In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 32998-25-7, name is 2-Chloro-3-methoxyquinoxaline, introducing its new discovery. name: 2-Chloro-3-methoxyquinoxaline
Preparation and Reactions of 2-Alkynyl-3-chloroquinoxalines.
2-Alkynyl-3-chloroquinoxalines are prepared from 2,3-dichloroqionoxaline and alk-1-ynes: use of 2-methylbut-3-yn-2-ol, and the removal of acetone with base, yields 2-chloro-3-ethynylqionoxaline.The chloroalkynes are readily converted into pyrrolo- and thieno<2,3-b>qionoxalines. 2-Chloro-3-phenylethynylquinoxaline with potassium hydroxide gives 2-phenylfurano<2,3-b>quinoxaline but other furano-compounds could not be prepared. 2-Chloro-3-(3-hydroxy-3-methylbut-2-ynyl)quinoxaline with ethanolic sodium ethoxide yields 2H-2,2-dimethyl-3-ethoxypyrano<2,3-b>quinoxaline.When 2-ethynyl- or 2-chloro-3-ethynylqionoxaline is heated with morpholine and sulphur, 2-morpholinothieno<2,3-b>quinoxaline is obtained.The structures of these compounds are established by spectroscopic methods.
We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 32998-25-7, and how the biochemistry of the body works.name: 2-Chloro-3-methoxyquinoxaline
Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1118 | ChemSpider