Heterocyclic Building Blocks-Thiazolidine

26364-65-8, A balanced equation for a chemical reaction indicates what is reacting and what is produced, but it reveals nothing about how the reaction actually takes place. The reaction mechanism is the process, or pathway, by which a reaction occurs.26364-65-8, name is 2-Cyanoimino-1,3-thiazolidine. An updated downstream synthesis route of 26364-65-8 as follows.

General procedure: Under N2 atmosphere, NaH (120 mg, 60% dispersion in mineral oil, 3 mmol)was added to a solution of thiazolidine-2-thione 2 (2.5 mmol) in 5 mL of THF and the resulting solution was cooled to 78C by a dry-ice-acetone bath. Propionyl chloride(255 mg, 2.5 mmol, 480 muL) was then dropped in. After removal of the solvent in vacuo,the residue was purified by column chromatography with a mixture of petroleum ether(60-90C)/EtOAc (5:1, v/v) as eluent., 185137-29-5

In every case, we must determine the overall rate law from experimental data and deduce the mechanism from the rate law (and sometimes from other data). you can also browse my other articles about (S)-4-Phenylthiazolidine-2-thione if you are interested.

Reference£º
Article; Chen, Ning; Du, Hongguang; Liu, Weidong; Wang, Shanshan; Li, Xinyao; Xu, Jiaxi; Phosphorus, Sulfur and Silicon and the Related Elements; vol. 190; 1; (2015); p. 112 – 122;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

An elementary termolecular reaction involves the simultaneous collision of three atoms, molecules, or ions.185137-29-5, name is (S)-4-Phenylthiazolidine-2-thione. Here is a downstream synthesis route of the compound 185137-29-5. 185137-29-5

To a 500 ml three-necked flask, 38.1 g (0.3 mol) of 2-cyanoimino-1,3-thiazolidine, 82.8 g (0.6 mol) of potassium carbonate, 1.9 g (0.006 mol) of tetrabutylammonium bromide, and Water 220 g followed by the slow dropwise addition of 57.6 g (0.36 mol) of 2-chloro-5-chloromethylpyridine. The duration of the slow addition was 1.5 hours; the reaction was stirred at 60C for 2.5 hours.The reaction was completely detected, stirred and cooled to precipitate a large amount of solids, suction filtration, and cake was taken to obtain 68.8 g of thiacloprid with a purity of 96.5% and a yield of 88.2%; wherein the filtrate obtained by suction filtration (including water and catalyst) was obtained. Tetrabutylammonium bromide) is applied to the next batch of reactions (implementation)Example 6).

Thank you very much for taking the time to read this article. If you are also interested in other aspects of 2-Cyanoimino-1,3-thiazolidine, you can also browse my other articles.

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Patent; Shanghai Sheng Nong Biochemical Goods Co., Ltd.; Ye Zhenjun; Geng Li; Fang Yan; Han Haiping; (6 pag.)CN107629045; (2018); A;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

26364-65-8, Rate laws may be derived directly from the chemical equations for elementary reactions. This is not the case, however, for ordinary chemical reactions.26364-65-8, name is 2-Cyanoimino-1,3-thiazolidine, below Introduce a new synthetic route.

1,2-thiazolidine 1,1-dioxide (0.031 g, 0.259 mmol) in dimethylformamide (1 mL) was treated with 60% sodium hydride (0.012g, 0.518 mmol, 0.021 g of a 60%> in oil dispersion). The reaction mixture was stirred for 5 min. To this solution was added Example 41b (0.05 g, 0.086 mmol). The reaction mixture was stirred at room temperature for 2 hours. 2 N NaOH (1 mL) was added and the reaction mixture was heated at 65 C for 2 hours. After cooling to room temperature, the reaction mixture was partitioned between water and ethyl acetate. The aqueous layer was extracted with additional ethyl acetate twice. The combined organic layers were washed with brine, dried over MgSC^, filtered, and concentrated. The residue was purified by preparative HPLC (CI 8, 10-80% acetonitrile in 0.1% TFA water) to afford 0.025 g (64%) of the title compound. 1H NMR (500 MHz, DMSO-d6) delta 2.21-2.25 (m, 2H), 3.15 (t, J=6.97 Hz, 2H), 3.23-3.27 (m, 2H), 3.50 (s, 3H), 4.13 (s, 2H), 6.25-6.26 (m, 1H), 6.88 (d, J=7.63 Hz, 2H), 7.00 (d, J=8.54 Hz, 1H), 7.03-7.05 (m, 1H), 7.25-7.30 (m, 4H), 7.34 (dd, J=8.39, 2.29, 1H), 7.48 (d, J=2.44 Hz, 1H), 12.00 (s, 1 H). MS (ESI+) m/z 450.2 (M+H)+.

