L. Grimaud et al., DIASTEREOSELECTIVE INTRAMOLECULAR DIELS-ALDER REACTIONS TOWARDS THE SYNTHESIS OF A TAXOL C-RING PRECURSOR, Tetrahedron, 53(27), 1997, pp. 9253-9268
Intramolecular Diels-Alder reactions have been used for the synthesis
of cishydroisobenzofuranones 23 or 21, which represents a potential pr
ecursor of taxol C-ring. Easy preparation of beta-ketoesters 7a and 7b
is also described. (C) 1997 Elsevier Science Ltd.