39 research outputs found

    La substitution nucléophile activée en série aromatique II.-Effet polaire des groupements alcoyle-Réaction d'échange bromo-iode dans une série de 1-alcoyl-4-bromo-3,5-dinitro-benzÚnes

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    Rate constants and Arrhenius parameters pertaining to the bimolecular exchange between 1‐alkyl‐4‐bromo‐3,5‐dinitro‐benzenes and potassium iodide, in dry acetone, have been determined. The alkyl radical is sucessively: H, CH3, (CH3)3C. The experimental data give a measure of the polar effect of these alkyl groups located para to the seat of substitution. Copyright © 1955 Wiley‐VCH Verlag GmbH & Co. KGaA, WeinheimSCOPUS: ar.jinfo:eu-repo/semantics/publishe
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