Journal of Organic Chemistry p. 1414 - 1417 (1983)
Update date:2022-09-26
Topics: Convergent route
Toh, H. T.
Okamura, William H.
Permanganate oxidation of vitamin D3 affords the 7,8-diol 4a, which was successively silylated to 4b and then oxidatively cleaved and reduced to afford 3c.The latter was converted in several steps to phosphine oxide 3b, a useful A-ring fragment for analog
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