Tag: M.W=200-300

Adding a certain compound to certain chemical reactions, such as: 1643-29-4, name is 3-(4-Iodophenyl)propanoic acid, 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 1643-29-4, Formula: C9H9IO2

lntermediate-2; Methyl 3-(4-iodophenyl)propanoate.; Methanol (5 ml.) under nitrogen at O0C was added AcCI (0.4 ml_, 5.63 mmol). The reaction was stirred for 10 min before slow addition of 3-(4-iodophenyl)propanoic acid (498 mg, 1.80 mmol). The reaction was stirred for additional VA hour at room temperature, before the mixture was concentrated under vacuum, re-dissolved in MeOH and concentrated to give 512 mg (98%) of a pure white solid. Rf: 0.39 (EtOAc:hexanes, 1 :4); 1HNMR (CDCI3) delta 7.61-7.59 (m, 2H), 6.97- 6.94 (m, 2H), 3.66 (s, 3H), 2.92-2.87 (t, 2H, J = 7.5 Hz), 2.63-2.58 (t, 2H, J = 7.5 Hz); 13CNMR (CDCI3) delta 173.0, 140.1 , 137.5, 130.4, 91.4, 51.7, 35.4, 30.4; EI-MS m/z 290.0 (MH+).

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it.

Reference:
Patent; SYDDANSK UNIVERSITET; ULVEN, Trond; CHRISTIANSEN, Elisabeth; WO2010/12650; (2010); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Reference of 20555-91-3, 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. 20555-91-3, name is 1,2-Dichloro-4-iodobenzene, This compound has unique chemical properties. The synthetic route is as follows.

EXAMPLE 16 (3R,4S)-4-(3′,4′-Dichlorobiphenyl-4-yloxy)-1-pyridin-3-yl-pentan-3-ol, oxalic acid salt Prepared according to the method described in Example 12b) from (1S,2R)-4-[2-(tert-butyldimethylsilanyloxy)-1-methyl-4-pyridin-3-ylbutoxy]benzeneboronic acid (0.20 g, Example 11)), 3,4-dichloriodobenzene (0.273 g), 2M aqueous sodium carbonate (0.5 ml) and tetrakis(triphenylphosphine)palladium (0) (0.025 g) in toluene (5 ml) and ethanol (1 ml). The reaction mixture was heated at 100 C. for 4 hours. After cooling, the solution was concentrated under reduced pressure. Concentrated hydrochloric acid (1 ml) was added to a solution of the residue in 4:1 methanol:water (5 ml) and the suspension was stirred at room temperature for 3 hours. After work up, the residue was purified by normal-phase HPLC eluding with a gradient of 0-25% ethanol in dichloromethane to give a gum, of which the oxalate salt was made (0.23 g). m.p. 86.4-88.4 C. MS (APCI) 402/404 (M+H)+(free base) 1H NMR (DMSO) 8.51(1H, d); 8.46(1H, dd); 7.62(1H, d); 7.55(1H, dt); 7.48-7.45(3H, m); 7.36(1H, dd); 7.23(1H, dd); 6.93(2H,d); 4.39(1H, dq); 3.87-3.85(1H, m); 2.95-2.91(1H, m); 2.76-2.77(1H, m); 2.21(1H, br.s); 1.89-1.84(2H, m); 1.30(3H, d).

The chemical industry reduces the impact on the environment during synthesis 1,2-Dichloro-4-iodobenzene. I believe this compound will play a more active role in future production and life.

Reference:
Patent; AstraZeneca AB; US6300352; (2001); B1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Electric Literature of 58755-70-7, The chemical industry reduces the impact on the environment during synthesis 58755-70-7, name is 1-Iodo-4-methoxy-2-nitrobenzene, I believe this compound will play a more active role in future production and life.

General procedure: The appropriate 4-substituted-1-iodo-2-nitrobenzene 10 (1mmol), appropriate 1,3-disubstituted-5-aminopyrazole 11 (1.3mmol), and anhydrous potassium carbonate (248mg, 1.8mmol) were heated in the presence of rac-BINAP (23mg, 0.036mmol, 3.7mol%), Pd2dba3 (23mg, 0.024mmol, 2.5mol%), and 18-crown-6 (10mg, 0.038mmol) in toluene (8mL, purged with argon) at 100C. The reaction was carried out under argon for 24h. After cooling the reaction mixture was filtered and purified using column chromatography on aluminium oxide with toluene, or a toluene-ethyl acetate mixture (10:1) as an eluent. The product was recrystallized from toluene.

