Formation of substituted pyrazolines in the reaction of C,N-diphenylnitrilimine with a zwitterion derived from triisopropylphosphine and ethyl 2-cyanoacrylate |
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| Authors: | Yu G Gololobov O A Linchenko Yu G Trishin P V Petrovskii S A Starikova |
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| Institution: | (1) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russian Federation;(2) St.-Petersburg State Technological University of Plant Polymers, 4 ul. Ivana Chernykh, 198095 St.-Petersburg, Russian Federation |
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| Abstract: | The reaction of C,N-diphenylnitrilimine with a P-zwitterion derived from Pri
3P and H2C=C(CN)CO2Et afforded the first representative of 2-pyrazolines containing the phosphonium group and products of the addition of nitrilimine to Pri
3P and H2C=C(CN)CO2Et. The reaction of the P-zwitterion with C-4-nitrophenyl-N-phenylnitrilimine gave rise to a condensation product of one Pri
3P molecule and two nitrilimine molecules. The three-dimensional structures of the compounds synthesized were established by X-ray diffraction analysis. |
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| Keywords: | phosphorus-containing zwitterion nitrilimines 2-pyrazolines |
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