@article{SengeBischoff2004,
  author    = {Senge, Mathias O. and Bischoff, Ines},
  title     = {SNAr reactions of beta-substituted porphyrins and the synthesis of meso substituted tetrabenzoporphyrins},
  issn      = {0040-4039},
  year      = {2004},
  abstract  = {Reaction of 2,3.7,8,12,13,17,18-octaethylporphyrin with LiR reagents containing functional groups readily yields meso substituted derivatives suitable for further transformations with residues such as -p-C6H5Br, -p-C6H5-C=CH - p-C6H5-NH2 or -(CH2)(3)-CH=CH2. Similar reactions of tetrabenzoporphyrin with alkyllithium reagents afforded the first entry into meso mono- and dialkylsubstituted tetrabenzoporphyrins while reaction of bicyclo[2.2.2]oct-type masked isoindole precursors with LiR followed by in situ retro-Diels-Alder reaction also afforded the 5-phenyl and 5,10- diphenyltetrabenzoporphyrins in high purity. (C) 2004 Elsevier Ltd. All rights reserved},
  language  = {en}
}