Mechanistic Rationalization of Unusual Sigmoidal Kinetic Profiles in the Machetti–De Sarlo Cycloaddition Reaction
作者:Matthew P. Mower、Donna G. Blackmond
DOI:10.1021/ja512753v
日期:2015.2.18
Unusual sigmoidal kineticprofiles in the Machetti-De Sarlo base-catalyzed 1,3-dipolar cycloaddition of acrylamide to N-methylnitroacetamide are rationalized by detailed in situ kinetic analysis. A dual role is uncovered in which a substrate acts as a precursor to catalyze its own reaction. Such kinetic studies provide a general protocol for distinguishing among different mechanistic origins of induction
通过详细的原位动力学分析,Machetti-De Sarlo 碱催化的丙烯酰胺向 N-甲基硝基乙酰胺的 1,3-偶极环加成反应中异常的 S 形动力学曲线得以合理化。揭示了一种双重作用,其中底物充当催化其自身反应的前体。这种动力学研究提供了一个通用协议,用于区分复杂有机反应中诱导期的不同机械起源。
A Practical Synthesis of<i>N</i>-Hydroxy-α-amino Acid Derivatives
作者:Marian W. Tijhuis、Jacobus D. M. Herscheid、Harry C. J. Ottenheijm