109493-07-4Relevant articles and documents
Studies on the Synthesis of Aphidicolin. Preparation of Aromatic Precursors for Spirocyclic Dienone Formation
Bell, Vivien L.,Giddings, Peter J.,Holmes, Andrew B.,Mock, Graham A.,Raphael, Ralph A.
, p. 1515 - 1522 (2007/10/02)
Novel syntheses of the alkanediones (12; R=Me, or CH2Ph) and the corresponding epoxides (13) are described.Attempts to cyclise these compounds to the spirocyclic dienone (4) were unsuccessful.Model studies on the phenolic keto cyano toluene-p-sulphonate (24) showed that the cyclopropane(25) was formed preferentially.A variety of related model compounds (29), (31), (32), and (37) were prepared and studied, but none could be cyclised to spirocyclic dienones.