This molecular description is the mechanism of the reaction; it describes how individual atoms, ions, or molecules interact to form particular products.If you are interested, you can also browse other articles of 1,1-Dioxo-isothiazolidine, We look forward to the emergence of more reaction modes in the future.

Reference£º
Patent; ABBVIE INC.; ABBOTT LABORATORIES TRADING (SHANGHAI) COMPANY, LTD.; WANG, Le; PRATT, John K.; MCDANIEL, Keith F.; DAI, Yujia; FIDANZE, Steven D.; HASVOLD, Lisa; HOLMS, James H.; KATI, Warren M.; LIU, Dachun; MANTEI, Robert A.; MCCLELLAN, William J; SHEPPARD, George S.; WADA, Carol K.; WO2013/97601; (2013); A1;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

A balanced equation for a chemical reaction indicates what is reacting and what is produced, but it reveals nothing about how the reaction actually takes place. The reaction mechanism is the process, or pathway, by which a reaction occurs.5908-62-3, name is 1,1-Dioxo-isothiazolidine. An updated downstream synthesis route of 5908-62-3 as follows., 5908-62-3

[0050] To a solution of 2-thiazolidinone (4.15 g, 40.18 mmol) in acetonitrile (60 ml) were added potassium carbonate (13.3 g 96.2 mmol), N,N-dimethyl-3-aminopropyl chloride hydrochloride (7.63 g, 48.3 mmol), and 18-crown-6 (catalytic amount). The mixture was refluxed for 18 hours, solvent removed in vacuo, then redissolved in dichloromethane and 1 M potassium chloride (40 ml each). The aqueous phase was isolated and extracted twice with 30 ml portions of dichloromethane. The combined organic fraction was washed with saturated sodium chloride (50 ml), dried over sodium sulfate, filtered, and dried in vacuo. The crude product was purified via silica gel chromatography, using a 10:1 ratio of silica gel A, 200-425 mesh, and eluting with 5% methanol in chloroform, yielding 1.15 g (15%) pure product.

A chemical reaction often occurs in steps, although it may not always be obvious to an observer. Thank you very much for taking the time to read this article. If you are also interested in other aspects of 2682-49-7, you can also browse my other articles.

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Patent; Roberts, Jeannette C.; Wilmore, Britta H.; Cassidy, Pamela B.; Dominick, Pamela K.; Short, Megan D.; US2003/225255; (2003); A1;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

2682-49-7, An elementary termolecular reaction involves the simultaneous collision of three atoms, molecules, or ions.2682-49-7, name is Thiazolidin-2-one. Here is a downstream synthesis route of the compound 2682-49-7

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.

A chemical reaction often occurs in steps, although it may not always be obvious to an observer. Thank you very much for taking the time to read this article. If you are also interested in other aspects of 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid, you can also browse my other articles.

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Article; Xue, Fengtian; MacKerell Jr., Alexander D.; Heinzl, Geoffrey; Hom, Kellie; Tetrahedron Letters; vol. 54; 13; (2013); p. 1700 – 1703;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

5908-62-3, An elementary termolecular reaction involves the simultaneous collision of three atoms, molecules, or ions.5908-62-3, name is 1,1-Dioxo-isothiazolidine. Here is a downstream synthesis route of the compound 5908-62-3

[0831] Preparation Example 231: Preparation of methyl 2-(1,1-dioxo-1lambda6-isothiazolidin-2-yl)pyrimidine-5-carboxylate[0832][0833] Methyl 2-chloropyrimidine-5-carboxylate (173 mg) and isothiazolidine 1,1-dioxide (145 mg) were dissolved inN,N-dimethylformamide (1 mL), and sodium hydride (48mg, 60% in oil) was added under ice-cooling. After stirring atroom temperature for 6 hr, water was added, and the mixture was extracted with ethyl acetate. The solvent was evaporated,diisopropyl ether and ethyl acetate were added, and the precipitated solid was collected by filtration to give thetitle compound (185 mg).MS(ESI)m/z:258(M+H)+.

A chemical reaction often occurs in steps, although it may not always be obvious to an observer. Thank you very much for taking the time to read this article. If you are also interested in other aspects of 1,1-Dioxo-isothiazolidine, you can also browse my other articles.

