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- W1992992021 abstract "1,3-Dipolar cycloaddition reactions of zwitterionic pyridinium, quinolinium, and isoquinolinium phenacylides with cyanoacetylene or chlorocyanoacetylene afforded 1-cyanoindolizine derivatives. Similar reactions of N-aminopyridinium and isoquinolinium salts gave 3-cyanopyrazolo[1,5-a]pyridine derivatives. A 3-methylpyridinium ylide reacted with the same dipolarophiles at the 2-position, in spite of hindrance by the methyl group. Reactions of cyclopentadien ylides with cyanoacetylenes gave trans-2-(2-cyanovinyl)cyclopentadienylides." @default.
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- W1992992021 date "1970-01-01" @default.
- W1992992021 modified "2023-09-25" @default.
- W1992992021 title "The chemistry of cyanoacetylenes. Part V. 1,3-Dipolar cycloaddition reactions of cyanoacetylenes with N-ylides and N-imines" @default.
- W1992992021 doi "https://doi.org/10.1039/j39700000481" @default.
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