Extension of antiaromatic norcorrole by cycloaddition. Issue 20 (20th February 2018)

• Record Type: Journal Article
• Authors: Fu, Xinliang; Meng, Yankui; Li, Xiaofang; Stępień, Marcin; Chmielewski, Piotr J.
• Is Part Of: Chemical communications. Volume 54:Issue 20(2018)
• Page Start: 2510
• Page End: 2513
• Publication Date: 2018-02-20
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c8cc00447a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Cycloaddition of iminonitrile to norcorrolatonickel(ii ) yields the first chiral antiaromatic tetrapyrrole and pyrazole-fused system of enhanced paratropicity. Abstract : 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.