Month: June 2021

Synthetic Route of 210532-25-5, These common heterocyclic compound, 210532-25-5, name is 3,5-Difluorobenzene-1-sulfonyl chloride, 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.

A mixture of 1 (800 mg, 2.14 mmol) and dibutyltin dichloride (65 mg,0.21 mmol) in THF (13 mL) was stirred for 10 min at rt before 3,5-difluorobenzenesulfonyl chloride (500 mg, 2.35 mmol) dissolved in THF (2 mL)and 1,1,2,2,6-pentamethylpiperidine (0.77 mL, 4.27 mmol) were added underN2 atmosphere, and the resulting solution was stirred at rt o.n. The reactionwas quenched with sat. aq. NH4Cl followed by evaporation of the solvent; theresidue was diluted with CH2Cl2 and washed with water and brine. The organicphase was dried and evaporated. The obtained residue was dissolved inacetic anhydride (10 mL) and pyridine (10 mL) and stirred at rt o.n. An amorphouswhite solid was obtained after evaporation of the solvents to give crude2b, which was used directly in the following inversion. 1H NMR (CDCl3): delta7.47 (d, J = 8.1, 2H, Ph), 7.39-7.29 (m, 8H, Ph), 7.06 (d, J = 8.1, 2H, Ph), 5.38 (s, 1H, CH), 5.22 (t, J = 9.8, 1H, H-2), 4.82 (dd, J = 9.7, 3.6, 1H, H-3),4.61 (d, J = 9.8, 1H, H-1), 4.38 (m, 2H, H-4 and H-6), 4.01 (d, J = 12.5, 1H,H-6), 3.57 (s, 1H, H-5), 2.32 (s, 3H, CH3), 2.01 (s, 3H, Ac). 13C NMR (CDCl3): delta169.0, 137.1, 134.7, 129.7, 129.4, 128.4, 128.3, 126.6, 126.2, 111.1, 101.3, 85.0,80.5, 74.2, 69.5, 69.0, 66.5, 21.4, 20.9. HRMS calcd for [C28H26F2O8S2Na]+,615.0935; found: 615.0939.

Statistics shows that 3,5-Difluorobenzene-1-sulfonyl chloride is playing an increasingly important role. we look forward to future research findings about 210532-25-5.

Reference:
Article; Peterson, Kristoffer; Weymouth-Wilson, Alex; Nilsson, Ulf J.; Journal of Carbohydrate Chemistry; vol. 34; 8; (2015); p. 490 – 499;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Reference of 627-42-9, These common heterocyclic compound, 627-42-9, name is 2-Methoxyethyl chloride, 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.

Example 3 4-(2-Methoxyethoxy)-benzaldehyde 219.8 g of 4-hydroxybenzaldehyde were stirred with 270 g of potassium carbonate and 1134 g of 2-chloroethyl methyl ether in a 3 l autoclave for 12 hours at 150 C. Filtration, washing with 46.1 g of 2-chloroethyl methyl ether and removal by distillation of the excess 2-chloroethyl methyl ether as in Example 1, gave 319.9 g of crude product as red-brown liquid and 819.2 g of 2-chloroethyl methyl ether with a purity of 99.4% (GC).

The synthetic route of 627-42-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Giffels, Guido; Dreisbach, Claus; US2001/14697; (2001); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electric Literature of 220227-21-4, 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. 220227-21-4, name is 2,4,5-Trifluorobenzene-1-sulfonyl chloride belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To a solution of /V-(2,4-dimethoxybenzyl)-1 ,3,4-thiadiazol-2-amine (1.09 g, 4.30 mmol) in tetrahydrofuran (20 mL) was added lithium /)/’s(trimethylsilyl)amide (4.3 mL of a 1 M solution in tetrahydrofuran, 4.3 mmol) at -78 C. The reaction mixture was allowed to stir for 30 minutes at 0 C and a solution of 2,4,5- trifluorobenzenesulfonyl chloride (0.99 g, 4.3 mmol) in tetrahydrofuran (10 mL) was added dropwise at -78 C. After the addition was complete, the cooling bath was removed. The reaction mixture was stirred for 3 h at ambient temperature and saturated aqueous ammonium chloride (10 mL) was added. The resulting mixture was extracted with ethyl acetate (2 x 30 mL). The organic layer was washed with water and brine, dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated in vacuo and the residue was purified by column chromatography eluting with 30% ethyl acetate in hexanes to afford /V-(2,4-dimethoxybenzyl)-2,4,5-trifluoro-/v’-(1 ,3,4- thiadiazol-2-yl)benzenesulfonamide in 57% yield (1.10 g) as a colorless solid: MS (ES+) m/z 446.0 (M + 1).

