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2004
Steroids
U 0300
46- 181
A New Electrochemical System for Stereoselective Allylic Hydroxylation of Cholesteryl Acetate with Dioxygen Induced by Iron Picolinate Complexes. — Iron
complexes of picolinic acid catalyze the stereoselective 7α-hydroxylation of cholesteryl acetate (I). Constant potential technique, cf. conditions A), yield better results than
the constant current method. Fe(II) picolinate can also be used as catalyst. Stereoselective hydroxylation is also observed in the case of oleanolate (IV). — (OKAMOTO, I.;
FUNAKI, W.; NAKAYA, K.; KOTANI, E.; TAKEYA*, T.; Chem. Pharm. Bull. 52
(2004) 6, 756-759; Showa Pharm. Univ., Machida, Tokyo 194, Japan; Eng.) —
C. Oppel
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