Category: thiazolidine

The thiazolidine compound, name is 1,1-Dioxo-isothiazolidine,cas is 5908-62-3, mainly used in chemical industry, its synthesis route is as follows.

5908-62-3, A flask was charged under nitrogen with 3-bromo-5-iodo-benzoic acid tert-butyl ester D8b (1 g, 2.6 mmol, 1 equiv), Cs2CO3 (1.26 g, 3.9 mmol, 1.5 equiv), tris (DIBENZYLIDENEACETONE) DIPALLADIUM (0) (12 mg, 0.013 mmol, 0.005 equiv), Xantphos (22 mg, 0.038 mmol, 0.015 equiv) and toluene (20 ML). ISOTHIAZOLIDINE 1,1-dioxide (D22a) (350 mg, 2.9 mmol, 1.1 equiv) was then added and the resulting mixture was stirred at 100C for 16 h then cooled to room temperature and diluted with AcOEt. The organic phase was washed with saturated aqueous NAHC03 solution, dried over MGS04 and concentrated in vacuo. The residue was triturated with Et20 to give 3-BROMO-5-(1, 1-DIOXO-116-ISOTHIAZOLIDIN-2-YL)-BENZOIC acid tert-butyl ester (D17) (350 mg 38%) as a white solid.

As the rapid development of chemical substances, we look forward to future research findings about 5908-62-3

Reference£º
Patent; GLAXO GROUP LIMITED; WO2004/50619; (2004); A1;,
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The thiazolidine compound, name is 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid,cas is 7025-19-6, mainly used in chemical industry, its synthesis route is as follows.

7025-19-6, General procedure: To a mixture of chloroisatin (1.0 mmol), 3-(4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (205 mg, 1.0 mmol) and NaOAc (820 mg, 10.0 mmol) was added acetic acid (5.0 mL). The reaction was allowed to stir at 105 C for 30 min – 12 h, then cooled to room temperature. To the reaction was added water (15 mL). The resulting mixture was sonicated to give an orange -red slurry. After filtration, the solid was washed with water (75 mL) and dried under high vacuum to yield the corresponding product as a red fine powder (71-92%):

As the rapid development of chemical substances, we look forward to future research findings about 7025-19-6

Reference£º
Patent; MELNICK, Ari; CERCHIETTI, Leandro, Carlos, A.; CARDENAS, Mariano, G.; XUE, Fengtian; MACKERELL, Alexander, D.; WO2014/204859; (2014); A2;,
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The thiazolidine compound, name is 1,1-Dioxo-isothiazolidine,cas is 5908-62-3, mainly used in chemical industry, its synthesis route is as follows.

5908-62-3, To 2-choro-5-nitro-3-trifluoromethypyridine (056 g, 2.48 mmo) and isothiazoHdine 1,1- dioxide (060 g, 496 mmo) in 1,4-dioxane (12 m) were added Cs2003 (0.81 g, 2.48 mmo) and argon was bubbed though the mixture for 10 mm. Then Xantphos (287 mg, 0,50 mrnoD and Pd2(dba)3 (114 mg, 0.124 mmoD were added. The reaction mixture was stirred for 40 mm at 140C in a microwave oven. The mixture was fi?tered through a pad of C&ite and the sovent was evaporated. The crude product was purified by flash co?umn chromatography on sihca ge (cyciohexane/AcOEt 100/0 to 50/50) to afford 2-(5- nitro-3-(trifluoromethy)pyridmn-2-y)isothiazoidine 1,1-dioxide. M/z = 312 [M+H]+, Rt = 0.87 mm (U PLC Method 32).

