Electric Literature of 15804-19-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.15804-19-0, Name is Quinoxaline-2,3(1H,4H)-dione, molecular formula is C8H6N2O2. In a Article£¬once mentioned of 15804-19-0
Benzimidazoles and related heterocycles : 8. Acid-catalyzed rearrangement of 3-aryl-1?H-spiro[2-pyrazoline-5,2?-quinoxalin]- 3?(4?H)-ones as a new efficient method for the synthesis of 2-(pyrazol-3-yl)benzimidazoles
3-Aryl-1?H-spiro[2-pyrazoline-5,2?-quinoxalin] -3?(4?H)-ones, easily available by the reaction of 3-(2-aryl-2-oxoethylidene)-3,4-dihydroquinoxalin-2(1H)-ones with hydrazine hydrate (and phenylhydrazine), in boiling acetic acid undergo new acid-catalyzed rearrangement with the contraction of pyrazine ring of the quinoxaline system to form 2-(pyrazol-3-yl)benzimidazoles. Possible mechanisms of this rearrangement are considered.
We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 15804-19-0, and how the biochemistry of the body works.Electric Literature of 15804-19-0
Reference£º
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N359 | ChemSpider