Synthesis of Symmetrical Dinitro- and Diamino-Substituted Tröger's Base Analogues
作者:Jiří Šturala、Radek Cibulka
DOI:10.1002/ejoc.201201188
日期:2012.12
synthetic approach to symmetrical diamino-substituted Troger's base analogues, allowing the synthesis of 1,7-, and 4,10-diamino derivatives with no additional substituents and of 3,9-diamino derivative with methyl groups in the 1-, 4-, 7- and 10-positions. The synthesis uses regioselective nitration of dihalo-substituted- or tetrahalo-substituted Troger'sbases followed either by hydrogenation of the nitro
nitro-substituted anilines or condensation of phenylenediamine derivatives with dianhydrides, the novel protocol can be used to prepare different functionalized TB-based diamine monomers from a wide variety of aniline derivatives. PIM-PI-TB-1 (made from 6FDA and dibromo-tetramethyl-substituted TB diamine) and PIM-PI-TB-2 (made from 6FDA and tetramethyl-substituted TB diamine) are intrinsically microporous polymers