One-pot synthesis of oxidized and reduced heptaphyrins with unusual TFA binding

Organic Letters

Volumn 9, Issue 17, 2007, Pages 3355-3357

  Gokulnath, Sabapathi ^a   Prabhuraja, Viswanathan ^a   Chandrashekar, Tavarekere K ^b  

^a INDIAN INSTITUTE OF TECHNOLOGY KANPUR   (India)

^b REGIONAL RESEARCH LABORATORY CSIR   (India)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 34548175994     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol0713180     Document Type: Article

References (19)

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2. (b) Sessler, J. L.; Gebauer, A.; Weghom, S. J. In Expanded Porphyrins; Kadish, K. M., Smith, K. M., Guilard, R., Eds; Academic Press: San Diego, CA, 2000.
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14. Tetrapyrranes 9 and 10 were synthesized from acid-catalyzed condensation of corresponding dipyrromethane dicarbinol with pyrrole.
15. Shin, J.-Y.; Furuta, H.; Osuka, A. Angew. Chem., Int. Ed. 2001, 40, 619.
16. 4, the color turns from blue to red. However, the reduced forms cannot be isolated as they revert back to the oxidized form during purification.
17. The presence of disordered TFA in the crystal precludes unambiguous determination of the degree of protonation.
18. Crystal structure of compound 13 has been deposited at the Cambridge Crystallographic Data Centre with reference no. CCDC 648657.
19. Shin, J.-Y.; Furuta, H.; Yoza, K.; Igarashi. S.; Osuka, A. J. Am. Chem. Soc 2001, 123, 7190.