The synthetic route of 2,4,5-Trifluorobenzene-1-sulfonyl chloride has been constantly updated, and we look forward to future research findings.

Reference:
Patent; XENON PHARMACEUTICALS INC.; SUN, Shaoyi; ZENOVA, Alla, Yurevna; CHAFEEV, Mikhail; JIA, Qi; ZHANG, Zaihui; OBALLA, Renata, Marcella; WO2013/64983; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Related Products of 39226-96-5, 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. 39226-96-5, name is (2-Chloro-3-(trifluoromethyl)phenyl)methanamine, This compound has unique chemical properties. The synthetic route is as follows.

Example 16 N-{[2-Chloro-3-(trifluoromethyl)phenyl]methyl}-3-methyl-1-(6-methyl-2- pyridinyl)-2-oxo-4-imidazolidinecarboxamide (E16) (in a form obtainable or prepared from (4S)-2-oxo-3-{[(phenylmethyl)oxy]carbonyl}-4-imidazolidinecarboxylic acid); A mixture of 3-methyl-1-(6-methyl-2-pyridinyl)-2-oxo-4-imidazolidinecarboxylic acid TFA salt (147 mg, 0.42 mmol), 1-hydroxybenzotriazole hydrate (96 mg, 0.63 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (121 mg, 0.63 mmol) and N-ethyl morpholine (0.27 ml, 2.1 mmol) in dichloromethane (8 ml) was stirred at room temperature for 10 minutes. A solution of {[2-chloro-3- (trifluoromethyl)phenyl]methyl}amine (88 mg, 0.42 mmol) in dichloromethane (2 ml) was added and the reaction stirred at room temperature for 4 hours. The mixture was partitioned between dichloromethane and saturated sodium hydrogen carbonate solution. The organic phase was separated, washed with water and brine, dried and evaporated. The residue was purified by silica gel chromatography eluting with 0- 10% methanol in dichloromethane to give N-{[2-chloro-3- (trifluoromethyl)phenyl]methyl}-3-methyl-1-(6-methyl-2-pyridinyl)-2-oxo-4- imidazolidinecarboxamide (1 10 mg, 61%). LC/MS [M+H]+ = 427, retention time = 2.66 minutes.

The chemical industry reduces the impact on the environment during synthesis (2-Chloro-3-(trifluoromethyl)phenyl)methanamine. I believe this compound will play a more active role in future production and life.

Reference:
Patent; GLAXO GROUP LIMITED; WO2008/119825; (2008); A2;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Related Products of 7149-75-9, 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. 7149-75-9, name is 4-Chloro-3-methylaniline, This compound has unique chemical properties. The synthetic route is as follows.

To a refluxing slurry of disodium carbonate (0.9 g. 0.01 mol) in 10 mL MeOH wasadded simultaneously a solution of 1,5-dichloropentan-3-one (0.93 mL, 0.01 mol) in 5 mL MeOH and a solution of 4-chloro-3-methylaniline (1 g, 0.01 mol) in 5 mL MeOH dropwise over 10 mins. The reaction was allowed to reflux for a further 2.5 h, then allowed to cool and concentrated, poured into water (10 mL), and extracted with DCM (2 x lOmL). The combined organics were dried over MgSO4 and concentrated to yield 1.38 g free flowing orange/brown oil. The crude product was purified using column chromatography (Biotage, 50 g SNAP KP-SIL, 10 -80percent EtOAc in heptane, 10 CV) to yield the title compound as a light yellow free-flowing liquid (890 mg, 86percent purity, 48percent).1H NMR (500 MHz, Chloroform-d) delta 7.22 (d, J = 8.7 Hz, 1 H), 6.83 (d, J = 2.9 Hz, 1H), 6.74 (dd, J = 8.7, 3.0 Hz, lH), 3.56 (t, J = 6.1 Hz, 4H), 2.55 (t, J = 6.1 Hz, 4H), 2.35 (s, 3H). LCMS Method D: rt 1.33 min, 91 percent; m/z 223.95 (MH+)

The chemical industry reduces the impact on the environment during synthesis 4-Chloro-3-methylaniline. I believe this compound will play a more active role in future production and life.

