作者:Mateo Alajarin、Raul-Angel Orenes、Aurelia Pastor
DOI:10.1007/s11224-011-9787-y
日期:2011.10
Tris(2-ureidobenzyl)amines bearing three differentially substituted arms have been synthesized. They possess an asymmetric nitrogen atom, the pivotal one, and thus they feature C 1 symmetry. The self-assembly of these C 1-symmetric tris(2-ureidobenzyl)amines may potentially lead to multiple regio- and diastereoisomeric capsules coming from the pairing of the four stereoisomeric monomers with configurations (R, P), (S, P), (R, M) and (S, M). The 1H- and 19F1H}-NMR spectra confirm the presence of dimeric aggregates, as a mixture of several regio- and diastereoisomeric species.
我们合成了具有三个不同取代臂的三(2-脲基苄基)胺。它们拥有一个不对称的氮原子(关键氮原子),因此具有 C 1 对称性。这些 C 1 对称的三(2-脲基苄基)胺的自组装可能会产生多种区域异构体和非对映异构体胶囊,这些胶囊是由构型为 (R,P)、(S,P)、(R,M) 和 (S,M) 的四种立体异构体单体配对而成的。1H 和 19F1H}-NMR 光谱证实了二聚体的存在,它是几种区域异构体和非对映异构体的混合物。