Jump to main content
Jump to site search

Issue 11, 1995
Previous Article Next Article

Synthesis of novel carbo- and heteropolycycles. Part 30. 1,3-Dipolar cycloaddition of nitrile functions with some selected nitrones. Efficient synthesis of 2,3-dihydro-1,2,4-oxadiazole derivatives

Abstract

A practical reactivity of nitrile groups as dipolarophiles in 1,3-dipolar cycloadditions with 4-azahomoadamant-4-ene N-oxides 1 and 2, 2,2-dimethyl-3,4-dihydro-2H-pyrrole N-oxide 8 and N-benzylidenephenylamine N-oxide 10 is reported. Benzonitriles 3ci reacted with these nitrones upon heating for more than 12 h to afford the corresponding 2,3-dihydro-1,2,4-oxadiazole derivatives. The reaction of acetonitrile 3b with nitrone 1 required a prolonged reaction time (15 days). However, the reaction of an activated nitrile, methyl cyanoformate 3j, proceeded smoothly under milder conditions (25 °C for 1, 2 and 8, and 80 °C for 10).

Back to tab navigation

Article type: Paper
DOI: 10.1039/P19950001417
J. Chem. Soc., Perkin Trans. 1, 1995, 1417-1421

  •   Request permissions

    Synthesis of novel carbo- and heteropolycycles. Part 30. 1,3-Dipolar cycloaddition of nitrile functions with some selected nitrones. Efficient synthesis of 2,3-dihydro-1,2,4-oxadiazole derivatives

    Y. Yu, N. Watanabe, M. Ohno and S. Eguchi, J. Chem. Soc., Perkin Trans. 1, 1995, 1417
    DOI: 10.1039/P19950001417

Search articles by author

Spotlight

Advertisements