Intramolecular photocycloadditions-cyclobutane fragmentation: total synthesis of (.+-.)-pentalenene,(.+-.)-pentalenic acid, and (.+-.)-deoxypentalenic acid
MT Crimmins, JA DeLoach
文献索引：Crimmins, Michael T.; DeLoach, Joe A. Journal of the American Chemical Society, 1986 , vol. 108, # 4 p. 800 - 806
Conclusions (Ferra-P-diketonato) BF, complexes having alkenyl substituents on the ferra- chelate ring react as activated dienophiles in Diels-Alder cycloaddition reactions. In this study, ten such Diels-Alder adducts have kn prepared and characterized. The regioselectivity of these cycloadditions is very high and follows the regiochemistry exhibited by methyl methacrylate in analogous Diels-Alder reactions. Furthermore, due to the highly ...
