Grunwald-Winstein Analysis - Isopropyl Chloroformate Solvolysis Revisited
نویسندگان
چکیده
منابع مشابه
Grunwald-Winstein Analysis - Isopropyl Chloroformate Solvolysis Revisited
Specific rates of solvolysis at 25 degrees C for isopropyl chloroformate (1) in 24 solvents of widely varying nucleophilicity and ionizing power, plus literature values for studies in water and formic acid, are reported. Previously published solvolytic rate constants at 40.0 degrees C are supplemented with two additional values in the highly ionizing fluoroalcohols. These rates are now are anal...
متن کاملExtended Grunwald-Winstein Analysis - LFER Used to Gauge Solvent Effects in p-Nitrophenyl Chloroformate Solvolysis
Specific rates of solvolysis at 25 degrees C for p-nitrophenyl chloroformate (1) are analyzed using the extended (two-term) Grunwald-Winstein equation. For 39 solvents, the sensitivities (l = 1.68+/-0.06 and m = 0.46+/-0.04) towards changes in solvent nucleophilicity (l) and solvent ionizing power (m) obtained, are similar to those previously observed for phenyl chloroformate (2) and p-methoxyp...
متن کاملCorrrelation of the Specific Rates of Solvolysis of Ethyl Fluoroformate Using the Extended Grunwald-Winstein Equation
The specific rates of solvolysis of ethyl fluoroformate have been measured at 24.2 degrees C in 21 pure and binary solvents. These give a satisfactory correlation over the full range of solvents when the extended Grunwald-Winstein equation is applied. The sensitivities to changes in the N(T) solvent nucleophilicity scale and the Y(Cl) solvent ionizing power scale, and the k(F)/k(Cl) values are ...
متن کاملDetailed Analysis for the Solvolysis of Isopropenyl Chloroformate.
The specific rates of solvolysis (including those obtained from the literature) of isopropenyl chloroformate (1) are analyzed using the extended Grunwald-Winstein equation, involving the N(T) scale of solvent nucleophilicity (S-methyldibenzothiophenium ion) combined with a Y(Cl) scale based on 1-adamantyl chloride solvolysis. A similarity model approach, using phenyl chloroformate solvolyses fo...
متن کاملAnalysis of the Nucleophilic Solvation Effects in Isopropyl Chlorothioformate Solvolysis
Correlation of the solvent effects through application of the extended Grunwald-Winstein equation to the solvolysis of isopropyl chlorothioformate results in a sensitivity value of 0.38 towards changes in solvent nucleophilicity (l) and a sensitivity value of 0.72 towards changes in solvent ionizing power (m). This tangible l value coupled with the negative entropies of activation observed indi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Molecular Sciences
سال: 2009
ISSN: 1422-0067
DOI: 10.3390/ijms10030862