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, 1-Iodo-4-methoxy-2-nitrobenzene, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Danel, Andrzej; Wojtasik, Katarzyna; Szlachcic, Pawe?; Gryl, Marlena; Stadnicka, Katarzyna; Tetrahedron; vol. 73; 34; (2017); p. 5072 – 5081;,
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. 214279-40-0, name is 2-Iodo-4-methoxy-1-nitrobenzene, A new synthetic method of this compound is introduced below., category: iodides-buliding-blocks

To a solution of 3-iodo-4-nitroanisole (4.21 g, 15.1 mmol) in 1,2-dimethoxyethane (50 mL) were added 4,4,5,5-tetramethyl-2-(3,3,5,5-tetramethylcyclohex-1-enyl)[1,3,2]dioxaborolane (4.78 g, 18.1 mmol) produced in Example (4b), tripotassium phosphate (4.81 g, 22.7 mmol) and water (3 mL). Then, tetrakis(triphenylphosphine)palladium(0) (870 mg, 0.755 mmol) was added to the mixture while stirring at room temperature under a nitrogen atmosphere. The mixture was then further stirred for 13 hours at an external temperature of 70 C. To the reaction mixture were added tetrakis(triphenylphosphine)palladium(0) (870 mg, 0.755 mmol) and water (3 mL), followed by stirring for 26 hours at an external temperature of 100 C. The reaction mixture was cooled, and then ethyl acetate was added and the mixture was filtered through Celite. The filtrate was concentrated to give a residue, which was subjected to extraction with ethyl acetate, and the organic layer was washed with brine. The organic layer was dried over anhydrous magnesium sulfate and then the desiccant was filtered off and the filtrate was concentrated under reduced pressure. The resultant residue was purified by silica gel column chromatography (ethyl acetate/heptane) to give 1.5 g of the title compound as a yellow solid. 1H-NMR (400 MHz, CDCl3) delta: 1.05 (s, 6H), 1.07 (s, 6H), 1.41 (s, 2H), 1.99 (d, J=1.6 Hz, 2H), 3.88 (s, 3H), 5.35 (m, 1H), 6.68 (d, J=2.4 Hz, 1H), 6.81 (dd, J=9.2, 2.4 Hz, 1H), 7.91 (d, J=9.2 Hz, 1H).

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:
Patent; Kawahara, Tetsuya; Kotake, Makoto; Yoneda, Naoki; Hirota, Shinsuke; Ohkuro, Masayoshi; US2005/261291; (2005); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Electric Literature of 40400-15-5, 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. 40400-15-5, name is 2-(2-Iodophenyl)acetonitrile belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: A flask was equipped with a magnetic stir bar and charged with 1Hpyrrole-2-carbaldehyde (2a; 19.0 mg, 0.2 mmol, 1.0 equiv), 2-bromophenylacetonitrile(1a; 39.2 mg, 0.2 mmol, 1.0 equiv), and K3PO4(63.6 mg, 0.3 mmol, 1.5 equiv). The flask was evacuated and filledwith N2, and then anhydrous DMSO (2.0 mL) was introduced via a syringe.The flask was heated in a 130 C oil bath for 24 h, at which timeTLC analysis [petroleum ether (bp 60-90 C)-EtOAc, 10:1] indicatedcomplete consumption of 2a and 1a. The reaction mixture was cooledto r.t. and added to a sat. solution of NaCl (20 mL) and extracted withEtOAc (3 ¡Á 10 mL). The combined organic layers were dried (Na2SO4)and filtered. The filtrate was concentrated, and the residue was purified by column chromatography on SiO2 [petroleum ether (bp 60-90C)-EtOAc, 10:1 to 30:1] to give 3ah; Yield: 18.7 mg (48%); tan solid; mp 182.3-183.6 C.

The synthetic route of 2-(2-Iodophenyl)acetonitrile has been constantly updated, and we look forward to future research findings.

Reference:
Article; Jiang, Zeng-Qiang; Miao, Da-Zhuang; Tong, Yao; Pan, Qiang; Li, Xiao-Tong; Hu, Ren-He; Han, Shi-Qing; Synthesis; vol. 47; 13; (2015); p. 1913 – 1921;,
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. 5159-41-1, name is 2-Iodobenzyl alcohol, A new synthetic method of this compound is introduced below., Safety of 2-Iodobenzyl alcohol

General procedure: To a solution of alcohol (1 mmol) in MeCN-H2O (9:1, 3 mL) were successively added TEMPO (7.8 mg,5 mol%), NH4OAc (0.308 g, 4 equiv), and PhI(OAc)2 (0.708g, 2.2 equiv). The suspension was stirred at roomtemperature (progress of the reaction was monitored byTLC) for the reaction time indicated in Table 2. The resultantclear two-phase reaction mixture was concentrated, dilutedwith H2O and Et2O, and the organic layer was dried (Na2SO4), filtered, and evaporated under reduced pressure.The residue was purified by flash column chromatography(PE-Et2O or PE-CH2Cl2) to give 2.

