Category: 619-58-9

Reference of 619-58-9, 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. 619-58-9, name is 4-Iodobenzoic acid belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Method B.A solution of 4-methoxyphenyl boronic acid (1 g, 6.58 mmol), 4-iodobenzoic acid (1.63 g, 6.58 mmol) and cesium carbonate (5.36 g, 16.45 mmol) in 3:1 1,2- dimethoxyethane/water was deoxygenated with nitrogen for 15 minutes. Pd(PPtLs)4 (380 mg, 0.329 mmol) was then added and the solution was heated to 80 C for 6h. The reaction was allowed to cool and acidified with 2M HCl which caused a precipitate to form. The precipitate was filtered and the filtrate was extracted twice with dichloromethane. The organic layer was then dried over magnesium sulfate, filtered through diatomaceous earth filter aid (CELITE) and evaporated under reduced pressure to yield a combined 1.5O g (95%). 1HNMR (DMSO): delta 7.99 (d, J=8.4 Hz, 2H), 7.74 (d, J=8.4 Hz, 2H), 7.69 (d, J=8.7 Hz, 2H), 7.04 (d, J=8.7 Hz, 2H), 3.80 (s, 3H). 13CNMR (DMSO): delta 167.17, 159.49, 143.90, 131.16, 129.91, 128.77, 128.09, 126.08, 114.45, 55.17.

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

Reference:
Patent; GEORGETOWN UNIVERSITY; WO2009/146013; (2009); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

619-58-9, name is 4-Iodobenzoic acid, 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. 619-58-9

General procedure: A 20mL Schlenk tube with a magnetic stir bar was charged with aryl halide (2mmol), arylboronic acid (2.4mmol), K2CO3 (5mmol), 10mL of solvent [H2O, H2O-MeOH (1:1), H2O-EtOH (1:1), H2O-EG (1:1)] and an aliquot of 0.01M solution of palladium complexes PdCl2(L)2 or Pd[(L)4]Cl2 in MeOH (0.001-0.2mol%) under air atmosphere. The reaction mixture was placed in a preheated oil bath: at 100C for MeOH-H2O, at 110C for EtOH-H2O, at 140C for H2O and at 160C for EG-H2O; and stirred under reflux for the given time. After this time, the mixture was cooled, acidified by 5M HCl (in the case of acids) and diluted with 10mL of H2O and 10mL of Et2O (or EtOAc). The organic phase was separated, and the aqueous layer was extracted with Et2O EtOAc) (2¡Á10mL). The combined organic layers were washed with H2O (10mL), brine (10mL), and dried over Na2SO4. The pure products were obtained by a simple filtration of ether solution through silica gel pad and evaporation of a solvent.

Statistics shows that 619-58-9 is playing an increasingly important role. we look forward to future research findings about 4-Iodobenzoic acid.

Reference:
Article; Bumagin, Nikolay A.; Catalysis Communications; vol. 79; (2016); p. 17 – 20;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

619-58-9, The chemical industry reduces the impact on the environment during synthesis 619-58-9, name is 4-Iodobenzoic acid, I believe this compound will play a more active role in future production and life.

4-lodobenzoic acid (10 g, 40.3 mmol) was dissolved in dry toluene (100 ml, dried over mol. sieves). The solution was heated to 70 C under a flow of nitrogen. A solution of lambda/,lambda/-dimethylformamide di-tert-butyl acetal (24.6 g, 121 mmol) in toluene (25 mL) was added over ca. 30 min. The reaction was mixed for 16 h. At some point the heating unit failed, so the reaction cooled from 70 C to rt. The solution was heated to 70 C for and mixed for 5 h. The sample was concentrated under vacuum, and AcOEt (400 ml) was added. The solution was then washed with 1 :1 sat. NaHCO3/water (150 ml), and sat. NaHCO3, water and sat. NaCI (75 mL each). The organic phase was dried (MgSO4) and concentrated under vacuum to yield light brown oil. HPLC-MS m/z: 327 (M+23).1H-NMR (CDCI3, 400 MHz) delta 7.77 (d, 2H), 7.69 (d, 2H), 1.58 (s, 9H).

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

Reference:
Patent; NOVO NORDISK A/S; WO2007/128817; (2007); A2;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. 619-58-9, name is 4-Iodobenzoic acid, A new synthetic method of this compound is introduced below., 619-58-9

General procedure: A solution of 4-iodotoluene (1.05 g, 4.83 mmol) in a mix of 19.3 mL of n-Bu4NOH 1.5 M aqueous solution and 19.3 mL of DMSO (for an overall 0.125 M solution vs 4-iodotoluene) was prepared. Using Flow commander software, a continuous flow experiment was designed in order to control the flow stream of the pump matching 20 min of residence time (the flow stream was set at 0.50 mL/min). 37 mL of the reaction solution was injected (corresponding to 4.63 mmol of 4-iodotoluene that will be used to calculate the isolated yield; this method being used in order to maximise the reproducibility for the reported yield)using direct injection mode and the reagent stream was pumped into the 10 mL copper reactor (1.0 mm i.d.) at 150 C. 2 X 8 bar back pressure regulators (BPR) were placed in series atthe end of the reactor, allowing safe heating of the solvent. 48 mL of the crude reaction solution was then collected into 100 mL glass vial. A reconditioning, consisting of 3 mL of DMF followed by 3 mL of a 10% aqueous acetic acid solution, was run after the experiment in order to clean the reactor. The crude reaction solution was then acidified to pH = 1 with 2 N HCl. Water (150 mL) was added and the mixture was extracted with Et2O (3 X 150 mL). The combined organic layers were dried over anhydrous MgSO4, filtered and concentrated under vacuum. The crude mixture was purified by automated flash column chromatography using a 24 g column and a 30-80% DCM/Hexanes gradient affording 406 mg of 2a (81% yield).

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.

Reference:
Article; Cyr, Patrick; Charette, Andre B.; Synlett; vol. 25; 10; (2014); p. 1409 – 1412;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com