Electric Literature of 66909-38-4, Adding some certain compound to certain chemical reactions, such as: 66909-38-4, name is 6-Chloro-4-methylpyridin-3-amine,molecular formula is C6H7ClN2, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 66909-38-4.
2-Chloro-4-methyl-5-nitropyridine (lg, 5.8 mmol) was dissolved in EtOH (60 mL). AcOH (4 mL) and Fe (5 eq. ) were added and the mixture was refluxed at 80C overnight. The mixture was filtered through celite and reduced under vacuum to afford the crude 5-amino-2-chloro-4-methylpyridine which was used in the next step with no further purification. The amine was dissolved in cone. HC1 (6 mL), transferred to a 3-neck round bottom flask, and cooled to-5 C. A solution of NaNO2/H2O (440 mgs/5 mL) was slowly added and the mixture was allowed to stir for 10 mins. To a second, separate 3-neck round bottom flask was added H20 (12 mL) and cooled to-5 C. Thionyl chloride (4.5 eq. ) was then added dropwise. After complete addition the mixture was allowed to warm to room temp. Whereupon CuCl (. 05 eq. ) was added and the mixture was then cooled back down to -5C. The first reaction mixture, containing the amine precursor, was slowly added to the second reaction mixture. A froth formed and was filtered off to afford 6-chloro-4-methyl-pyridine-3-sulfonyl chloride which was used in the next step with no further purification. The title compound was synthesized from 2- [2- (R, S)-3-oxo-1, 2,3, 4-tetrahydro-quinoxalin-2-yl]-N- (pyrid- 4-yl) ethyl acetamide and 6-chloro-4-methyl-pyridine-3-sulfonyl chloride using Method G. MS ni/z (M+H) 501.4 ; HPLC (CH3CN-H2O-0.1% TFA): Rt= 2.05 min.
According to the analysis of related databases, 66909-38-4, the application of this compound in the production field has become more and more popular.
Reference:
Patent; ELAN PHARMACEUTICALS, INC.; WO2003/93245; (2003); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem