The reactions of 1,2-bis(2-Y-ethoxy)benzenes, N,N-bis(2-Y-ethyl)-N-phenylamines, or 2,6-bis(Y-methyl)pyridines (Y = I, Br, or OTs) with α,ω-polyoxaalkanediamines or diazacrown ethers in the presence or absence of alkali carbonates in a concentrated acetonitrile solution of the reactants afforded the corresponding azacrown ethers or cryptands in high yields.
1,2-bis(2-Y-乙氧基)苯、N,N-bis(2-Y-乙基)-N-苯基胺或2,6-bis(Y-甲基)
吡啶(Y = I、Br或OTs)与α,ω-聚氧烷二胺或二氮
冠醚在浓缩的
乙腈溶液中,存在或不存在碱性
碳酸盐的条件下反应,产生了相应的氮
冠醚或隐蔽
配体,收率很高。