1201810-24-3Relevant articles and documents
Synthesis and high ranked NLT properties of new sulfonamide-substituted indium phthalocyanines
Carvalho, Eliana F.A.,Calvete, Mário J.F.,Cavaleiro, José A.S.,Dini, Danilo,Meneghetti, Moreno,Tomé, Augusto C.
scheme or table, p. 3945 - 3950 (2011/02/16)
The synthesis and characterization of three new indium phthalocyanines bearing eight N-alkyl- or N-arylsulfonamide groups is described. The new compounds are {2,3,9,10,16,17,23,24-octakis[4-(4-methoxyphenylaminosulfonyl] phenoxy]phthalocyaninato}indium(III) chloride (7), {2,3,9,10,16,17,23,24- octakis[4-diethylaminosulfonyl)phenoxy]phthalocyaninato}indium(III) chloride (8) and {2,3,9,10,16,17,23,24-octakis[4-didodecylaminosulfonyl)phenoxy] phthalocyaninato}indium(III) chloride (9), and were obtained in 23-49% yields. The precursors of phthalocyanines 7-9 are sulfonamide-substituted phthalonitriles that can be prepared by reacting 4,5-bis(4- chlorosulfonylphenoxy)phthalonitrile (3) with amines. The nonlinear transmission (NLT) of complexes 7-9 was determined at 532 nm using ns pulses. All three phthalocyanines behave as reverse saturable absorbers with increasing efficiency of optical limiting in the order 7 8 9. A comparative analysis of the NLT results is attempted in terms of the structural differences in 7-9.
Synthesis of sulfonamide-substituted phthalocyanines
Carvalho, Eliana F.A.,Calvete, Mário J.F.,Tomé, Augusto C.,Cavaleiro, José A.S.
experimental part, p. 6882 - 6885 (2010/05/03)
The synthesis and characterization of new phthalocyanines bearing eight N-alkyl or N-aryl sulfonamide groups is described. The synthetic route involves the chorosulfonation of 4,5-diphenoxyphthalonitrile with chlorosulfonic acid and reaction of the resulting 4,5-bis(p-chlorosulfonylphenoxy)phthalonitrile with amines. The sulfonamide-substituted phthalonitriles are then cyclotetramerized to yield the title compounds in good yields (50-83%).
