New types of bi- and tri-dentate pyrrole-piperazine ligands and related zinc compounds: Synthesis, characterization, reaction study, and ring-opening polymerization of ε-caprolactone
作者:Ming-Chun Wu、Ting-Chia Hu、Ya-Chun Lo、Ting-Yu Lee、Chia-Her Lin、Wei-Yi Lu、Chu-Chieh Lin、Amitabha Datta、Jui-Hsien Huang
DOI:10.1016/j.jorganchem.2015.05.006
日期:2015.8
toluene overnight afforded pheoxide bridged di-zinc compound 4, Zn(μ-O-C6H4-4-Me)C4H3N-[2-CH2N(CH2CH2)2NPh]}}2. Similarly, the reactions of one and two equivalents of tridentate substituted pyrrole ligand 2 with ZnMe2 afforded Zn compounds ZnMeC4H2N-2,5-[CH2N(CH2CH2)2NPh]2}} (5) and ZnC4H2N-2,5-[CH2N(CH2CH2)2NPh]2}}2 (6), respectively, in moderate yield. All of these compounds were characterized
一或两当量甲醛和苯基哌嗪与吡咯在甲醇或乙醇中的反应生成取代的吡咯配体C 4 H 3 NH- [2-CH 2 N(CH 2 CH 2)2 NPh](1)和C 4 H 2 NH -分别为2,5- [CH 2 N(CH 2 CH 2)2 NPh] 2 }(2)。使1与一当量的ZnMe 2在甲苯中反应生成二锌化合物3 ZnMe C 4 H 3N- [2-CH 2 N(CH 2 CH 2)2 NPh]}} 2,产率中等。进一步反应3与两个当量p在甲苯过夜,得到pheoxide甲酚桥接二-锌化合物4,的Zn(μ-OC 6 H ^ 4 -4-Me)的C 4 H ^ 3 N- [2-CH 2 N( CH 2 CH 2)2 NPh]}} 2。类似地,一当量和两当量的三齿取代的吡咯配体2与ZnMe 2反应,得到Zn化合物ZnMe C4 H 2 N- 2,5- [CH 2 N(CH 2 CH 2)2