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O- and N-alkylated diketopyrrolopyrrole derivatives |
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| Authors: | &Scaron těpá n Frebort,Zdeněk Eliá &scaron ,Antoní n Ly?kaStanislav Luňá k Jr.,Jan VyňuchalLubomí r Kubá ?,Radim HrdinaLadislav Burgert |
| Affiliation: | a Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532010 Pardubice, Czech Republic b Centre for Organic Chemistry Ltd, Rybitví 296, CZ-533 54, Czech Republic c Synthesia, a. s., Semtín 103, CZ-532 17 Pardubice, Czech Republic |
| Abstract: | The alkylation of 3-phenyl-6-(2-thienyl)pyrrolo[3,4-c]pyrrole-1,4-dione with 1-bromo-2-ethylhexane was performed. Besides the expected N,N′-dialkylated product, both possible N,O-dialkyl derivatives were isolated and identified for the first time. The position of the alkyl substituents in all three dialkylated isomers was determined by 2D 1H and 13C NMR spectroscopy. |
| Keywords: | 1,4-Diketo-pyrrolo[3,4-c]pyrroles Alkylation O-Alkyl NMR |
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