Synthesis p. 181 - 183 (1987)
Update date:2022-08-16
Topics:
Aburatani, Masakazu
Takeuchi, Tadashi
Mori, Kenji
Sterols 1 were converted to 3α-5-cyclo-6-ones 4 via their mesylates and subsequent oxidation.Refluxing 4 with sodium bromide/p-toluene sulfonic acid in dimethylformamide gave steroidal 2-en-6-ones 5, among which 5 is an important brassinolide intermediate.
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(1956)
