Iodides-buliding-blocks

Reference of 620-05-3, 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. 620-05-3, name is (Iodomethyl)benzene belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: In a flame-dried round-bottom flask, beta-amidoester (9) (1 mmol; 1 equiv) was taken in DMF (5 mL) at room temperature. To this reaction mixture KOt-Bu (1.2 mmol; 1.2 equiv) was added. After 5 minutes of stirring at same temperature alkyl halide (1.05 mmol; 1.05 equiv) was added and stirring was continued for 15 minutes. Upon completion of the alkylation (judged by TLC), it was diluted with 10 mL of EtOAc and quenched with water. The organic extracts were dried over anhydrous sodium sulphate and concentrated under vacuum. The crude product was purified by flash chromatography (hexane and EtOAc as eluents) to afford compounds 10.

The synthetic route of (Iodomethyl)benzene has been constantly updated, and we look forward to future research findings.

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. 31827-94-8, name is 2-Bromo-1-(4-iodophenyl)ethanone, A new synthetic method of this compound is introduced below., Recommanded Product: 2-Bromo-1-(4-iodophenyl)ethanone

Step l-515a. Into a mixture of 2-bromo-l-(4-iodophenyl)ethanone (5g, 15.4 mmol) and (S)-l-(tert-butoxycarbonyl)pyrrolidine-2-carboxylic acid (3.48g, 16.1 mmol) in acetonitrile (40 mL) was added diisopropylethylamine (2.4 mL, 17 mmol). The resulting mixture was stirred at rt for 3 hours before being partitioned between EtOAc and aqueous NaHCO3. The organic phase was separated, dried (Na2SOzI) and concentrated to afford a brown oil. It was purified by flash column chromatography (silica, hexane-EtOAc) to give the desired product as light yellow oil (6.0 g, 86%). ESIMS m/z = 481.94 [M+Naf.

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.

Adding a certain compound to certain chemical reactions, such as: 103440-52-4, name is Methyl 2-Iodo-5-methylbenzoate, 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 103440-52-4, name: Methyl 2-Iodo-5-methylbenzoate

General procedure: This kind of general experimental procedure is based on our already published procedure.13 The general procedure (GP) was carried out with ortho-iodoester 1a-d (105.0-136.0 mg, 0.40 mmol) and aldehyde 2a-k (195.0-313.0 mg, 1.6 mmol) in the presence of Pd(OAc)2 (5.0 mg, 5 mol%), Ag2O (111.3 mg, 0.48 mmol), and TBHP (257.1 mg, 2.0 mmol) allowing the reaction mixture to stir at 120 C for 12-20 h. Progress of the reaction was monitored by TLC until the ortho-iodoester 1a-d had completely reacted. Then the reaction mixture was removed from the oil bath and allowed to reach r.t. DCE (2 mL) and concd H2SO4 (1.0 mL) were added and the mixture was stirred at 60 C for 5 min to 2 h. Progress of the product formation was monitored by TLC until the reaction was complete. The mixture was quenched by the addition of aq NaHCO3 and then extracted with CH2Cl2 (3 * 15 mL). The combined organic layers were washed with brine, dried (Na2SO4), and filtered. Evaporation of the solvent under reduced pressure and purification of the crude material by silica gel column chromatography (PE/EtOAc) furnished the products 3 (57.0-86.0 mg, 55-69%). The products 3aa, 3ac, 3ai, 3aj, 3ak, 3ba, 3bc, 3be, and 3bj are reported in the literature.9

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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. 3930-83-4, name is 2-Iodobenzamide, A new synthetic method of this compound is introduced below., name: 2-Iodobenzamide

General procedure: 2-Iodobenzamide 1a (1.0 equiv.), 2-aminoisovaleric acid 2a (3.0 equiv.), Cs2CO3 (3.0 equiv.) and GO/Fe3O4-CuI (Cu+ 0.03 equiv.) were added to DMSO/ethylene glycol (60:1, v/v) in a round bottom flask. The reaction was monitored by TLC. The product was purified by column chromatography with petroleum ether/ethyl acetate (3:1, v/v) to give pure white solid 3a.

