Synthesis of 2,2′-biphenyl-fused porphyrins: Installation of directly fused seven-membered ring

Autor:	Shuibo Fan, Zhiqiang Tan, Min Liang, Mingbo Zhou, Yutao Rao, Ling Xu, Atsuhiro Osuka, Jianxin Song
Rok vydání:	2022
Předmět:	General Chemistry
Zdroj:	Journal of Porphyrins and Phthalocyanines. 27:105-113
ISSN:	1099-1409 1088-4246
DOI:	10.1142/s1088424622500663
Popis:	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.
Databáze:	OpenAIRE
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