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- W1971508799 abstract "Alkyl-5H-6,7-dihydrocyclopenta[b]pyrazines are prepared by condensation of cyclopentenolones with alkylenediamines or of aliphatic α-diketones with 1,2-diaminocyclo pentanes. Products so obtained were dehydrogenated using palladium on activated charcoal, or copper chromite. NMR. and mass spectra are given for 21 bicyclic pyrazines and intermediates, and their IR. spectra are compared." @default.
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- W1971508799 date "1973-01-31" @default.
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- W1971508799 title "Pyrazines. 2ème communication [1]. II. Synthèse de dihydro-6,7-5<i>H</i>-cyclopenta[<i>b</i>]pyrazines alkylées" @default.
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- W1971508799 doi "https://doi.org/10.1002/hlca.19730560206" @default.
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