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Synthesis of meso-substituted dihydro-1,3-oxazinoporphyrinsDOI: 10.3762/bjoc.9.53 Keywords: dihydro-1 , 3-oxazinoporphyrins , iminoporphyrins , La(OTf)3 , Mannich type reaction , synthesis Abstract: Novel dihydro-1,3-oxazinoporphyrins and naphtho[e]bis(dihydro-1,3-oxazinoporphyrin) derivatives, in which the porphyrin macrocycle is covalently linked to the dihydro-1,3-oxazine ring system were successfully synthesized from 5-(4-aminophenyl)-10,15,20-triphenylporphyrin in good yields. The structures of the target products were established on the basis of spectral data and elemental analyses.
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