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- W2023561204 abstract "N-Methyl-, N,N-dimethyl-, N,N-diethylprop-2-ynylamines, N-prop-2-ynylacetamide and N-prop-2-ynylbenzamide are co-cyclized with diethyl hepta-1,6-diyne-4,4-dicarboxylate at room temperature in the presence of stoichiometric nickel(0) to give amino- and amido-indanes in fair to good yields. The structure of the product from N-prop-2-ynylbenzamide was established by X-ray crystallography. Likewise, N-alkyldiprop-2-ynylamines co-cyclize with methyl prop-2-ynyl ether to give isoindolines albeit in lower yields; the corresponding reaction of short chain N-alkynylalkynamides requires heating to 60 °C but gives isoindolinones and a 1,4-dihydroisoquinolin-3(2H)-one as mixtures of regioisomers in good yields. Attempts to synthesize medium-ring, benzo-fused lactams by this method failed." @default.
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- W2023561204 date "1996-01-01" @default.
- W2023561204 modified "2023-10-09" @default.
- W2023561204 title "Co-cyclizations of nitrogen-containing acetylenes induced by a nickel triphenylphosphine complex to give aminoindane, isoindoline and isoindolinone derivatives" @default.
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- W2023561204 doi "https://doi.org/10.1039/p19960000815" @default.
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