Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Org Lett. 2009 Nov 19;11(22):5294-7. doi: 10.1021/ol902246c.
Four pairs of novel N(H)-bridged azacalixarenes derived from triptycene were synthesized by both one-pot and two-step fragment-coupling approaches. Due to the unique 3D rigid structure of triptycene, the macrocycles all adopted fixed conformations in both solution and solid state. X-ray crystallographic analyses also revealed that the cis isomers with boat conformations showed the capability of encapsulating methanol and acetone molecules inside.
四种新型 N(H)-桥联氮杂杯芳烃衍生物是通过一锅法和两步分段偶联法合成的。由于三并苯独特的 3D 刚性结构,大环在溶液和固态中均采用固定构象。X 射线晶体学分析还表明,具有船式构象的顺式异构体具有包合甲醇和丙酮分子的能力。