The synthetic route of 3930-83-4 has been constantly updated, and we look forward to future research findings.

Application 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.

Production Example 15-1 6-Iodo-1H-indazole An aqueous solution (4 mL) of sodium nitrite (1.1 g) was dropwise added to an acetic acid solution (360 mL) of (5-iodo-2-methylphenyl)amine, and after the addition, this was stirred overnight at room temperature. The solvent was evaporated off under reduced pressure, the obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=9:1 to 4:1) to obtain the entitled compound (1 g) as an orange powder.

The synthetic route of 83863-33-6 has been constantly updated, and we look forward to future research findings.

Reference of 49827-15-8, 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. 49827-15-8, name is tert-Butyl 2-iodoacetate belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To a stirred solution of 44 (3.8 g, 1.83 mmol) in anhydrous THF 60 mL under Argon was added NaHMDS (2.2 mL 2.2 mmol, pre-cooled to -78° C.) in THF 30 mL slowly at -78° C. via cannula and the mixture was stirred for 2 min. at -78° C. ICH2CO2tBu (2.35 g, 9.713 mmol) in THF 10 mL was added slowly to the above mixture at -78° C. The dry ice/acetone bath was removed and the stirring was continued for 30 minutes and was poured into NH4Cl aq. solution. The extractive work-up with EA and purification by column chromatography gave 45-1 (upper spot on TLC plate) and 45-2 (lower spot on TLC plate) as two diastereomers about 1:1 mixture (2.9 g, 61percent, combined yield) as yellow oil. 1H NMR (45-1, CDCl3) 7.28-7.22 (9H, m), 6.08 (1H, m), 5.20-5.16 (2H, m), 4.92 (1H, dd, J=2.4 and 8.4 Hz), 4.78 (1H, m), 4.17 (1H, t, J=8.6 Hz), 3.95 (1 H, dd, J=2.7 and 8.8 Hz), 3.35 (1H, t, J=10.0 Hz), 3.15-2.98 (2H, m), 2.75 (1H, dd, J=11.5 and 17.6 Hz), 2.61 (1H, dd, J=3.7 and 17.2 Hz), 1.51 (9H, s), 1.41 (3H, d, J=13.7 Hz), 1.30 (9H, s). 1H NMR (45-2, CDCl3) 7.34-7.15 (9H, m), 6.07 (1H, m), 5.19-5.15 (2 H, m), 4.87 (1H, m), 4.78 (1H, m), 4.05 (1H, t, J=8.4 Hz), 3.96 (1H, m), 3.38 (1H, t, J=9.4 Hz), 3.3.15-3.00 (2H, m), 2.74 (1H, dd, J=11.2 and 17.2 Hz), 2.57 (1H, dd, J=3.9 and 17.4 Hz), 1.51 (9H, s), 1.38 (3H, d, J=13.7 Hz), 1.30 (9H, s).

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, tert-Butyl 2-iodoacetate, other downstream synthetic routes, hurry up and to see.

Some common heterocyclic compound, 160976-02-3, name is 5-Bromo-1,3-difluoro-2-iodobenzene, molecular formula is C6H2BrF2I, 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. COA of Formula: C6H2BrF2I

A 2 M aqueous Na2CO3 solution (1 .51 mL) is added to a mixture of 5-bromo-1 ,3- difluoro-2-iodo-benzene (1 .00 g) and 5-(4,4,5,5-tetramethyl-[1 ,3,2]dioxaborolan-2-yl)- 2-triisopropylsilanyl-oxazole (1 .87 g) in 1 ,4-dioxane (9 mL) and methanol (3 mL). The mixture is sparged with argon and [1 ,1 ‘-bis(diphenylphosphino)-ferrocene]dichloro- palladium dichloromethane complex (380 mg) is added. The resulting mixture is stirred at 80C overnight. Since the conversion is not complete, the same amounts of 5-(4,4,5,5-tetramethyl-[1 ,3,2]dioxaborolan-2-yl)-2-triisopropylsilanyl-oxazole, 2 M aqueous Na2CO3 solution, and catalyst are added and the mixture is again stirred overnight at 80C. The triisopropylsilyl protecting group is cleaved under these conditions. After cooling to room temperature, ethyl acetate and water are added. The aqueous phase is extracted with ethyl acetate and the combined organic phases are washed with brine, dried over MgSO4, and concentrated in vacuo. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 1 :0? 1 :1 ) to afford the title compound. LC (method 4): tR = 1 .18 min; Mass spectrum (ESI+): m/z = 260/262 (Br) [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 160976-02-3, its application will become more common.

