The Mitsunobu 1-O-esterification of 1-hydroxy-3-phenyl-1H-quinoxalin-2-one 4-oxide
作者:T. A. Kropacheva、V. K. Khlestkin
DOI:10.1007/s11172-008-0162-0
日期:2008.6
1-Hydroxy-2-oxo-3-phenyl-1,2-dihydroquinoxaline 4-oxide under conditions of the Mitsunobu reaction reacts with alcohols giving the corresponding esters at the hydroxy group in position 1. Other representatives of hydroxamic acids such as 1,4-dihydroxyperhydroquinoxaline-2,3-dione and 1,4-dihydroxy-3,3,6,6-tetramethylpiperazine-2,5-dione undergo destruction under these conditions.
在 Mitsunobu 反应条件下,1-羟基-2-氧代-3-苯基-1,2-二氢喹喔啉 4-氧化物与醇反应,在 1 位的羟基上生成相应的酯。羟肟酸的其他代表如 1,4-二羟基全氢喹喔啉-2,3-二酮和 1,4-二羟基-3,3,6,6-四甲基哌嗪-2,5-二酮在这些条件下也会发生破坏。