Category: chlorides-buliding-blocks

Electric Literature of 38762-41-3, The chemical industry reduces the impact on the environment during synthesis 38762-41-3, name is 4-Bromo-2-chloroaniline, I believe this compound will play a more active role in future production and life.

4-bromo-2-chloroaniline (5 g, 24.2 mmol), cyclopropylboronic acid (4 g, 48.4 mmol), tricyclohexylphosphine (680 mg, 2.42 mmol), palladium acetate (271 mg, 1.21 mmol)and potassium carbonate (15.4 g, 72.6 mmol)were added to 130 mL of a mixture of toluene and water (V:V=25:1). The mixture was heated to 100C and stirred for 12 hours. The reaction solution was filtered, and the filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography with elution system B to obtain the title compound 24a (2.5 g, yield 61.7%)as a yellow liquid. MS m/z (ESI): 168.1 [M+1]

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, 4-Bromo-2-chloroaniline, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Jiangsu Hengrui Medicine Co. Ltd.; Shanghai Hengrui Pharmaceutical Co. Ltd.; YANG, Fanglong; ZHANG, Ling; WANG, Chunfei; HE, Mingxun; HU, Qiyue; HE, Feng; TAO, Weikang; SUN, Piaoyang; (101 pag.)EP3395809; (2018); A1;,
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Adding a certain compound to certain chemical reactions, such as: 60811-21-4, name is 4-Bromo-2-chloro-1-fluorobenzene, belongs to chlorides-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 60811-21-4, name: 4-Bromo-2-chloro-1-fluorobenzene

To a solution of 4-bromo-2-chloro-1-fluorobenzene (5.00 g, 23.9 mmol) in THF (40 mL) was added lithium diisopropylamide (14.3 mL, 28.6 mmol) drop wise at -78 C. The resultant mixture was stirred at -78 C. for 2 h and then DMF (2.70 mL, 35.8 mmol) was added. The reaction mixture was warmed to room temperature, quenched with aq. NH4Cl, and extracted with EtOAc (3*100 mL). The combined organic layers were concentrated and purified by chromatography (0-10% EtOAc in petroleum ether) to give the title compound. 1H NMR (400 MHz, CDCl3) delta 10.27-10.33 (m, 1H), 7.56 (dd, J=8.6 Hz, 4.3 Hz, 1H), 7.18-7.26 (m, 1H).

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; Merck Sharp & Dohme Corp.; Lapointe, Blair T.; Fuller, Peter H.; Gunaydin, Hakan; Liu, Kun; Molinari, Danielle F.; Pu, Qinglin; Scott, Mark E.; Trotter, B. Wesley; Zhang, Hongjun; US2018/305320; (2018); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

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. 7149-75-9, name is 4-Chloro-3-methylaniline, A new synthetic method of this compound is introduced below., SDS of cas: 7149-75-9

General procedure: Oxo ester 11-15 (10 mmol) was dissolved in THF(50 ml). Solution of LiOH·H2O (15 mmol) in 20 ml of water was addeddropwise at 5-10 C. After stirring at room temperature (3-8 h, TLCcontrol) the mixture was concentrated to approximately quarter of volume,diluted with 50 ml of water and washed with Et2O (3×30 ml). The waterlayer was acidified with 5% H2SO4 to pH 5, the product was extracted withEt2O (3×30 ml), dried over Na2SO4 and concentrated in vacuo. The crudeoxo acids were unstable and were immediately processed further. Primaryamine (0.55 mmol) and oxo acid (0.50 mmol) were dissolved in EtOH(3.0 ml). Isocyanide (0.55 mmol) was added and the reaction mixture wasstirred at 60-65 C for 12 h, then evaporated in vacuo. The residue was dissolvedin EtOAc (3 ml) and treated with 5 ml of saturated aqueous NaHCO3,the organic layer was separated, the aqueous one was extracted with EtOAc(2×2 ml). The combined organic extracts were washed with water (2×5 ml),dried over Na2SO4 and concentrated in vacuo. The residue was treated with10% EtOAc in Et2O (to cause crystallization of the product), or purifiedby chromatography (silica gel, EtOAc-hexane, 1 : 20 1 : 10). For characteristicsof the products, see Online Supplementary Materials.

The synthetic route of 7149-75-9 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Stolyarenko, Vasiliy Yu.; Evdokimov, Anatoliy A.; Shishkin, Vladimir I.; Mendeleev Communications; vol. 23; 4; (2013); p. 233 – 234;,
Chloride – Wikipedia,
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Reference of 60811-21-4, These common heterocyclic compound, 60811-21-4, name is 4-Bromo-2-chloro-1-fluorobenzene, 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.

