Author: Jessica.F

Application of 830-43-3, These common heterocyclic compound, 830-43-3, name is 4-(Trifluoromethyl)benzenesulfonamide, 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.

General procedure: Pyridine (5 mol) was added to a stirred solution of corresponding amine (1.0 mol) in THF (10 v), after 5 minutes, sulfonyl chloride derivative (1.1 mol) was added, stirred at room temperature under argon atmosphere for 16 h. Then the reaction mixture was diluted with water (50 v), extracted with EtOAc (50 v X 2), evaporated the solvent in vacuo, the crude product was purified by column chromatography to afford 8/9(a-c) and 12/13(a-b) (58-86%) as solids. During thesynthesis of N-(4-(3-((3S,4S)-3,4-Dihydroxypyrrolidin-1-yl)-3-oxopropyl)phenyl)-4-(trifluoromethyl)benzenesulfonamide (13b), isolated 29% of disulphonation product N-(4-(3 N-(4-(3-((3S,4S)-3,4-Dihydroxypyrrolidin-1-yl)-3-oxopropyl)phenyl)-4-(trifluoromethyl)-N-(4-(trifluoromethyl)phenylsulfonyl)benzenesulfonamide (13c) as white solid.

Statistics shows that 4-(Trifluoromethyl)benzenesulfonamide is playing an increasingly important role. we look forward to future research findings about 830-43-3.

Reference:
Article; Kasturi, Sivaprasad; Surarapu, Sujatha; Uppalanchi, Srinivas; Anireddy, Jaya Shree; Dwivedi, Shubham; Anantaraju, Hasitha Shilpa; Perumal, Yogeeswari; Sigalapalli, Dilep Kumar; Babu, Bathini Nagendra; Ethiraj, Krishna S.; Bioorganic and Medicinal Chemistry Letters; vol. 27; 12; (2017); p. 2818 – 2823;,
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Application of 128263-66-1,Some common heterocyclic compound, 128263-66-1, name is N-(4-(Aminomethyl)phenyl)methanesulfonamide hydrochloride, molecular formula is C8H13ClN2O2S, 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 I N-[4-[[2-Hydroxy-3-(3-methylphenoxy)propyl]aminomethyl]phenyl]methanesulfonamide hydrochloride Heat a mixture of N-[4-(aminomethyl)phenyl]methanesulfonamide hydrochloride(15.0 g, 63.4 mmol) and 1,2-epoxy-3-phenoxypropane (10.41 g, 63.4 mmol) in 63.4 mL of 1 N KOH in methanol and 10 mL of water for about 3.5 h. Remove the solvent to afford crystals of the title compound. NMR (DMSO-d6): delta=2.27(s,3), 2.85-3.15(m,2), 3.02 (s,3), 3.93(s,2), 4.14(s,2), 4.23(br s,1), 5.90(br s,1), 6.74(m,3), 7.19(m,1), 7.24(d,2), 7.53(d,2), ca. 9.35 (br s,2) and 9.97(s,1) ppm.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route N-(4-(Aminomethyl)phenyl)methanesulfonamide hydrochloride, its application will become more common.

Reference:
Patent; Schering AG; US5051423; (1991); A;,
Amide – Wikipedia,
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Synthetic Route of 6228-73-5, 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. 6228-73-5, name is Cyclopropanecarboxamide belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To a solution of 207.2 (0.270g, 0.79mmol, l .Oeq) in 1,4-dioxane (3mL) was added cyclopropane carboxamide (O. lOlg, 1.19mmol, 1.5eq), potassium carbonate (0.27g, 1.98mmol, 2.5eq). The reaction mixture was degassed for 10 min. under argon atmosphere, then tris(dibenzylideneacetone)dipalladium(0) (0.072g, 0.079mmol, O. leq) and 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene (0.091g, 0.158mmol, 0.2eq) were added, again degassed for 5 min. The reaction was stirred at 130C for 2h under microwave irradiation. After completion of reaction, reaction mixture was cooled to room temperature, transferred in water and product was extracted with ethyl acetate. Organic layer was combined, washed with brine solution, dried over sodium sulphate and concentrated under reduced pressure to obtain crude material. This was further purified by column chromatography using 2% methanol in dichloromethane as eluant to obtain pure 207.3 (0.250g, 81.03%). MS(ES): m/z 390.25 [M+H]+

