139092-14-1Relevant articles and documents
ON EQUILIBRATION OF QUASSIN AND 4-EPIQUASSIN
Stojanac, Nada,Valenta, Zdenek
, p. 2298 - 2305 (2007/10/02)
Equilibration of quassin and 4-epiquassin is described.Various quassin derivatives are characterized and their relationship to quassin (I) is discussed.A regioselective deprotonation is achieved in quassin and 4-epiquassin (III) by the introduction of a diosphenolate grouping which makes a potentially acidic H-atom unavailable for attack by base.