As the rapid development of chemical substances, we look forward to future research findings about 5908-62-3

Reference£º
Patent; NOVARTIS AG; PISSOT SOLDERMANN, Carole; QUANCARD, Jean; SCHLAPBACH, Achim; SIMIC, Oliver; TINTELNOT-BLOMLEY, Marina; ZOLLER, Thomas; (161 pag.)WO2015/181747; (2015); A1;,
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19771-63-2, (R)-2-Oxothiazolidine-4-carboxylic acid is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,19771-63-2

EXAMPLE 18 (4R)-N-(2-Nitrooxypropyl)-2-oxothiazolidine-4-carboxamide (Compound No. 1-31) A procedure similar to that described in Example 1 was repeated, but using 2.0 g of (4R)-2-oxothiazolidine-4-carboxylic acid and 3.0 g of N-(2-nitrooxypropyl)amine nitrate, to obtain 24 mg of the title compound as pale yellow crystals, melting at 70-72 C. (after recrystallization from ethanol).

As the paragraph descriping shows that 19771-63-2 is playing an increasingly important role.

Reference£º
Patent; Sankyo Company, Limited; US5298516; (1994); A;,
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26364-65-8, 2-Cyanoimino-1,3-thiazolidine is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

In a dry 50 mL single-mouth flask, 10 mmol of 2-cyanoimino-1,3-thiazolidine and 5 mL of acetone were added.In an ice bath, 0.32 mL of a 50% aqueous solution of NaOH was added, and the temperature was controlled at 0C to 5C.Add dropwise a solution of 5-(2,4-difluorophenyl)-2-furanoyl chloride in acetone to control the rate ofThe temperature was kept at 0C-5C; after the addition was completed, the reaction was performed at 0C-5C for 1-2 hours and TLC test.After the reaction is completed, a 4mol/L hydrochloric acid solution is added to adjust the pH to neutrality.Dichloromethane extraction was added and the dichloromethane layer was successively saturated with sodium bicarbonate,Saturated brine and water were washed three times. The dichloromethane layer was dried over anhydrous magnesium sulfate and filtered.The compound was isolated using a silica gel column (eluent: a 2:1 volume ratio of petroleum ether to ethyl acetate).Yield 75%

26364-65-8, 26364-65-8 2-Cyanoimino-1,3-thiazolidine 3700797, athiazolidine compound, is more and more widely used in various fields.

Reference£º
Patent; South China Agricultural University; Cui Zining; Xiang Xuwen; Tao Hui; Jiang Shan; Zhang Lianhui; (19 pag.)CN107674070; (2018); A;,
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5908-62-3, 1,1-Dioxo-isothiazolidine is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,5908-62-3

General procedure: Example 2 3-Ethyl-5-methyl-6-[(2-oxoazetidin-1-yl)methyl]-1-(3,3,3-trifluoropropyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione To a solution of 85 mg (1.19 mmol) of 2-azetidinone in 1.6 ml of THF were added 48 mg (1.19 mmol) of sodium hydride (60% suspension in mineral oil), then the mixture was heated to 60 C. for 60 min and subsequently cooled back down to RT (“Solution 1”). To a solution of 80 mg (0.238 mmol) of the compound from Ex. 140A in 1.6 ml of dichloromethane in another reaction vessel were added, at 0 C., 83 mul (0.476 mmol) of N,N-diisopropylethylamine and 18 mul (0.250 mmol) of thionyl chloride. After 20 min at 0 C., Solution 1 was added and the cooling bath was removed. The reaction mixture was stirred at RT for about 18 h. All the volatile constituents were then removed on a rotary evaporator. The remaining residue was separated into its components by means of preparative HPLC (Method 10). After concentration of the product fractions and drying under high vacuum, 5 mg (5% of theory, 92% purity) of the title compound were obtained. 1H-NMR (400 MHz, DMSO-d6, delta/ppm): 4.26 (s, 2H), 4.12 (t, 2H), 3.90 (q, 2H), 3.29-3.21 (m, 2H), 3.17 (t, 2H), 2.86-2.69 (m, 2H), 2.41 (s, 3H), 2.29-2.16 (m, 2H), 1.12 (t, 3H). LC/MS (Method 1, ESIpos): Rt=0.96 min, m/z=440 [M+H]+.

5908-62-3 1,1-Dioxo-isothiazolidine 642157, athiazolidine compound, is more and more widely used in various fields.

