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- Politecnico di Milano
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- Chemical Engineering
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- CHIMICA ORGANICA
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- Exam · Other
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280820oralsol
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CHIMICA ORGANICAOther
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CHIMICA ORGANICA A Prof. Francesco Gatti – Dr. Fabio Parmeggiani ESAME 28/08/2020 – PARTE 1 – QUESTIONARIO MICROSOFT FORMS SNA (sostituzione nucleofila aromatica): tanto più l’anello è elettron-povero, tanto più reagirà velocemente. Quindi sostituenti elettron-attrattori (NO2, CF3) aumentano la reattività, (a) Vero: per esempio riduzione di carbonili ad alcol. (b) Falso: gli alchini interni danno alcheni cis (Z). (c) Falso: si ottiene l’alcol primario. (d) Falso: intermedio carbocatione con perdita dell’informazione stereochimica, l’inversione si ha con SN2 109.5°, geometria tetraedrica
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