Controlled helical senses of twisting in two-, three- and four-layer cyclophanes with planar chirality
Controlled helical senses of twisting in two-, three- and four-layer cyclophanes with planar chirality
复制标题
具有平面手性的二层、三层和四层环烷的受控螺旋扭转方向
DOI：
10.1039/d2cc05742e
复制
发表时间：
2022
影响因子：
4.9
通讯作者：
Shimomura Kai
中科院分区：
文献类型：
--
作者：
Katoono Ryo;Shimomura Kai
我们合成了具有多对螺旋构象的平面手性环烷，这些螺旋构象是在中间层处通过扭转产生的。三层和四层环烷通过平面手性的分子内传递倾向于具有单一扭转感的同手性形式。另外，在由两个正交堆叠的非手性平面组成的两层环烷中，杂手性形式占主导地位。
We synthesized planar chiral cyclophanes with multiple pairs of helical conformations that were generated by twisting at the interlayer. Three- and four-layer cyclophanes preferred a homochiral form with a single sense of twisting through intramolecular transmission of planar chirality. Alternatively, a heterochiral form was dominant in a two-layer cyclophane consisting of two achiral planes that were stacked orthogonally.