Reference£º
Patent; BAYER PHARMA AKTIENGESELLSCHAFT; HAeRTER, Michael; KOSEMUND, Dirk; DELBECK, Martina; KALTHOF, Bernd; WASNAIRE, Pierre; SUessMEIER, Frank; LUSTIG, Klemens; (369 pag.)US2018/65981; (2018); A1;,
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.7025-19-6,3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid,as a common compound, the synthetic route is as follows.,7025-19-6

General procedure: To a mixture of 5-chloroisatin (182 mg, 1.0 mmol) and N-carboxyethylrhodanine (205 mg, 1.0 mmol) was added DMSO-d6 (3.0 mL). The reaction was followed by proton NMR until the disappearance of the starting material.

As the paragraph descriping shows that 7025-19-6 is playing an increasingly important role.

Reference£º
Article; Xue, Fengtian; MacKerell Jr., Alexander D.; Heinzl, Geoffrey; Hom, Kellie; Tetrahedron Letters; vol. 54; 13; (2013); p. 1700 – 1703;,
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1438-16-0,3-Aminorhodanine,as a common compound, the synthetic route is as follows.,1438-16-0

General procedure: Compound 2 (100 mg, 0.5 mmol) and 2,4-thiazolidinedione or 2-thione-4-thiazolidinone derivatives (0.5 mmol) were dissolved in ethanol (5 mL). Piperidine (100 muL) was added as a catalyst and the reaction mixture was stirred at room temperature for 5 h. Then, the reaction mixture was poured into iced water to yield a precipitate. The product was filtered, washed with distilled water and recrystallized from the indicated solvents to yield compounds 3a-f.

1438-16-0 3-Aminorhodanine 74033, athiazolidine compound, is more and more widely used in various fields.

Reference£º
Article; Anh, Hoang Le Tuan; Cuc, Nguyen Thi; Tai, Bui Huu; Yen, Pham Hai; Nhiem, Nguyen Xuan; Thao, Do Thi; Nam, Nguyen Hoai; Van Minh, Chau; Van Kiem, Phan; Kim, Young Ho; Molecules; vol. 20; 1; (2015); p. 1151 – 1160;,
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26364-65-8, 2-Cyanoimino-1,3-thiazolidine is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

11.8 g (0.05 mL) of Compound X, 150 mL of DMF, 8.28 g (0.05 mL) of K2CO3 and 6.35 g of thiazolidine were added to a 150 mL three-necked flask, and reacted at 80 C for 4 h.Compound X disappeared by TLC. Filter by suction, take the filtrate, add 300mL after coolingWater, a large amount of solids are precipitated, stirred for a while, and then filtered.The filter cake is the product compound I. After drying, 14.15 g of a white solid was obtained, yield 86%., 26364-65-8

The synthetic route of 26364-65-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Qingdao University of Science and Technology; Xu Liangzhong; Zhang Mingming; Sun Jianxin; Wang Minghui; (6 pag.)CN108440519; (2018); A;,
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.26364-65-8,2-Cyanoimino-1,3-thiazolidine,as a common compound, the synthetic route is as follows.,26364-65-8

Under nitrogen protection, add 25g (0.197mol) HRB-1365-2 to the three-necked bottle.(2-cyanoimino-1,3-thiazolidine molecular formula: C4H5N3S) compound, adding 300 mL of methanol,With stirring, 23 g of triethylamine was added, and 26 g (0.230 mol) was added.Compound HRB-1365-1 (Cysteamine molecular formula:C2H7NS), stir the reaction at room temperature for four hours,After LC-MS was monitored, the methanol was distilled off under reduced pressure and the solid was filtered.The solid distilled water was washed with 50 ml, and dried to obtain a white solid HRB-1365 (amino thiol thiazoline molecular formula: C6H9N3S2) 16 g,

As the paragraph descriping shows that 26364-65-8 is playing an increasingly important role.

Reference£º
Patent; Yang Wenmao; (12 pag.)CN103387550; (2016); B;,
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