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2005
Porphyrin derivatives
R 0130
One-Flask Synthesis of Mono- and Trifunctionalized 21-Thia and 21-OxaporphyBuilding Blocks and Their Application in the Synthesis of Covalent and Non05- 102 rin
covalent Unsymmetrical Porphyrin Arrays. — A novel, simple, and rapid route to
mono- and trisubstituted 21-thia and 21-oxaporphyrins is developed via easily available thiophene mono-ols or furan mono-ols. These porphyrins can smoothly be transformed into covalent unsymmetrical porphyrin dimers like (VIII) as well as noncovalent symmetrical porphyrin tetramers. In some dimers efficient energy transfer from
one subunit to another is observed. — (GUPTA, I.; RAVIKANTH*, M.; J. Org.
Chem. 69 (2004) 20, 6796-6811; Dep. Chem., Indian Inst. Technol., Bombay 400 076,
India; Eng.) — Jannicke
2005
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