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; Vatele, Jean-Michel; Synlett; vol. 25; 9; (2014); p. 1275 – 1278;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. 75581-11-2, name is 4-Iodo-1-methoxy-2-methylbenzene, This compound has unique chemical properties. The synthetic route is as follows., Safety of 4-Iodo-1-methoxy-2-methylbenzene

General procedure: Similar conditions for performing a Negishi coupling reaction with 15 have previously been described.4 A round bottom flask plus stir bar were dried and flushed with Ar before adding 1-iodo-3-isopropylbenzene (0.404 g, 1.64 mmol; purchased from Combi-Blocks) and anhyd. DMF (3 mL). Reaction was vacuum purged and refilled with Ar (3x) before the addition of Pd2dba3 (50 mg, 0.16 mmol) and P(o-tolyl)3 (75 mg, 0.082 mmol). A suspension containing organozinc 15 (5.5 mL, 2.5 mmol, 1.5 equiv.) was carefully added via syringe so as to avoid aspirating unreacted zinc metal. Reaction was stirred overnight at room temperature under Ar. Reaction mixture was quenched with sat. NH4Cl and extracted with EtOAc (2 x 15 mL). Organic phase was washed with brine, dried over MgSO4, filtered, concentrated and dried under high vacuum. Crude was purified by flash chromatography eluting with 5% EtOAc/Hexanes resulting in a beige solid: 277 mg (42%).

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 75581-11-2.

Reference:
Article; Augustyn, Evan; Finke, Karissa; Zur, Arik A.; Hansen, Logan; Heeren, Nathan; Chien, Huan-Chieh; Lin, Lawrence; Giacomini, Kathleen M.; Colas, Claire; Schlessinger, Avner; Thomas, Allen A.; Bioorganic and Medicinal Chemistry Letters; vol. 26; 11; (2016); p. 2616 – 2621;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. 16932-44-8, name is 2-Iodo-1,3-dimethoxybenzene belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. COA of Formula: C8H9IO2

General procedure: An oven dried pressure tube was charged with haloarenes (0.5 mmol), copper(II) triflate (45 mg, 0.125 mmol), KNO2 (128 mg, 1.5 mmol) and anhydrous DMSO (0.6 mL) under nitrogen atmosphere. The tube was sealed with a teflon screw cap having mininert valve and nitrogen is purged through it for 5 min. It is stirred at room temperature for 10 min and then the temperature was gradually increased to 130 oC and is maintained at the same for 48 h. The reaction mixture was then cooled to room temperature, washed with excess ice cold water and extracted with ethyl acetate (3 x 10 mL). The combined organic extracts were dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to give the crude product which was purified by column chromatography using silica gel (Table 2, entries 1-18) or basic alumina (Table 2, entries 19-23) and a mixture of ethyl acetate and hexane as the eluent to afford the desired products in good yields.

The synthetic route of 16932-44-8 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Amal Joseph; Priyadarshini; Lakshmi Kantam; Maheswaran; Tetrahedron Letters; vol. 53; 12; (2012); p. 1511 – 1513;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Application of 877264-43-2,Some common heterocyclic compound, 877264-43-2, name is (5-Fluoro-2-iodophenyl)methanol, molecular formula is C7H6FIO, 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.

Step C: The product from Step B (6.2 g, 25.0 mmol) was dissolved in chloroform (170 mL) and the solution was added to a suspension of manganese (IV) oxide (43.0 g, 675 mmol) in chloroform (150 mL) and the mixture was stirred overnight at 75 C. The reaction mixture was filtered through a pad of diatomaceous earth and concentrated in vacuo to afford the desired product (3.7 g, 60% crude yield) as a yellow solid: 1H NMR (500 MHz, CDCl3) delta 10.01 (d, J=3.0 Hz, 1H), 7.92 (dd, J=8.7, 5.0 Hz, 1H), 7.60 (dd, J=8.6, 3.1 Hz, 1H), 7.10-7.06 (m, 1H).

The synthetic route of 877264-43-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Molino, Bruce F.; Liu, Shuang; Guzzo, Peter R.; Beck, James P.; US2006/52378; (2006); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

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. 82998-57-0, name is 3-Iodo-4-methylbenzoic acid, This compound has unique chemical properties. The synthetic route is as follows., Application In Synthesis of 3-Iodo-4-methylbenzoic acid

INTERMEDIATE 8; [2-methyl-5-(5-methyl-1 ,3,4-oxadiaz -2-yl)phenyl]boronic acid; a) Methyl 3-iodo-4-methylbenzoate; A suspension of 3-iodo-4-methylbenzoic acid (15.00 g, 60.00 mmol) and a 4M solution of hydrochloric acid in dioxane (20.00 mL, 80.0 mmol) in methanol (20 mL) was heated in a sealed tube at 80 C with stirring. After stirring for 3 days, the mixture was cooled and ethyl acetate and saturated aqueous potassium carbonate solution were added. The organic layer was washed with brine, dried (MgS04) and evaporated in vacuo to give the title compound (15.00 g, 95%).LR S (m/z): 277 (M+1)+.

According to the analysis of related databases, 82998-57-0, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ALMIRALL, S.A.; AIGUADE BOSCH, Jose; CARRANCO MORUNO, Ines; WO2011/57757; (2011); A1;,
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com