enantiomeric homogeneity of light-driven molecular motors based on overcrowded alkenes is crucial in their application as either unidirectional rotors or as chiral multistate switches. It was challenging to obtain these compounds as single enantiomers via the established synthetic procedures due to loss of optical purity in the key step, i.e., the Barton-Kellogg olefination reaction. Searching for strategies
基于拥挤烯烃的光驱动分子马达的对映异构均质性对于单向转子或手性多态开关的应用至关重要。由于在关键步骤即Barton-Kellogg烯烃化反应中光学纯度的损失,通过既定的合成方法将这些化合物作为单一对映体获得是具有挑战性的。在寻找避免外消旋的策略的过程中,设计,合成和研究了一类新型的光驱动分子马达。在整个合成过程中完全保留了立体
化学完整性,并且在使用UV / vis,CD和1H NMR光谱进行光
化学和动力学研究的基础上,已确定它们仍可作为单向分子马达正常运行。