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- W1988251505 abstract "The cycloaddition of nitrilimines 1a–e to ethyl α-cyanocinnamate 6a furnished the 2-pyrazoline derivatives 11a–e respectively. Similar reactions of 1a–e with ethyl α-cyano-p-nitrocinnamate 6b yielded 1,3-disubstituted 4-(p-nitrophenyl)-5-ethoxycarbonylpyrazoles 14a–e, via elimination of hydrogen cyanide from their precursors, the 2-pyrazoline derivatives 13a–e, respectively. The structures of the cycloadducts 11 and 14 were supported by spectral ( 13 C and 1 H nuclear magnetic resonance and infrared) and analytical data." @default.
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- W1988251505 date "1988-06-01" @default.
- W1988251505 modified "2023-09-27" @default.
- W1988251505 title "Regioselective synthesis of 2-pyrazolines and pyrazoles from ethyl α-cyanocinnamates" @default.
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- W1988251505 doi "https://doi.org/10.1139/v88-224" @default.
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