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Anilinolysis of Picryl Benzoate Derivatives in Methanol: Reactivity, Regioselectivity, Kinetics, and Mechanism
作者:Mahmoud F. Ibrahim、Mohamed A. El-Atawy、Samir K. El-Sadany、Ezzat A. Hamed
DOI:10.1002/kin.20779
日期:2013.9
The reaction of picryl benzoate derivatives 1a–g with aniline in methanol proceeds through COO and ArO bond cleavage pathways. Furthermore, the reactivity of these esters toward anilinolysis is correlated to the energy gap between highest occupied molecular orbital aniline and lowest unoccupied molecular orbital of each ester. The regioselectivity of acyloxygen versus aryloxygen cleavage is also
甲醇中苯甲酸吡啶酯衍生物1a–g与苯胺在甲醇中的反应通过COO和ArO键的裂解途径进行。此外,这些酯对苯胺分解的反应性与每个酯的最高占据分子轨道苯胺和最低未占据分子轨道之间的能隙相关。还讨论了酰基氧对芳基氧裂解的区域选择性。整体速率常数ķ TOT分成ķ CO Ô(酰基-氧裂解速率常数)和ķ氩 Ò(芳基氧裂解速率常数)。该CO 通过逐步机制O键裂解的进步,其中所述四面体中间体的形成是限速步骤。上述Ar O键裂解继续通过A S Ñ其中所述离去基团从所述迈森海梅复杂离开其在速率决定步骤形成后迅速发生的Ar机制。
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Nurgatin, V. V.; Sharnin, G. P.; Nurgatina, R. B., Journal of Organic Chemistry USSR (English Translation), 1985, vol. 21, # 2, p. 306 - 309
作者:Nurgatin, V. V.、Sharnin, G. P.、Nurgatina, R. B.、Ginzburg, B. M.
DOI:——
日期:——
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Smagowski, Henryk; Bartnicka, Halina, Polish Journal of Chemistry, 1990, vol. 64, # 1-6, p. 201 - 209
作者:Smagowski, Henryk、Bartnicka, Halina
DOI:——
日期:——
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Lasinska, Ewa; Korewa, Ryszard; Nesterowicz, Marianna, Polish Journal of Chemistry, 1987, vol. 61, # 4-6, p. 613 - 620
作者:Lasinska, Ewa、Korewa, Ryszard、Nesterowicz, Marianna
DOI:——
日期:——
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Wessely; John, Monatshefte fur Chemie, 1927, vol. 48, p. 6
作者:Wessely、John
DOI:——
日期:——