79875-83-5Relevant academic research and scientific papers
Transannular Participation of Some C-19 Esters in Reactions at C-20 of Gibberellin A13
Frada, Braulio M.,Gonzalez, Antonio G.,Hernandez, Melchior G.,Tellado, Fernando G.,Hanson, James R.,Hitchcock, Peter B.
, p. 2740 - 2745 (2007/10/02)
Methanolysis or sodium borohydride reduction of the 3-acetoxy-7,19-dimethyl ester of gibberellin A13 20-toluene-p-sulphonyl anhydride afforded, respectively, the unusual 19-orthoester or epimeric 19-acetals as the major products rather than the products of simple displacement of the 20-toluene-p-sulphonoxy-group.The structure of the 19-orthoester was proven by X-ray analysis.
