90933-58-7Relevant articles and documents
Antimony Trichloride Catalysed Reactions on Cyclocostunolides
Kalsi, P. S.,Khurana, Sarita
, p. 1145 - 1146 (2007/10/02)
γ-Hydroxy esters (III and IV) derived from α- and β-cyclocostunolides (I) and (II), respectively undergo intramolecular transesterification on reaction with antimony trichloride in methanol.In the case of II this reaction is attended with a double bond shift.Unlike I, II undergoes an addition to the C4-exocyclic olefin.