Synthesis of 5-substituted pyrimidines.<i>ortho</i>-directed lithiation of pyrimidine derivatives
作者:Akimori Wada、Junpei Yamamoto、Yuka Hamaoka、Kazuhiro Ohki、Sotoo Nagai、Shōichi Kanatomo
DOI:10.1002/jhet.5570270658
日期:1990.9
ortho-Directed lithiation of some pyrimidines has been investigated. Treatment of 2- and/or 4-alkoxy or acylaminopyrimidine with lithium 2,2,6,6-tetramethylpiperidide in ether at 0°, followed by quenching with various electrophiles afforded the corresponding 5-substituted pyrimidines.
已经研究了一些嘧啶的邻位定向锂化。在0°下用2,2,6,6-四甲基哌啶锂在乙醚中处理2-和/或4-烷氧基或酰基氨基嘧啶,然后用各种亲电试剂淬灭,得到相应的5-取代的嘧啶。