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

Reference:
Patent; NIMBUS LAKSHMI, INC.; GREENWOOD, Jeremy Robert; HARRIMAN, Geraldine C.; LEIT DE MORADEI, Silvana Marcel; MASSE, Craig E.; MCLEAN, Thomas H.; MONDAL, Sayan; (401 pag.)WO2018/71794; (2018); A1;,
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Synthetic Route of 630-22-8,Some common heterocyclic compound, 630-22-8, name is 2,2-Dimethylpropanethioamide, molecular formula is C5H11NS, 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.

To a solution of 2-propen-1 -yl {3-[(2-chloro-4-pyrimidinyl)acetyl]-2- fluorophenyl}carbamate (30 g, 85.9 mmol) in DMA (300 ml_), NBS (15.3 g, 85.9 mmol) was added. The reaction mixture was stirred at room temperature for 1 h. Then 2,2-dimethylpropanethioamide (1 1 .0 g, 94.5 mmol) was added at 0 C. The mixture was stirred at room temperature for 2 h. The mixture was poured into water and extracted with EtOAc (200 ml_ x 3). The combined organic layers were washed with water and brine successively, dried over Na2SO , filtered and concentrated under reduced pressure to give the crude product, which was purified by column chromatography on silica gel(DCM etroleum ether 2:1 ) to afford the title compound. 1 1 g (35.4 % yield) 1 H NMR (400 MHz, CDCI3) delta ppm 8.29 (d, J=5.27 Hz, 1 H), 8.12-8.19 (m, 1 H), 7.12-7.25 (m, 2H), 6.80-6.88 (m, 2H), 5.85-5.98 (m, 1 H), 5.20-5.37 (m, 2H), 4.61 -4.67 (m, 2H). MS (ES+): 447 [M+H]+ .

The synthetic route of 630-22-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; GLAXOSMITHKLINE LLC; ADAMS, Jerry, Leroy; FAITG, Thomas; KASPAREC, Jiri; PENG, Xin; RALPH, Jeffrey; RHEAULT, Tara Renae; WATERSON, Alex Gregory; WO2011/59610; (2011); A1;,
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402-46-0, name is 4-Fluorobenzenesulfonamide, belongs to amides-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. Formula: C6H6FNO2S

Synthesis Example 6 Synthesis of N-(4-fluorophenylsulfonyl)-2-chloro-6-methoxyisonicotinamide (Compound No. 38) 1.75 g (0.01 mol) of 4-fluorobenzenesulfonamide were dissolved in 30 ml of pyridine, and added dropwise by 2.06 g (0.01 mol) of 2-chloro-6-methoxyisonicotinoyl chloride at 0 C. to 5 C., followed by agitation for 2 hrs. at room temperature. After acidified by adding aqueous hydrochloric acid, the precipitate was extracted by ethyl acetate. The organic layer obtained was dried and them concentrated to precipitate crude crystals, which were recrystallized by n-hexane/ethylacetate to 2.1 g (yield: 61.0%) of N-(4-fluorophenylsulfonyl)-2-chloro-6-methoxy isonicotinamide as white crystal.

The synthetic route of 402-46-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Nippon Kayaku Kabushiki Kaisha; US4690934; (1987); A;,
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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. 195986-74-4, name is 7-Bromo-3,4-dihydro-1H-benzo[e][1,4]diazepine-2,5-dione, A new synthetic method of this compound is introduced below., Formula: C9H7BrN2O2

