联苯
化学
卟啉
分子内力
戒指(化学)
苯醌
药物化学
吸收(声学)
光化学
立体化学
结晶学
有机化学
物理
声学
作者
Shuibo Fan,Zhiqiang Tan,Min Liang,Mingbo Zhou,Yutao Rao,Ling Xu,Atsuhiro Osuka,Jianxin Song
标识
DOI:10.1142/s1088424622500663
摘要
2,2[Formula: see text]-Biphenyl-fused Ni(II) porphyrins were synthesized by two methods. One was oxidative fusion reaction of meso-(biphen-2-yl)-substituted Ni(II) porphyrin with the combination of 2,3-dichloro-5,6-dicyano-[Formula: see text]-benzoquinone (DDQ) and Sc(OTf) 3 and the other was Pd-catalyzed intramolecular cyclization of meso-(2[Formula: see text]-chlorobiphen-2-yl)-substituted Ni(II) porphyrin. These fused products showed contorted structures owing to the installed seven-membered carbocycle(s) that were revealed by X-ray crystallographic analysis and exhibited moderately red-shifted absorption bands.
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