@article{oai:nagoya.repo.nii.ac.jp:00010490,
 author = {Mori, Goro and Shinokubo, Hiroshi and Osuka, Atsuhiro},
 issue = {13},
 journal = {Tetrahedron Letters},
 month = {Mar},
 note = {Direct functionalization of aromatic substituents on [28]hexaphyrin was achieved by iridium-catalyzed borylation with theSmith–Miyaura–Hartwig protocol. High para selectivity was observed in the reaction on 2,6-dichlorophenyl and 2,6-dimethoxyphenylsubstituents of [28]hexaphyrin. The reaction with [26]hexaphyrin resulted only in reduction of the substrate to provide [28]hexaphyrinwithout borylation, thus highlighting the importance of the oxidation state of substrates in this catalytic transformation. The borylatedhexaphyrin can be used for Suzuki–Miyaura cross coupling reaction.},
 pages = {2170--2172},
 title = {Highly selective Ir-catalyzed direct sixfold borylation of peripheral aromatic substituents on hexakisaryl-substituted [28]hexaphyrin(1.1.1.1.1.1)},
 volume = {49},
 year = {2008}
}