Course of Chemical Engineering, National Institute of Technology, Anan College, 265 Aoki, Minobayashi, Anan, Tokushima 774-0017, Japan.
Chem Commun (Camb). 2020 Apr 25;56(32):4484-4487. doi: 10.1039/d0cc01194k. Epub 2020 Mar 23.
We have developed a two- or three-step synthesis of polyaza[5]-[9]helicenes by consecutive N-H/C-H coupling with a hypervalent iodine reagent. We further evaluated their photophysical properties, and circularly polarized luminescence properties and found that g values increase with the number of fused rings up to 2.7 × 10, which is the highest value among [9]helicenes.
我们开发了一种两步或三步法，通过与高价碘试剂的连续 N-H/C-H 偶联来合成多氮杂[5]-[9]螺旋芳烃。我们进一步评估了它们的光物理性质和圆偏振发光性质，发现 g 值随稠合环的数量增加至 2.7×10，这是[9]螺旋芳烃中的最高值。
