80636-30-2, 3,3-Dimethyl-3,4-dihydroquinoxalin-2(1H)-one is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,80636-30-2
EXAMPLE 296 3,3-Dimethyl-4-[(1-methyl)ethyl]oxycarbonyl-1,2,3,4-tetrahydroquinoxalin-2-one (IV) To 2.28 g of 4-chlorocarbonyl-3,3-dimethyl-1,2,3,4-tetrahydroquinoxalin-2-one (prepared by the method of Example 32 but using 3,3-dimethyl-1,2,3,4-tetrahydroquinoxalin-2-one rather than 6-fluoro-3,3-dimethyl-1,2,3,4-tetrahydroquinoxalin-2-one) in 25 ml of 2-propanol (the starting material is not all in solution) are added 0.694 g of lithium isopropoxide. After about 1.5 hr the reaction mixture became homogeneous and then again heterogeneous as the product precipitated out. After a total of 2 hr the solvent is removed under reduced pressure and the residue is partitioned between dichloromethane aid saline. The organic layers are dried over sodium sulfate and the filtrate is concentrated. Ether is added and the resulting solid is collected to give the title compound. NMR (CDCl3) 1.28, 1.63, 5.01, 6.80, 6.98-7.11, 7.27, 7.96 delta.
80636-30-2 3,3-Dimethyl-3,4-dihydroquinoxalin-2(1H)-one 595203, aquinoxaline compound, is more and more widely used in various fields.
Reference£º
Patent; The Upjohn Company; US5541324; (1996); A;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider