alkylated to give the N-alkylpiperazines of the type XC6H4N(CH2CH2)2N(CH2)nNH2. The amine functions of these derivatives are in turn easily subjected to mono- or dialkylation to provide potentially tridentate ligands of the types XC6H4N(CH2CH2)2N(CH2)nN(H)(CH2Y) and XC6H4N(CH2CH2)2N(CH2)nN(CH2Y)(CH2Z), respectively. The latter class of dialkylated derivatives may be symmetrically (Y=Z) or unsymmetrically
XC 6 H 4 N(CH 2 CH 2)2 NH芳基
哌嗪易于烷基化,得到XC 6 H 4 N(CH 2 CH 2)2 N(CH 2)n NH 2类型的N-烷基
哌嗪。这些衍
生物的胺官能团又容易进行单或二烷基化反应,以提供类型为XC 6 H 4 N(CH 2 CH 2)2 N(CH 2)n的潜在的三齿
配体。N(H)(CH 2 Y)和XC 6 H 4 N(CH 2 CH 2)2 N(CH 2)n N(CH 2 Y)(CH 2 Z)。后者的二烷基化衍
生物可以被对称(Y = Z)或不对称(Y≠Z)取代。该研究的供体基团Y和Z包括
吡啶,
咪唑,甲基
咪唑,
噻唑,
羧酸盐和
硫醇盐。