4-Bromo-2-chloro-1-fluorobenzene (720 mmol, 150.8 g), phenylboronic acid (792 mmol, 96.6 g), 2 M aqueous solution (360 ml) of potassium carbonate (1,080 mmol, 149.3 g), toluene (720 ml), and ethanol (144 ml) were added to a three-necked flask, and the flask was flushed with nitrogen. Tetrakis(triphenylphosphine) palladium(0) (Pd(PPh3)4(21.6 mmol, 21.6 g) was added thereto, and the reaction mixture was heated under stirring at a temperature 80 C. for 8 hours. The reaction mixture was cooled to room temperature, diluted with toluene (1 L), filtered by using celite, and washed twice with water by using a separatory funnel. The reaction mixture was dried by using anhydrous magnesium sulfate, filtered through a silica gel pad, and then, concentrated. The precipitated solid was purified by silica gel column chromatography (developing solvent hexane_toluene=7:3) and recrystallized in methanol to obtain Intermediate 3-1. The amount of Intermediate 3-1 obtained was 101.2 g and the yield of Intermediate 3-1 was 68%.

Statistics shows that 4-Bromo-2-chloro-1-fluorobenzene is playing an increasingly important role. we look forward to future research findings about 60811-21-4.

Reference:
Patent; Samsung Electronics Co., Ltd.; INAYAMA, Satoshi; IRISA, Shiro; KORAI, Keisuke; SAKURAI, Rie; ITO, Mitsunori; NUMATA, Masaki; (265 pag.)US2019/214570; (2019); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Application of 2687-12-9, 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. 2687-12-9, name is Cinnamyl chloride belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: Briefly, a mixture of alkylimidazoles such as 1-methyl-1H-imidazole (MIM), 1-hexyl-1H-imidazole(HIM), 1-octyl-1H-imidazole (OIM), and 1-decyl-1H-imidazole (DIM) (1 mmol), as well as cinnamylchloride (1 mmol) solvent-free were microwaved to 200 MW at 80 C for 5 min (optimumreaction condition). Reaction completion was marked by separation of dense IL. Products suchas 1-methyl-3-cinnamylimidazolium chloride [CMIM]Cl, 1-hexyl-3-cinnamylimidazolium chloride[CHIM]Cl, 1-octyl-3-cinnamylimidazolium chloride [COIM]Cl, and 1-decyl-3-cinnamylimidazolium chloride [CDIM]Cl were isolated by decanting toluene to remove any unreacted starting materialsand solvents. Subsequently, ILs were rinsed with diethyl ether (4 10 mL) separating afterward thislatter layer by decantation. In each case, ILs were finally dried under reduced pressure to get rid of thevolatile organic compounds.

The synthetic route of Cinnamyl chloride has been constantly updated, and we look forward to future research findings.

Reference:
Article; Doria, Oscar Forero; Castro, Ricardo; Gutierrez, Margarita; Valenzuela, Diego Gonzalez; Santos, Leonardo; Ramirez, David; Guzman, Luis; Molecules; vol. 23; 9; (2018);,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 14862-52-3, name is 3,5-Dibromochlorobenzene, belongs to chlorides-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 14862-52-3, Formula: C6H3Br2Cl

General procedure: Typically, TDPP (200 mg, 0.27 mmol), dibromobenzene derivatives 0.11 mmol, anhydrous Cs2CO3(200 mg, 0.61 mmol), PivOH (7.9 mg, 0.08 mmol), Pd2(dba)3 (4.00 mg, 1.5 mol%), tris(o-methoxyphenyl)phosphine (3.08 mg, 3 mol%) were successively added into a Schlenk tube. The tube was purged by three repetitions of vacuum and argon filling. Then, 5 mL anhydrous toluene was added via syringe.The reaction solution was deoxygenated using three freeze-vacuum-thaw cycles, and then rigorouslystirred at 100 C for 24 h under argon atmosphere. Removal of the toluene by rotary evaporatoraorded the crude product, which was then purified by chromatogragh column (CC) on silica gelusing a mixture of CH2Cl2 and hexane as eluent, giving the target molecules Ms1~9.

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:
Article; Liu, Hui; Zhang, Xiao-Feng; Cheng, Jing-Zhao; Zhong, Ai-Guo; Wen, He-Rui; Liu, Shi-Yong; Molecules; vol. 24; 9; (2019);,
Chloride – Wikipedia,
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Synthetic Route of 108-70-3, 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. 108-70-3, name is 1,3,5-Trichlorobenzene belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

n-Butyllithium (2.45 mL, 4.00 mmol) was added to a tetrahydrofuran (10 mL) solution of 1,3,5-trichlorobenzene(724 mg, 4.00 mmol) at -78C in an argon atmosphere, and the mixture was stirred for 45 minutes.[0146] After the addition of dimethylformamide (0.31 mL, 4.00 mmol) at -78C, the mixture was stirred for 45 minutes.[0147] After increasing the temperature of the mixture to -20C, a saturated ammonium chloride solution (5 mL) wasadded to the mixture, followed by stirring for 5 minutes.[0148] The organic layer was extracted with ethyl acetate, dried over sodium sulfate, and filtered, and the solvent wasevaporated.[0149] The residue was purified by silica gel column chromatography (15 g, hexane_acetone=50:1 to 40:1) to obtaina 2,4,6-trichlorobenzaldehyde compound (colorless crystals) (633 mg, 76%).Reference: Synthesis, 2008, 279-285.

