Beilstein J. Org. Chem.2019,15, 1976–1983, doi:10.3762/bjoc.15.193
noncovalent interactions between anions and the tetrazine rings.
Keywords: anion–π interactions; coronarenes; host–guest complexation; N-functionalized phthalimides; O6-corona[3]arene[3]tetrazines; Introduction
Synthetic macrocycles [1][2] are always attractive and important because they are unique
heteroatoms and meta-(het)arenes in an alternative manner. Because of the interplay between heteroatoms and aromatic rings, heteracalixaromatics possess versatile molecular recognition properties and have found wide supramolecular applications. Very recently, we have devised coronarenes [22] simply through
editing or varying the meta-substitution of arylenes within heteracalixaromatics into the para-substitution. In contrast to heteracalixaromatics which adopt generally 1,3-alternate conformations giving V-shaped cleft structures [17][18][19][20][21], the resulting coronarenes form, however, cylindroid
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Graphical Abstract
Scheme 1:
Synthesis of phthalimide-containing O6-corona[3]arene[3]tetrazines.