Rearrangement in the series of 3-(2-aryl-2-oxoethyl)-3,4-dihydroquinoxalin-2(1H)-ones
作者:N. N. Kolos、L. Yu. Kovalenko、A. Yu. Kulikov
DOI:10.1007/s11172-009-0133-0
日期:2009.5
ylidene)acetic acids accompanied by the elimination of the acyl groups. The nitration of 3-(2-oxo-2-phenylethyl)-3,4-dihydro-quinoxalin-2(1H)-one affords 5-nitro- and 7-nitro-2-carboxymethylidenequinoxalines. The bromination of quinoxalin-2-ones in AcOH gives 3-aryl-2-carboxymethylidenequinoxalines and the corresponding 7-bromo derivatives, with the former products predominating.
摘要4-乙酰基-和4-琥珀酰-3-(2-芳基-2-氧乙基)-3,4-二氢喹喔啉-2(1H)-酮重排为(Z)-2-(3-芳基喹喔啉-2-亚基)乙酸伴随着酰基的消除。3-(2-oxo-2-phenylethyl)-3,4-dihydro-quinoxalin-2(1H)-one 硝化得到 5-nitro-和 7-nitro-2-carboxymethylidenequinoxalines。quinoxalin-2-ones 在 AcOH 中的溴化得到 3-aryl-2-carboxymethylidenequinoxalines 和相应的 7-bromo 衍生物,其中前产物占主导地位。