Reference:
Patent; PRESIDENT AND FELLOWS OF HARVARD COLLEGE; EVOTEC INTERNATIONAL GMBH; GAMPE, Christian, M.; KAHNE, Daniel, Evan; KAHNE, Suzanne, Walker; QIAO, Yuan; EAST, Stephen; PARKES, Alastair, L.; SOUTHEY, Michelle; HUNTER, James; WHITTAKER, Mark; ARTHUIS, Martin; (359 pag.)WO2016/191658; (2016); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electric Literature of 210532-25-5, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 210532-25-5 as follows.

1-(ethylsulfonyl)-3-fluorobenzene A stirred mixture of 3-fluorobenzenesulfonyl chloride (0.973 g, 5.00 mmol), sodium bicarbonate (0.84 g, 10.0 mmol), and sodium sulfite (1.16 g, mmol) was heated in water (7 mL) at 95-100 C. for 1 h under nitrogen. The reaction was cooled to ~50 C., treated with (nBu)4NBr (100 mg) and ethyl iodide (2.5 mL) and heated at 70 C. for 18 h. The reaction was cooled, treated with water (10 mL) and extracted with dichloromethane (3*15 mL). The extracts were dried with MgSO4 and concentrated in vacuo. Chromatography on silica gel eluding with an ethyl acetate:hexane gradient of 10:90 to 40/60 gave the title compound as a colorless oil (878 mg). MS (ES) m/z 189.0. Intermediates 2 to 11; 13-14Prepared according to a procedure similar to that described for Intermediate 1, using the appropriate halogenated arylsulfonylchloride and alkylating agent R-LG, and eluting with an appropriate eluent. Intermediate 31,3-difluoro-5-(methylsulfonyl)benzene; MS (EI) m/z 192.

According to the analysis of related databases, 210532-25-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Bernotas, Ronald Charles; Ullrich, John William; Travins, Jeremy Mark; Wrobel, Jay Edward; Unwalla, Rayomand Jal; US2010/273816; (2010); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Reference of 15205-11-5, A common heterocyclic compound, 15205-11-5, name is 2-Chloro-4-fluorobenzylamine, molecular formula is C7H7ClFN, 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.

Example 3 N-[(2-chloro-4-fluorophenyl)methyl]-1-ethyl-5-oxo-prolinamide (E3) Methyl 1-ethyl-5-oxo-prolinate (0.135 g, 0.79 mmol, prepared as described below) was dissolved in methanol (4 ml) and treated with 2M aqueous sodium hydroxide (0.592 ml, 1.18 mmol). The mixture was stirred for 4 hrs at room temperature and then evaporated to give a residue which was then treated with an excess of 1M hydrogen chloride in ether (~5 ml) for 10 minutes. The mixture was evaporated once more and the residue was dissolved in dichloromethane (4 ml) and dimethylformamide (2 ml) and filtered to remove solids. The resulting solution was transferred to a reaction tube and 1-hydroxybenzotriazole (0.117 g, 0.87 mmol), [(2-chloro-4-fluorophenyl)methyl]amine (0.138 g, 0.87 mmol) and N-(3-dimethylaminopropyl)-N’-ethylcarbodiimide hydrochloride (0.167 g, 0.87 mmol) were then added. The mixture was flushed with argon and then stirred at room temperature over the weekend. The mixture was then diluted with dichloromethane and washed sequentially with 2M aqueous hydrogen chloride and saturated aqueous sodium hydrogen carbonate. The organic layer was filtered through a phase separator and then evaporated to give the crude product. The crude material was purified by mass-directed automated HPLC to give pure N-[(2-chloro-4-fluorophenyl)methyl]-1-ethyl-5-oxo-prolinamide (0.086 g) as a white solid. LC/MS [M+H]+=299.1, retention time=2.13 minutes. Enantiomeric excess=100.0%, as determined by chiral chromatography method B, indicative of N-[(2-chloro-4-fluorophenyl)methyl]-1-ethyl-5-oxo-L-prolinamide retention time=8.05 minutes

The synthetic route of 15205-11-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; GLAXO GROUP LIMITED; US2008/9541; (2008); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

These common heterocyclic compound, 89794-02-5, name is 4-Bromo-2-chlorotoluene, 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. Product Details of 89794-02-5

General procedure: 10.0 mmol of the specified boronic ester (I; R1), 30.0 mmol of magnesium turnings and 5.0 mmol of the salt (II) are suspended in a mixture of 3.40 g of anhydrous toluene and 0.73 g of anhydrous tetrahydrofuran in a dry four-neck flask under a nitrogen atmosphere with a mechanical stirrer, thermometer, metal condenser and pressure-equalized dropping funnel, and stirred vigorously for 30 min. The appropriate haloaromatic (III, R4) is added to this solution, at first in undiluted form, until the onset of exothermicity signals the start of the reaction. The remaining total amount of 30.6 mmol of haloaromatic is diluted with 10.0 g of anhydrous toluene and 10.0 g of anhydrous tetrahydrofuran and added dropwise at such a rate that the internal temperature does not exceed 45 C. On completion of addition, the reaction mixture is heated at reflux for 1 h or until the dissolution of the magnesium was complete. The resulting suspension is discharged onto 50 g of ice-water, and the resulting solids are isolated, washed with cold water and dried under reduced pressure. The composition of Examples 77-91 and selected physical properties are summarized in Table 3.

The synthetic route of 4-Bromo-2-chlorotoluene has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Covestro Deutschland AG; ROeLLE, Thomas; BERNETH, Horst; HOeNEL, Dennis; BRUDER, Friedrich-Karl; (34 pag.)US2019/276479; (2019); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

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. 61881-19-4, name is 2,2,2-Trifluoro-N-phenylacetimidoyl chloride, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 2,2,2-Trifluoro-N-phenylacetimidoyl chloride

Compound 4 (0.91 g, 4.09 mmol) was dissolved in 5ml acetone, and then2,2,2-trifluoro-N-phenylethanimidoyl chloride (0.87 g, 4.19 mmol) and potassiumcarbonate (0.58 g, 4.19 mmol) were successively added. After stirring at roomtemperature for about 18 h, the mixture was evaporated under reduced pressure.The residue was purified by column chromatography on silica gel (200-300 mesh) toafford pure 8, yield 87%. TLC (ethyl acetate/petroleum ether 4:1, V:V); 1H NMR (400MHz, CDCl3) delta: 1.31 (m, 3H, CH3), 1.35 (m, 3H, CH3), 3.15 (m, 1H, CH), 3.22 (m, 1H,CH), 3.50 (s, 3H, CH3), 3.59 (s, 3H, CH3), 3.61 (m, 2H, CH2), 3.69 (m, 1H, CH), 3.75(m, 1H, CH), 5.25 (s, 1H, CH); 6.88(m, 1H, CH), 7.14 (s, 1H, CH), 7.33 (m, 1H, CH),7.44 (s, 1H, CH); 7.59 (s, 1H, CH) ; 13C NMR (100 MHz, CDCl3) delta: 15.6, 17.8, 59.2,61.1, 67.8, 70.7, 79.7, 82.0, 96.2, 117.3, 119.5, 120.4, 125.4, 129.2, 129.4,133.9, 143.6; MS (ESI) cal for C18H24F3NO5 [M+Na]+ 414.14988, found [M+Na]+414.15034.

According to the analysis of related databases, 61881-19-4, the application of this compound in the production field has become more and more popular.

Reference:
Article; Zhang, Kai; Liu, Shenglan; Liu, Anjun; Chai, Hongxin; Li, Jiarong; Lamusi; Beilstein Journal of Organic Chemistry; vol. 13; (2017); p. 2603 – 2609;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 1005-56-7, name is O-Phenyl carbonochloridothioate, 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 1005-56-7, Computed Properties of C7H5ClOS

General procedure: 1a (0.996g, 1.5mmol) / 1b (0.204g, 0.30mmol), NaOH (0.18g, 4.5mmol / 0.072g, 1.8mmol) in 20mL Stir in CH2Cl2 for 15 minutes. Join slowly in 5 minutesPhenyl thiochloroformate(0.258 g, 1.5 mmol / 0.103 g, 0.6 mmol).The TLC dot plate tracks the progress of the reaction and stops the reaction after the disappearance of the raw materials.10% HCl was added to the reaction solution to neutralize excess NaOH.After oscillating, the organic phase was separated and the aqueous phase was extracted with CH2Cl2.The organic phase was combined, washed with brine and dried over anhydrous sodium sulfate.After concentrating by evaporation, the crude product was purified and purified by ethylamine (ethyl acetate: petroleum ether = 1:100) to give white solid 2a (0.75 g, yield 71%) and 2b (0.171 g,Yield 75%).

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; Changzhou University; Li Zhengyi; Tong Hongxiao; Chen Yuan; Yin Le; Xiao Tangxin; Sun Xiaoqiang; (9 pag.)CN108727241; (2018); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics