Improved syntheses of meso-tetraarylbenziporphyrins and observations of substituent effects on the diatropic characteristics of these formally nonaromatic carbaporphyrinoids
作者:Timothy D. Lash、Valerie R. Yant
DOI:10.1016/j.tet.2009.09.060
日期:2009.11
opposite effect in this case. These results are consistent with the aromatic characteristics deriving from canonical forms that have [18]annulene substructures. Two examples of palladium(II) benziporphyrin complexes were prepared and these results demonstrate that the presence of 4-chlorophenyl or tert-butyl groupings do not have a negative impact on the formation of organometallic derivatives. The improved