Double helices of dissymmetrical α, α′-disubstituted tripyrrins. Issue 6 (12th January 2023)

• Record Type: Journal Article
• Authors: Fukuda, Yui; Akamatsu, Yuki; Umetani, Masataka; Kise, Koki; Kato, Kenichi; Osuka, Atsuhiro; Tanaka, Takayuki
• Is Part Of: Organic & biomolecular chemistry. Volume 21:Issue 6(2023)
• Page Start: 1158
• Page End: 1162
• Publication Date: 2023-01-12
• Subjects: Chemistry, Organic -- Periodicals; Bioorganic chemistry -- Periodicals; Chemistry, Physical organic -- Periodicals; 547
• DOI: 10.1039/d2ob02125k
• Languages: English
• ISSNs: 1477-0520

Abstract

Abstract : Dissymmetrical α, α′-disubstituted tripyrrins have been prepared using a modified synthetic protocol. Abstract : Dissymmetrical α, α′-disubstituted tripyrrins have been prepared using a modified synthetic protocol. Tripyrrin 2a bearing 3, 5-bis(trifluoromethyl)phenyl and 4-methoxyphenyl moieties showed an anti -type dimer arrangement in the solid state. In contrast, syn -type dimers were observed for tripyrrin 2b bearing 3, 5-bis(trifluoromethyl)phenyl and 3, 5-di- t -butylphenyl moieties. In addition, proton-exchange NH tautomerization was observed in 2b .