Journal of the Chemical Society. Perkin transactions I p. 3016 - 3019 (1981)
Update date:2022-08-11
Topics:
Duri, James Z.
Fraga, Braulio M.
Hanson, James R.
Treatment of methyl gibberellate and its 3-epimer with triphenylphosphine and carbon tetrachloride containing acetone or pyridine, gave the 1β-chloro- and 1β,13-dichloro-Δ2-derivatives respectively as the major products.The 3-chloro-compounds were obtained as minor products.The 1-bromo-compounds were obtained with carbon tetrabromide.The structures of these compounds were established by location of the label in the products from methyl 3-epi-<3β-(2)H>gibberellate.
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