Extension of antiaromatic norcorrole by cycloaddition
作者:Xinliang Fu、Yankui Meng、Xiaofang Li、Marcin Stępień、Piotr J. Chmielewski
DOI:10.1039/c8cc00447a
日期:——
The antiaromatic ring of norcorrole, a contracted tetrapyrrolic porphyrinoid, was subjected to [2+3] dipolar cycloaddition of iminonitriles. The paratropic character of the resulting chiral chlorins was retained. The chlorins were easily dehydrogenated in the presence of air, yielding pyrazole-fused norcorroles with markedly enhanced paratropicity.