Abstract
Cu(i)-mediated annulation reaction of a 1,1′-(1,3-butadiyne)-8, 8′-(2,5-thiophene)-bridged carbazole dimer 10 with amines provided the N-substituted carbazole-based isophlorines 11a-11c. A similar annulation reaction with selenium in the presence of hydrazine monohydrate afforded hetero-core-modified isophlorine 12. The oxidation of 12 generated the corresponding 21-selena-23-thiaporphyrin 13, which exhibited NIR absorption. The intramolecular charge transfer from Se to S was confirmed by the 1H NMR results along with DFT calculations. This journal is
Original language | English |
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Pages (from-to) | 2656-2662 |
Number of pages | 7 |
Journal | Organic and Biomolecular Chemistry |
Volume | 12 |
Issue number | 17 |
DOIs | |
Publication status | Published - 2014 May 7 |
ASJC Scopus subject areas
- Biochemistry
- Physical and Theoretical Chemistry
- Organic Chemistry