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Patent; Mitsubishi Tanabe Pharma Corporation; MAEDA, Kazuhiro; ENDOH, Jun-ichi; TARAO, Akiko; TASHIRO, Kaoru; ISHIBUCHI, Seigo; HIKAWA, Hidemasa; EP2565182; (2013); A1;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

5908-62-3, An elementary termolecular reaction involves the simultaneous collision of three atoms, molecules, or ions.5908-62-3, name is 1,1-Dioxo-isothiazolidine. Here is a downstream synthesis route of the compound 5908-62-3

General procedure: To a mixture of aldehyde (1.0 mmol), 3-(4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (205 mg,1.0 mmol) or 3-(2-(1H-tetrazol-5-yl)ethyl)-2-thioxothiazolidin-4-one (229 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 0.5h – 12h, then cooled to room temperature. To the reaction was added water (15mL). The resulting mixture was sonicated to give yellow-orange 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.

A chemical reaction often occurs in steps, although it may not always be obvious to an observer. Thank you very much for taking the time to read this article. If you are also interested in other aspects of 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid, you can also browse my other articles.

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Article; Liang, Dongdong; Robinson, Elizabeth; Hom, Kellie; Yu, Wenbo; Nguyen, Nam; Li, Yue; Zong, Qianshou; Wilks, Angela; Xue, Fengtian; Bioorganic and Medicinal Chemistry Letters; vol. 28; 6; (2018); p. 1024 – 1029;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

A balanced equation for a chemical reaction indicates what is reacting and what is produced, but it reveals nothing about how the reaction actually takes place. The reaction mechanism is the process, or pathway, by which a reaction occurs.7025-19-6, name is 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid. An updated downstream synthesis route of 7025-19-6 as follows., 7025-19-6

7025-19-6, General procedure: To a mixture of aldehyde (1.0 mmol), 3-(4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (205 mg,1.0 mmol) or 3-(2-(1H-tetrazol-5-yl)ethyl)-2-thioxothiazolidin-4-one (229 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 0.5h – 12h, then cooled to room temperature. To the reaction was added water (15mL). The resulting mixture was sonicated to give yellow-orange 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.

There are, however, a few established termolecular elementary reactions. The reaction of nitric oxide with oxygen appears to involve termolecular steps. you can also browse my other articles about 7025-19-6

Reference£º
Article; Liang, Dongdong; Robinson, Elizabeth; Hom, Kellie; Yu, Wenbo; Nguyen, Nam; Li, Yue; Zong, Qianshou; Wilks, Angela; Xue, Fengtian; Bioorganic and Medicinal Chemistry Letters; vol. 28; 6; (2018); p. 1024 – 1029;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

Rate laws may be derived directly from the chemical equations for elementary reactions. This is not the case, however, for ordinary chemical reactions.7025-19-6, name is 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid,below Introduce a new synthetic route., 7025-19-6

General procedure: A solution of 0.002 mol of rhodanine in 5 mL of ethanol and 0.05 mL of 2-aminoethanol were added to a solution of 0.002 mol of aldehyde 1 in 5 mL of ethanol. The mixture was refluxed for 2-3 h and cooled. The precipitate was filtered off and recrystallized.

There are, however, a few established termolecular elementary reactions. The reaction of nitric oxide with oxygen appears to involve termolecular steps. you can also browse my other articles about 7025-19-6

Reference£º
Article; Sinenko; Slivchuk; Pil?o; Raenko; Brovarets; Russian Journal of General Chemistry; vol. 86; 7; (2016); p. 1597 – 1603; Zh. Obshch. Khim.; vol. 86; 7; (2016); p. 1119 – 1125,7;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

A balanced equation for a chemical reaction indicates what is reacting and what is produced, but it reveals nothing about how the reaction actually takes place. The reaction mechanism is the process, or pathway, by which a reaction occurs.7025-19-6, name is 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid. An updated downstream synthesis route of 7025-19-6 as follows., 7025-19-6

Add 0.01 mol to a 250 mL three-necked flask5-chloromethyl-3-(2,6-difluorophenyl)-1,2,4-oxadiazole,0.01mol2-(cyanoimino)thiazolidine,80mL DMF, stirring reaction at 80 C for 4h, TLC detection reaction is completed,Add distilled water, suction filtration, and dryness.Obtained 2.57g of a white solid.The yield was 80%., 26364-65-8

There are, however, a few established termolecular elementary reactions. The reaction of nitric oxide with oxygen appears to involve termolecular steps. you can also browse my other articles about 26364-65-8

Reference£º
Patent; Qingdao University of Science and Technology; Xu Liangzhong; Sun Jianxin; Cui Huanqi; Wang Minghui; (8 pag.)CN109320471; (2019); A;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com