Synthesis of<i>ortho-</i>Phenylenebis(guanidine) Derivatives with Potential Chirality
作者:Masahiro Fukuzumi、Waka Nakanishi、Tsutomu Ishikawa、Takuya Kumamoto
DOI:10.1002/hlca.201400053
日期:2014.11
potential chirality of ortho‐phenylenebisguanidines (BGs) with substituents at C(3) and C(6). Guanidinylation of 3,6‐disubstituted benzene‐1,2‐diamines with 2‐chloro‐4,5‐dihydro‐1,3‐dimethyl‐1H‐imidazolium chloride gave the corresponding BGs. X‐Ray crystallography showed that the two guanidine moieties occupy different faces of the benzene ring, creating potential chirality, although optical resolution of
我们报告了在C(3)和C(6)处有取代基的邻苯二甲双胍(BGs)的合成和潜在的手性。3,6-二取代的苯并1,2-二胺与2-氯-4,5-二氢-1,3-二甲基-1 H-咪唑氯化物的胍基化反应得到了相应的BG。X射线晶体学分析表明,尽管手性HPLC对t Bu-取代的BG的光学拆分没有成功,但两个胍基占据苯环的不同表面,形成了潜在的手性。然而,获得了甲基化的无环双胍盐(BGms),其为具有P 2 1 2 1 2 1 1空间组的手性晶体。