Sep 2021 News You Should Know Something about 3-Bromocinnoline

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Modeling chemical reactions helps engineers virtually understand the chemistry, optimal size and design of the system, and how it interacts with other physics that may come into play. Introduce a common compound, CAS is 78593-33-6, Name is 3-Bromocinnoline, belongs to cinnoline compound. 78593-33-6

Using the same procedure as that described above but from 3-bromocinnoline there was obtained 3-(4-methoxyphenylthio)cinnoline Yield: 74.6% M.P.: 108 C. (isopropanol)

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Reference:
Patent; Sanofi; US4994474; (1991); A;,
Cinnoline – Wikipedia
Cinnoline – an overview | ScienceDirect Topics

Sep 2021 News The origin of a common compound about 4-Aminocinnoline-3-carboxamide

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To a suspension of 4-aminocinnoline-3-carboxamide (3.5 g, 18.60 mmol) in DCM (10 ml) was added POCI3 (43.3 ml, 465 mmol) followed by triethylamine (7.78 ml, 55.8 mmol). The mixture was refluxed for 7 h. The reaction was then allowed to cool to 11 and conc, in vacuo. The crude residuewas then carefully treated with saturated aqueous NaHCO3 at 0 C. A precipitate formed which was collected via vacuum filtration. The filter cake washed with water (-i00 ml,), collected, and driedvacuo to provide the title compound as a grey solid 4-aminocinnoiine-3-carbonitriie.

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Reference:
Patent; PI INDUSTRIES LTD.; SAXENA, Rohit; PANMAND, Deepak Shankar; JENA, Lalit Kumar; SRIVASTAVA, Khushboo; RAJU, Jella Rama; MANJUNATHA, Sulur G; SAMANTA, Jatin; GARG, Ruchi; AUTKAR, Santosh Shridhar; VENKATESHA, Hagalavadi M; GADAKH, Ramdas Balu; KLAUSENER, Alexander G. M.; POSCHARNY, Konstantin; (219 pag.)WO2018/116072; (2018); A1;,
Cinnoline – Wikipedia
Cinnoline – an overview | ScienceDirect Topics

Sep 2021 News The origin of a common compound about Cinnoline-4-carboxylic acid

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10764] To a stirred solution of N1-cyclopropyl-5-fluo- robenzene-1,2-diamine mt-i (500 mg, 3.01 mmol) in DMF (5 mE) under an inert atmosphere was added cinnoline-4- carboxylic acid (524 mg, 3.01 mmol), HATU (1.71 g, 4.51 mmol) and diisopropylethylamine (1 mE, 6.02 mmol) at 00 C. The reaction mixture was stirred at room temperature for 16 h. Afier consumption of starting material (by TEC), the reaction mixture was diluted with water (20 mE) and extracted with EtOAc (2×20 mE). The combined organic extracts were washed with water (20 mE), dried over anhydrous Na2SO4 and concentrated under reduced pressure to obtain N-(2-(cyclopropylamino)-4-fluorophenyl) cinnoline4-carboxamide (500 mg, crude) as brown solid used in the next step without further purification.10765] EC-MS: m/z 322.9 [M+H] at 2.71 RT (38.30% purity).

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Reference:
Patent; Viamet Pharmaceuticals (NC), Inc.; Sparks, Steven; Yates, Christopher M.; Shaver, Sammy R.; Hoekstra, William J.; (156 pag.)US2018/185362; (2018); A1;,
Cinnoline – Wikipedia
Cinnoline – an overview | ScienceDirect Topics

Sep 2021 News The Best Chemistry compound: 3-Bromocinnoline

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While the job of a research scientist varies, most chemistry careers in research are based in laboratories, where research is conducted by teams following scientific methods and standards. 78593-33-6. Introduce a common compound, CAS is 78593-33-6, Name is 3-Bromocinnoline, belongs to cinnolinecompound.

Starting material 1-A (11.8 g, 40 mmol), starting material 1-B (16.7 g, 80 mmol), CuI (3.8 g, 20 mmol), potassium carbonate (11.1 g, 80 mmol), and 1-methyl-1H-imidazole (3.3 g, 40 mmol) were added to 250 ml of toluene, and then, the mixture was refluxed while stirring under a nitrogen atmosphere for 7 days. Then, the reaction mixture was cooled to room temperature, 300 ml of water was added to isolate the organic layer, and the water layer was extracted twice with 250 ml of dichloromethane. The extracted organic layer was stirred with MgSO4 to remove water therefrom, and the organic layer was filtered and evaporated under reduced pressure. The resulting solid was subjected to column chromatography using, as an eluent, dichloromethane and normal hexane to obtain 5.6 g of Intermediate 1-C at the yield of 33%. MS (MALDI-TOF) m/z: 424 [M]+

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Reference:
Patent; SAMSUNG DISPLAY CO., LTD.; Kim, Myeongsuk; Ye, Jimyoung; Yoo, Byeongwook; Cho, Illhun; Kang, Sunwoo; Kim, Sunjae; Jeong, Jaeho; (112 pag.)US2020/99001; (2020); A1;,
Cinnoline – Wikipedia
Cinnoline – an overview | ScienceDirect Topics

Sep 2021 News Chemistry Milestones Of 3-Bromocinnoline

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Researchers are common within chemical engineering and are often tasked with creating and developing new chemical techniques, frequently combining other advanced and emerging scientific areas. 78593-33-6. Introduce a common compound, CAS is 78593-33-6, Name is 3-Bromocinnoline, belongs to cinnolinecompound.

Using the same procedure as that described above but from 3-bromocinnoline there was obtained 3-(4-methoxyphenylthio)cinnoline Yield: 74.6%. M.P.: 108 C. (isopropanol).

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Reference:
Patent; Sanofi; US5017579; (1991); A;,
Cinnoline – Wikipedia
Cinnoline – an overview | ScienceDirect Topics