Convenient synthesis of 1-alkyl-2, 5-bis(thiophenylmethylene)pyrroles using the Mannich reaction
1998; Elsevier BV; Volume: 39; Issue: 10 Linguagem: Inglês
10.1016/s0040-4039(97)10786-9
ISSN1873-3581
AutoresIn Tae Kim, Ronald L. Elsenbaumer,
Tópico(s)Porphyrin and Phthalocyanine Chemistry
ResumoAminomethylation of 1-alkylpyrrole (alkyl: hydrogen, methyl, hexyl, dodecyl)by aqueous formaldehyde and dimethylamine hydrochloride, followed by reaction with iodomethane, affords the 1-alkyl-2,5-bis[(trimethylamino) methyl]pyrrole diiodide. These diiodide salt derivatives react with sodium thiophenoxide to give 1-alkyl-2,5-bis(thiophenyl methylene) pyrrole yielding monomers found to be useful for synthesizing new conducting polymers.
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