7-bromo-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione (11.8 g, 46.2 mmol) was transferred to a round bottom flask. THF (0.57M) was added to the flask to make a slurry. Lithium aluminum hydride in 1M solution of THF (138.8 mmol) was added dropwise. When the addition was completed, the reaction mixture was heated to 63 C. After 19 hours, the reaction mixture was cooled to room temperature and then to 0 C. Water (3 mL) was added to the cooled reaction mixture, and the reaction mixture was stirred for 1 hour. After the 1 hour, 9 mL of 15% NaOH was added and the reaction mixture was stirred for another hour. Water was then added and the resulting precipitate was filtered off. The precipitate was then washed with ethyl acetate several times. The solvent was removed from the filtrate and the filtrate was transferred to a separatory funnel with ethyl acetate. The filtrate was extracted with ethyl acetate (3¡Á). The combined organic extracts were washed with brine (1¡Á), dried with magnesium sulfate, filtered and concentrated to give a yellow solid. Further purification (1% TEA/Ethyl acetate to start, then switched to 20% ammonia (2M solution in methanol)/ethyl acetate, then 100% methylene chloride) yielded the desired product. [0179] 1H NMR (CDCl3, 400 MHz): delta7.2(s,1H); 7.1 (dd, J=4, 8 Hz, 1H); 6.6(d, J=8 Hz, 1H); 3.8 (s, 2H); 3.0 (dt, J=8 Hz, 4H). [0180] Mass Spec: Calculated: 227.10; Found: 226.96 [M+H]+

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; Wyeth; US2004/9970; (2004); A1;,
Amide – Wikipedia,
Amide – 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. 758-96-3, name is N,N-Dimethylpropionamide, A new synthetic method of this compound is introduced below., Recommanded Product: 758-96-3

General procedure: A 50 mL Schlenk tube equipped with a stirrer bar was charged with KI (16.6 mg, 0.1 mmol), benzotriazole (59.5 mg, 0.5 mmol), DMA (2 mL), and K2S2O8 (270 mg, 1 mmol) under air. The mixture was then stirred at 80 C for 6 h (TLC monitoring), poured into H2O (20 mL), and extracted with EtOAc (3 ¡Á). Then the organic phase was evaporated under vacuum, and the crude product was purified by column chromatography [silica gel, PE-EtOAc (10:1 to 2:1)] to give a colorless oil; yield: 98 mg (96%);

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; Zhu, Zheng; Wang, Yufeng; Yang, Mingmeng; Huang, Ling; Gong, Jiuhan; Guo, Shengmei; Cai, Hu; Synlett; vol. 27; 19; (2016); p. 2705 – 2708;,
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25625-57-4, name is 2-Bromo-N-(3-(trifluoromethyl)phenyl)acetamide, belongs to amides-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. Application In Synthesis of 2-Bromo-N-(3-(trifluoromethyl)phenyl)acetamide

Example 10a Chiral isomer 12-{3-[4-(4-methyl-1 H-imidazol-1 -yl)phenyl]-2-oxo-7-oxa-1 ,4-diazaspiro[4.5]dec-3-en-1 -yl}-N-[3-(trifluoromethyl)phenyl]acetamide hydrochloride 3-[4-(4-Methyl-1 H-imidazol-1 -yl)phenyl]-7-oxa-1 ,4-diazaspiro[4.5]dec-3-en-2-one (D31 a), isomer 1 (94mg) in DMF (6ml) was cooled to ice bath temp and treated with sodium hydride 60% in oil (13mg) under an atmosphere of argon. The mixture was stirred for 20 minutes when 2-bromo-N-[3-(trifluoromethyl)phenyl]acetamide (85mg) in DMF (2.5ml) was added over 1.5 hours by syringe pump. The mixture was then allowed to warm to room temp overnight. The solvent was partially removed and the residue was purified by low pH MDAP. The fractions were loaded onto SCX and the free base was eluted with 2M methanolic ammonia. The solvent was removed and the residue was dissolved in DCM, treated with HCI-Et2O, solvent removed and a white solid was obtained from ether (78mg).1H NMR (DMSO) delta: 1.75 (2H, m), 2.05-2.35 (obs, m), 2.45 (3H, s), 3.4-3.6 (obs, m), 3.9 (2H, m), 4.98 (2H, m), 7.45 (1 H, m), 7.58 (1 H, m), 7.75 (1 H, m), 7.98 (2H, m), 8.12 (2H, m), 8.58 (2H, m), 9.63 (1 H, s), 10.74 (1 H, s). 19F NMR (DMSO) delta: 61.4 Mass Spectrum (LC/MS): Found 512 (MH+). Ret. time 1.63 min.Example 10b Chiral isomer 2 2-{3-[4-(4-methyl-1 H-imidazol-1 -yl)phenyl]-2-oxo-7-oxa-1 ,4-diazaspiro[4.5]dec-3-en- 1-yl}-N-[3-(trifluoromethyl)phenyl]acetamide-‘J 3-[4-(4-Methyl-1 H-imidazol-1 -yl)phenyl]-7-oxa-1 ,4-diazaspiro[4.5]dec-3-en-2-one (D31 b), isomer 2 (94mg) in DMF (6ml) was cooled to ice bath temp and treated with sodium hydride 60% in oil (12mg) under an atmosphere of argon. The mixture was stirred for 20 minutes when 2-bromo-N-[3-(trifluoromethyl)phenyl]acetamide (85mg) in DMF (2.5ml) was added over 1.5 hours by syringe pump. The mixture was then allowed to warm to room temp overnight. The mixture was poured into water and extracted with dichloromethane. The organic layer was washed with brine and then dried with hydromatrix and the solvent was removed to give the title compound (104mg). 1H NMR (CDCI3) delta: 1.7 (obs, m), 2.0 (2H, m), 2.15-2.4 (2H, m), 3.31 (3H, m), 3.71 (1 H, m), 3.85 (2H, m), 4.05 (1 H, m), 4.45 (2H, m), 7.10 (1 H, s), 7.3-7.5 (4H, m), 7.68 (1 H, m), 7.84 (1 H, m), 7.94 (1 H, m), 8.60 (2H, m), 9.09 (1 H, s). 19F NMR (DMSO) delta: 62.7 Mass Spectrum (LC/MS): Found 512 (MH+). Ret. time 1.62 min.

