Tetrahedron p. 1179 - 1182 (1984)
Update date:2022-07-29
Topics:
Vanmaele, L. J.
Clercq, P. J. De
Vandewalle, M.
Halkes, S. J.
Overbeek, W. R. M.
An efficient method for the preparation of crystalline 1α-hydroxy previtamin D3 is described.Also the stereoselective reduction of 1-keto previtamin 9 is discussed; it was observed that with aluminium hydride 7 is the most abundant product.This stands in contrast with previously reported LiAlH4 and NaBH4 mediated reductions.
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