Tag: M.W:400-500

75714-60-2, (S)-3,3′-Dibromo-2,2′-dimethoxy-1,1′-binaphthalene is a catalyst-ligand compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To magnesium turnings (583 mg, 24 mmol) activated with 1,2-dibromoethane in diethyl ether (4 ml), 2-bromo-1,3,5-triethylbenzene (3.86 g, 16 mmol) and diethylether (20 ml) were added alternately during 30 min. After complete addition the mixture was refluxed (oil bath heating) for 21 h. After cooling to ambient temperature, the solution was added to a mixture of (S)-3,3′-dibromo-2,2′-dimethoxy-1,1′-binaphthalene (4, 1.89 g, 4.0 mmol) and Ni(PPh3)2Cl2 (393 mg, 0.60 mmol) in anhydrous diethyl ether (40 ml). The reaction mixture was refluxed for 28 h, cooled to ambient temperature, carefully treated with saturated aqueous NH4Cl solution (40 ml) and water (40 ml), and extracted with CH2Cl2 (100 ml, 50 ml). The combined organic layers were dried (MgSO4), filtered, and the solvent removed under reduced pressure. The residue was purified by column chromatography on silica gel using 10-15% CH2Cl2/hexane as the eluent yielding the title compound as a colorless solid (1.22 g, 48%). 1H-NMR (400 MHz, CD2Cl2): delta 7.89 (d, J = 8.1 Hz, 2H), 7.74 (s, 2H), 7.44-7.40 (m, 2H), 7.32-7.25 (m, 4H), 7.06 (s, 2H), 7.05 (m, 2H), 3.10 (s, 6H), 2.70 (q, J = 7.6 Hz, 4H), 2.51 (q, J = 7.6 Hz, 4H), 2.46 (q, J = 7.6 Hz, 4H), 1.30 (t, J = 7.6 Hz, 6H), 1.15 (t, J = 7.6 Hz, 6H), 1.08 (t, J = 7.6 Hz, 6H); 13C-NMR (100 MHz, CD2Cl2): delta 155.0, 144.0, 142.9, 142.8, 134.9, 134.4, 134.2, 131.4, 130.8, 128.3, 126.4, 125.9, 125.4 (2C), 125.3, 125.0, 60.1, 29.1, 27.4, 27.3, 15.8, 15.6, 15.4; HRMS (ESI+) (m/z): [M+Na] calcd for C46H50O2Na, 657.3703; found, 657.3708., 75714-60-2

The synthetic route of 75714-60-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Studiengesellschaft Kohle mbH; Coric, Ilija; List, Benjamin; Vellalath, Sreekumar; EP2615098; (2013); A1;,
Metal catalyst and ligand design
Ligand Template Strategies for Catalyst Encapsulation – NCBI

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.2390-68-3,N-Decyl-N,N-dimethyldecan-1-aminium bromide,as a common compound, the synthetic route is as follows.

Didecyldimethylammonium bromide (0.003 mol) was dissolved in 100 mL of distilled water by gentle heating and stirring. Fast Green FCF (0.001 mol) was dissolved in 60 mL of distilled water by gentle heating and stirring. The two solutions were combined and the reaction mixture was heated and stirred for 30 minutes. The reaction mixture cooled to room temperature and then 60 mL of chloroform was added. The reaction mixture was stirred for an additional 30 minutes. The two phases were separated and the chloroform phase was washed several times with cool distilled water to remove any inorganic salt. The presence of chloride anions was monitored by silver nitrate test. A rotary evaporator removed the chloroform and a dark blue liquid was obtained in 65.54% yield. Melting point (hot plate apparatus)=liquid at room temperature. Thermal data determined by thermalgravimetric analysis (TGA): Tonset5%=194 C. and Tonset=200 C.

2390-68-3, The synthetic route of 2390-68-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Rogers, Robin D.; Daly, Daniel T.; Swatloski, Richard P.; Hough, Whitney L.; Davis, James Hilliard; Smiglak, Marcin; Pernak, Juliusz; Spear, Scott K.; US2007/93462; (2007); A1;,
Metal catalyst and ligand design
Ligand Template Strategies for Catalyst Encapsulation – NCBI

2390-68-3, N-Decyl-N,N-dimethyldecan-1-aminium bromide is a catalyst-ligand compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Didceyldimethylammonium bromide (0.001 mol) was dissolved in 60 mL of distilled water by gentle heating and stirring. Sodium sulfacetamide (0.001 mol) was dissolved in 60 mL of distilled water by gentle heating and stirring. The two solutions were combined and the reaction mixture was heated and stirred for 30 minutes. The reaction mixture cooled to room temperature and then 60 mL of chloroform was added. The reaction mixture was stirred for an additional 30 minutes. The two phases were separated and the chloroform phase was washed several times with cool distilled water to remove any inorganic salt. The presence of chloride anions was monitored by silver nitrate test. A rotary evaporator removed the chloroform and a yellowish gel was obtained in 87.74% yield. 1H and 13C NMR (DMSO) were obtained. Melting point (hot plate apparatus)=25-30 C. Thermal data determined by thermalgravimetric analysis (TGA): Tonset5%=183.3 C. and Tonset=200.2 C., 2390-68-3

As the paragraph descriping shows that 2390-68-3 is playing an increasingly important role.

Reference£º
Patent; Rogers, Robin D.; Daly, Daniel T.; Swatloski, Richard P.; Hough, Whitney L.; Davis, James Hilliard; Smiglak, Marcin; Pernak, Juliusz; Spear, Scott K.; US2007/93462; (2007); A1;,
Metal catalyst and ligand design
Ligand Template Strategies for Catalyst Encapsulation – NCBI

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.330680-46-1,Trimethyl [2,2′:6′,2”-terpyridine]-4,4′,4”-tricarboxylate,as a common compound, the synthetic route is as follows.

Exemplified dye D-3-1a was synthesized in the same manner as exemplified dye D-1-1a, according to the method shown in the following scheme, except that compound d-1-7 for exemplified dye D-1-1a was changed to compound d-15-1.

330680-46-1, As the paragraph descriping shows that 330680-46-1 is playing an increasingly important role.

Reference£º
Patent; FUJIFILM Corporation; Tani, Yukio; Kobayashi, Katsumi; (63 pag.)US9953768; (2018); B2;,
Metal catalyst and ligand design
Ligand Template Strategies for Catalyst Encapsulation – NCBI