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http://hdl.handle.net/10316/5815| Title: | Ultrasound assisted remote functionalization of non-activated carbon atoms: efficient in situ formation of tetrahydrofurans by sonolysis of bromohydrins with (diacetoxyiodo)benzene/I2 | Authors: | Costa, Saul C. P. Moreno, M. J. S. Miranda Melo, M. Luísa Sá e Neves, André S. Campos |
Keywords: | steroids; tetrahydrofurans; halohydrins; sonochemistry | Issue Date: | 1999 | Citation: | Tetrahedron Letters. 40:49 (1999) 8711-8714 | Abstract: | Ultrasonic irradiation of bromohydrins in the presence of (diacetoxyiodo)benzene and I2 generates alkoxyl radicals which lead in situ to intramolecular hydrogen abstraction on the C-19 non-activated carbon atoms in steroids producing tetrahydrofurans selectively in very good yields. Photolysis was less effective in promoting such conversions. | URI: | http://hdl.handle.net/10316/5815 | Rights: | openAccess |
| Appears in Collections: | FFUC- Artigos em Revistas Internacionais |
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| filec7158fc3f6754120a992f706aacd2c63.pdf | 258.92 kB | Adobe PDF | View/Open |
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