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, 1,3,5-Trichlorobenzene, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; National University Corporation University Of Toyama; MORI Hisashi; TOYOOKA Naoki; MIZUGUCHI Mineyuki; OBITA Takayuki; HIRONO Syuichi; GODA Hiroaki; EP2808014; (2014); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Related Products of 1435-48-9,Some common heterocyclic compound, 1435-48-9, name is 2,4-Dichloro-1-fluorobenzene, molecular formula is C6H3Cl2F, 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.

448 mg of milled sodium hydroxide (1.4 eq; 0.0112 mmol), 1.32 g of 1,3-dichloro-4-fluorobenzene (1 eq; 0.008 mol) and 1.57 g of benzophenone hydrazone (1 eq; 0.008 mol) in 6 ml of degassed tert-amyl alcohol are loaded into a 20 ml reactor surmounted by a condenser, a mechanical stirrer and a temperature sensor, and placed in an inert atmosphere.8.95 mg of palladium acetate (0.001 mol %; 0.00004 mol) and 46.3 mg of 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (0.0008 mol) in 2 ml of degassed tert-amyl alcohol are loaded into a 100 ml Schlenk tube equipped with a magnetic stirrer and placed under an inert atmosphere.After stirring for twenty minutes, the catalyst thus prepared is transferred into the reactor.After stirring at 103 C. for 12 hours, the conversion of the 1,3-dichloro-4-fluorobenzene is complete and a benzophenone N-5-chloro-2-fluorophenylhydrazone yield of 85% (accompanied by 15% of benzophenone N-3-chloro-4-fluorophenylhydrazone) is measured by gas chromatography in the presence of an internal standard (hexacosane).

The synthetic route of 1435-48-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Rhodia Chimie; US7557248; (2009); B2;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electric Literature of 2453-46-5, 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. 2453-46-5, name is Chlorocycloheptane belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: A 10 mL Schlenk tube was charged with CoBr2 (6.6 mg, 0.03mmol), 1,3-diisopropyl-1H-benzimidazol-3-ium bromide (L4; 8.5mg, 0.03 mmol), 4-methoxy-N-[(1E)-1-phenylethylidene]aniline(1a, 67.6 mg, 0.30 mmol), 1-chlorooctane (2a, 76.5 muL, 0.45 mmol), and THF (0.69 mL). A 1.92 M solution of t-BuCH2MgBr inTHF (0.31 mL, 0.60 mmol) was added dropwise at 0 C, and themixture was stirred at r.t. for 6 h. The reaction was quenched by theaddition of 3 M aq HCl (1.0 mL), and the mixture was stirred at r.t.for 1 h, then extracted with EtOAc (3 × 10 mL). The organic layerswere combined, dried (MgSO4), and concentrated under reduced pressure. The crude product was purified by chromatography [silicagel, hexane-EtOAc (40:1)].

The synthetic route of Chlorocycloheptane has been constantly updated, and we look forward to future research findings.

Reference:
Article; Gao, Ke; Yamakawa, Takeshi; Yoshikai, Naohiko; Synthesis; vol. 46; 15; (2014); p. 2024 – 2039;,
Chloride – Wikipedia,
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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. 1939-99-7, name is Phenylmethanesulfonyl chloride, This compound has unique chemical properties. The synthetic route is as follows., Application In Synthesis of Phenylmethanesulfonyl chloride

General procedure: Pyridine (73 lL, 0.90 mmol) and DMAP were added to a solution10a (203 mg, 0.7 mmol) in anhydrous DCM (10 mL). Then benzenesulfonylchloride (145 mg, 0.76 mmol) was dissolved in DCMand added dropwise under a nitrogen atmosphere. The reactionmixture was then stirred at room temperature for 1 day.Whereupon, HCl (1 mol/L) was added and the reaction mixturewas extracted with DCM. The organic phases were combined anddried over anhydrous Na2SO4. After removal of volatiles, a residuewas obtained that was then subjected to silica-gel column chromatographicpurification to afford this intermediate 13a (196 mg,63%).

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 1939-99-7.

Reference:
Article; Liu, Peihong; Du, Yongli; Song, Lianhua; Shen, Jingkang; Li, Qunyi; Bioorganic and Medicinal Chemistry; vol. 23; 21; (2015); p. 7079 – 7088;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics