Tetrahedron Letters p. 535 - 538 (1989)
Update date:2022-08-03
Topics:
Batra, Radhika
Breslow, Ronald
3-α-Cholestanyl esters of bipyridine acids and of iodophenylpyridine acids can direct radical chlorination to both C-9 and C-17 of the steroid, with high efficiency.The reaction is quite sensitive to reaction conditions and precise geometry.
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