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Publikováno v:
Organic Letters. 23:7656-7660
Herein we report a cascade cocatalysis strategy for the facile construction of chiral γ,γ-disubstituted butenolides. The synthetic manifold employs simple alkynoic acids instead of the preformed silyloxy furans or 5-substituted furan-2(3H)-ones. In
Publikováno v:
Organic Letters. 15:5634-5637
An organocatalytic highly enantioselective Michael-aldol cascade access to valuable chiral dihydronaphthalenes has been realized. Notably, the strategy via activation of nucleophilic alkyl chains by introducing nitro, chloro, or CF3 group(s) at the o