Citation

Clark-Lewis JW , Della EW Mahandru MM (1969) Flavan derivatives. XXVI. 3(3')-Hydroxyisochromano(4',3':2,3)chromans. Mechanism of formation of these hemiketals from 1'-Oxo-isochromono-(4',3':2,3)chromones. Australian Journal of Chemistry 22, 2389-2394.

https://doi.org/10.1071/CH9692389