Synthetic Route of 19718-49-1, 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. 19718-49-1, name is Methyl 4-amino-3-iodobenzoate belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

(a) 1H-Indole-2,5-dicarboxylic acid 5-methyl ester A solution of 25 g 4-Amino-3-Iodo-benzoic acid methyl ester, 19 ml 2-Oxo-propionic acid, 30.4 g 1,4-Diaza-bicyclo[2.2.2]octane and 1 g Pd(OAc)2 in 200 ml DMF was heated under argon to 100 C. After 5 h the reaction mixture was concentrated under reduced pressure and the residue was partitioned between 300 ml ethyl acetate and 200 ml 1 M hydrochloric acid. The organic layer was dried over MgSO4 and the solvent removed under reduced pressure to yield a yellow solid (6.4 g). From the aqueous layer additional product slowly precipitated as a white solid (7.9 g) which was collected by filtration. Both fractions were combined, dried in vacuo and used in the next reaction without further purification. Yield: 14.3 g. MS (ES+): m/e=220.

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

Application of 355-43-1,Some common heterocyclic compound, 355-43-1, name is 1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-6-iodohexane, molecular formula is C6F13I, 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.

-78 CCooled titanium-dichloride(Cp 2 TiCl 2, 59.8 mg, 0.24 mmol) in ether (2.4 mL)To the solution was added i-propyl magnesium chloride (2.0 M in ether solution, 0.24 mL, 0.48 mmol)1,4-Dioxane (46 [mu] L, 0.54 mmol)And n-tridecafluorohexyl iodide (C 6 F 13 I, 78 muL, 0.36 mmol) were charged, then the temperature was adjusted to -50 C. and stirred for 2 hours.Subsequently, benzaldehyde (20 muL, 0.20 mmol) was added, the temperature was raised, and the mixture was stirred at room temperature for 1 hour.After completion of the reaction, 1 N hydrochloric acid was added to terminate the reaction, followed by extraction with ether three times. The organic layers were combined, dried over sodium sulfate, filtered, and the solvent was distilled off under reduced pressure to obtain a crude product. The obtained crude product was purified by silica gel column chromatography (hexane / ethyl acetate = 20/1 (v / v)) to obtain 2,2,3,3,4,4,5,5,6, 6,7,7,7-tridecafluoro-1-phenyl-1-hydroxyheptane (85.2 mg, yield:> 99%).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-6-iodohexane, its application will become more common.

Some common heterocyclic compound, 7425-53-8, name is Ethyl 4-iodobutanoate, molecular formula is C6H11IO2, 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: 7425-53-8

Example 2 1-methyl-3-(carboethoxypropyl)-7-(pivaloyloxymethyl)xanthine A mixture of 1-methyl-7-(pivaloyloxymethyl)xanthine (350mg, 1.25 mmes) sodium carbonate (265mg, 2.50 mmoles) and ethyl 4-iodobutyrate (384 mul, 2.50 mmole) in 5.8ml dry DMF was stirred under nitrogen at room temperature for 18 hours. Water was added and the reaction mixture extracted with chloroform. After drying, the extracts were stripped to leave a yellow oil which goes to chromatographed on four thick silica gel plates with 10% EtOH/CHCl3. The band was scraped off and eluted with 100ml of 25% EtOH/CHCl3 to yield 609mg of the desired product as an oil.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 7425-53-8, its application will become more common.