Journal of the American Chemical Society

Inverse-electron-demand Diels-Alder reactions of Fischer carbene complexes: A new and efficient dihydrobenzene synthesis via a retrocycloaddition of chromium …

SLB Wang, WD Wulff

Index: Wang, Siu Ling B.; Wulff, William D. Journal of the American Chemical Society, 1990 , vol. 112, # 11 p. 4550 - 4552

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Citation Number: 48

Abstract

" Method A: 0.05 M in neat olefin. Method B: 0.05 M in CH2C12 with 2.5-4.5 equiv of olefin.* Reaction carried out on ethyl ester. cAromatized product 3h obtained in 8% yield. dConcentration 0.1 M in benzene with 3 equiv of olefin. elsolated yield of the aromatized product. pyranylidene complexes of the type 2 with electron-rich olefins. These reactions have the anticipated advantage of increased rate enhancementsIb2 compared to the ...