Dv. Yashunsky et al., CHEMISTRY OF DIMETHYLAMINOMETHYLPORPHYRINS - NEW SYNTHESIS OF MESO-METHYLPORPHYRINS VIA TRIPHENYLPORPHYRINYLMETHYLPHOSPHONIUM IODIDES, Tetrahedron letters, 37(39), 1996, pp. 7147-7150
Reaction of various trimethyl(porphyrinylmethyl) ammonium iodides (gen
erated in situ from the corresponding meso-dimethylaminomethylporphyri
ns and iodomethane) with triphenylphosphine afforded triphenylporphyri
nylmethylphosphonium iodides which, when subjected to mild basic hydro
lysis, gave meso-methylporphyrins in high yields. Copyright (C) 1996 E
lsevier Science Ltd