Tetrahedron Letters p. 8711 - 8714 (1999)
Update date:2022-08-16
Topics:
Costa, Saul C. P.
Moreno, M. J. S. Miranda
Saì? e Melo, M. Luisa
Campos Neves, Andreì? S.
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.
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(1984)Doi:10.1002/jps.2600760809
(1987)Doi:10.1021/ic502919s
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