SIMPLE DESIGN FOR THE CONSTRUCTION OF COMPLEX GIBBERELLIN FRAMEWORK STEREOSELECTIVE SYNTHESIS OF A POSSIBLE KEY INTERMEDIATE TO GA(12) VIA PD2-PROMOTED CYCLOALKENYLATION REACTION()
M. Toyota et al., SIMPLE DESIGN FOR THE CONSTRUCTION OF COMPLEX GIBBERELLIN FRAMEWORK STEREOSELECTIVE SYNTHESIS OF A POSSIBLE KEY INTERMEDIATE TO GA(12) VIA PD2-PROMOTED CYCLOALKENYLATION REACTION(), Tetrahedron, 51(25), 1995, pp. 6927-6940
A successful design for the construction of C-20 gibberellin framework
has been described. The key features of the synthesis are as follows:
(a) Pd2+-promoted cycloalkenylation reaction (6-->15) and (b) intramo
lecular Diels-Alder reaction (4-->3).