Cross cyclotetramerization of 1,2,5-thiadiazole-3,4-dicarbonitrile and 4-tert-butylphthalodinitrile in the presence of magnesium butoxide gave a mixture of symmetric and asymmetric porphyrazine magnesium(11) complexes. One of these.. (2(2(3)),7(2(3)), 12(2(3))-tri-tert-butyltribenzo[b,g,l][1,2,5]thiadiazolo[3,4-q]-5,10,15,20-tetraazaporphyrinato)magnesium(II) (MgSBBB), was isolated by column chromatography and was treated with trifluoroacetic acid to obtain the corresponding free ligand (H2SBBB). The effect of the mode of heteroring fusion on the electronic absorption spectra of tribenzoporphyrazines was studied.
Synthesis and spectroscopic study of tert-butyl-substituted benzoporpyrazines with fused 1,2,5-thiadiazole fragments / A. A., Gaberkorn; Donzello, Maria Pia; P. A., Stuzhin. - In: RUSSIAN JOURNAL OF ORGANIC CHEMISTRY. - ISSN 1070-4280. - STAMPA. - 42:6(2006), pp. 929-935. [10.1134/s1070428006060200]
Synthesis and spectroscopic study of tert-butyl-substituted benzoporpyrazines with fused 1,2,5-thiadiazole fragments
DONZELLO, Maria Pia;
2006
Abstract
Cross cyclotetramerization of 1,2,5-thiadiazole-3,4-dicarbonitrile and 4-tert-butylphthalodinitrile in the presence of magnesium butoxide gave a mixture of symmetric and asymmetric porphyrazine magnesium(11) complexes. One of these.. (2(2(3)),7(2(3)), 12(2(3))-tri-tert-butyltribenzo[b,g,l][1,2,5]thiadiazolo[3,4-q]-5,10,15,20-tetraazaporphyrinato)magnesium(II) (MgSBBB), was isolated by column chromatography and was treated with trifluoroacetic acid to obtain the corresponding free ligand (H2SBBB). The effect of the mode of heteroring fusion on the electronic absorption spectra of tribenzoporphyrazines was studied.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
