110 C. for 24 hrs under argon. The reaction mixture was filtered through Celite and concentrated under reduced pressure. Purification by flash chromatography (5% to 15% EtOAc hexanes gradient) gave benzothioate 57 as a light yellow oil. Yield (1.7 g, 82%); 1H NMR (400 MHz, CD3OD) delta 7.96-8.04 (m, 4H), 7.80-7.83 (m, 1H), 7.69 (tt, J=6.0, 1.6 Hz, 1H), 7.53-7.58 (m, 2H).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 481075-59-6.

Related Products of 5469-33-0, 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. 5469-33-0, name is (Iodomethyl)cyclohexane, This compound has unique chemical properties. The synthetic route is as follows.

EXAMPLE J-1 Procedure for Preparation of 4(5)-cyclohexylmethyl-1H-imidazole: Procedure- 2-Tert-butyldimethylsilyl-1-dimethylsulfamoyl imidazole (1) (4.1 g, 14.2 mmol) is taken up in 47 mL of anhydrous THF and cooled to -20 C. n-BuLi (8.9 mL, 14.2 mmol) is added dropwise to the solution of (1). The resultant solution is stirred at -20 C. for 45 min. Cyclohexylmethyl iodide (2) (3.14 g, 14 mmol) is then added dropwise to the reaction mixture. Then reaction is warmed to rt and stirred overnight. The next day the reaction is quenched with saturated ammonium chloride and diluted with water. The mixture is extracted with ethyl acetate (3*100 mL). The organic layers are combined and washed with water followed by brine. The organic phase is dried over sodium sulfate and the solvent removed under reduced pressure. Flash chromatography (4:1 ethyl acetate/hexane) affords 2.26 g (5.6 mmol) of 5-cyclohexylmethyl-2-tert-butyldimethylsilyl-1-dimethylsulfamoyl imidazole (3).

The chemical industry reduces the impact on the environment during synthesis (Iodomethyl)cyclohexane. I believe this compound will play a more active role in future production and life.

Related Products of 172681-47-9, 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. 172681-47-9, name is 2-Amino-6-iodotoluene belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To a mixture of 3-iodo-2-methylbenzenamine (4.45 g, 19.1 mmol, 1.0 equiv), bis(pinacolato)diboron (5.80 g, 22.91 mmol, 1.2 equiv), and potassium acetate (5.60 g, 57.3 mmol, 3.0 equiv) in DMSO (70 mL), was added dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium dichloromethane adduct (421 mg, 0.573 mmol, 0.03 equiv). The mixture was heated at 80 C. until the starting material was consumed. The solvent was removed in vacuo and the residue taken up in EtOAc (ca. 200 ml) and washed with water and brine. After drying with Na2SO4 and concentrating in vacuo, the residue was purified by silica gel chromatography (3:1 hexanes:EtOAc to 1:3 hexanes:EtOAc) to provide 2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenamine. MS (M+H+) 234; Calculated for C13H20BNO2: 233.2

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

Related Products of 42048-11-3, 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. 42048-11-3 name is 2-Chloro-6-iodotoluene, 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.

Specific operation: In a 25 mL reaction flask equipped with a magnetic stirrer, a metal catalyst palladium acetate (6.7 mg, 0.03 mmol), triphenylphosphine (20.0 mg, 0.075 mmol) was added,S-2-bromophenyl-S-methyliminosulfanone (70.0 mg, 0.3 mmol), norbornene (56.4 mg, 0.6 mmol), potassium carbonate (82.8 mg, 0.6 mmol),Protect with nitrogen (at least three nitrogen cycles), add acetonitrile (3 ml) and 2-chloro-6-iodotoluene (90.9 mg, 0.36 mmol) successively in a nitrogen stream and close the vessel.The reaction solution was heated to 80 C. for about 12 h, and the reaction was complete by TLC.After the treatment, the reaction solution was first diluted with 15 ml of ethyl acetate, and then the inorganic substances such as the catalyst and the alkali were removed by suction filtration through a sand funnel containing silica gel.The resulting filtrate was separated by flash column chromatography to give the pure product 8-chloro-5,7-dimethyldibenzo[c,e][1,2]thiazine-5-oxide compound 3i. Yield: 45%.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-Chloro-6-iodotoluene, and friends who are interested can also refer to it.