The synthetic route of 25625-57-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; GLAXO GROUP LIMITED; WO2009/34061; (2009); A1;,
Amide – Wikipedia,
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Application of 14658-93-6, 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 14658-93-6 as follows.

General procedure: A solution of 0.04 g (0.11 mmol) of methyl 2-Z-(C-(bromomethyl)-N-tetrahydropyran-2-yloxy-carbonimidoyl)pyridine-4-carboxylate (Intermediate 12) in 0.5 mL of dry THE was added drop wise at 0C and under nitrogen atmosphere to a suspension of 0.024 g (0.13 mmol) of tert-butyl N-(2-hydroxyethyl)-N-methyl-carbamate and 0.0054 g (0.13 mmol) of NaH (60% mineral oil) in 0.5 mL of dry THE. Once the addition was complete, the reaction mixture was quenched with 5% citric acid and extracted with DCM and DCM/MeOH90:10. The combined organic layers were dried, concentrated and the crude product was purified by flash chromatography (eluent DCM:MeOH 97:3) to afford 0.022 g (27%) of 2- [(Z)-C-[2-(tert-butoxycarbonyl (methyl )am ino)ethoxymethyl]-N-tetrahydropyran-2-yloxy- carbonimidoyl]pyridine-4-carboxylic acid (Intermediate 19). MS (ESI): mlz: 436 [M-H].

According to the analysis of related databases, 14658-93-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; IEO – ISTITUTO EUROPEO DI ONCOLOGIA S.R.L.; VARASI, Mario; VILLA, Manuela; TRIFIRO’, Paolo; FANCELLI, Daniele; MERCURIO, Ciro; VIANELLO, Paola; SARTORI, Luca; (202 pag.)WO2017/198785; (2017); A1;,
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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. 24036-52-0, name is 6-Bromo-2H-1,4-benzoxazin-3(4H)-one, This compound has unique chemical properties. The synthetic route is as follows., category: amides-buliding-blocks

To a scintillation vial charged with the 6-bromo-4H-benzo[1,4]oxazin-3-one, Pd2(dba)3 (2.5 % substrate), 2-(dicyclohexylphosphino)-2′-(N,N-dimethylamino)biphenyl (6% substrate). The vial is purged under a positive flow of nitrogen and 1,4-dioxane, the amine and lithium hexamethyldisylazide (1 equivalent substrate) was added via syringe. The reaction is stirred for overnight at 90C under an atmosphere of nitrogen. Upon cooling the reaction is concentrated onto celiteunder reduced pressure and purified via flash column chromatography or by preparative LCMS.

According to the analysis of related databases, 24036-52-0, the application of this compound in the production field has become more and more popular.

Reference:
Patent; IRM LLC; WO2006/15259; (2006); A2;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics