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- W1538775424 abstract "In this work, three speculative mechanisms of the reaction between triphenylphosphine and dimethyl acetylendicarboxylate in the presence of 3-chloropentane-2,4-dione were energetically and thermodynamically developed using quantum mechanical calculations and were profoundly compared with stopped-flow and UV spectrophotometry approaches. The third speculative mechanism that led to the five-membered ring structure was experimentally and theoretically favorable. The five-membered ring structure of product was characterized by X-ray crystallographic data. Also, steps 1 and 2 of the third mechanism were determined as fast and rate-determining steps, respectively. The experimental kinetic evidence of the formation and decay of intermediate in steps 1 and 2 (fast and rate-determining steps, respectively) was compatible with theoretical data. Experimental kinetic data were recognized for overall reaction along with activation parameters for fast and rate-determining steps of the reaction. Theoretical kinetic data (k and Ea) and activation parameters (ΔG≠, ΔS,≠ and ΔH≠) were calculated for each step and overall reactions." @default.
- W1538775424 created "2016-06-24" @default.
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- W1538775424 date "2013-07-24" @default.
- W1538775424 modified "2023-09-27" @default.
- W1538775424 title "Kinetic and Mechanistic Insights into the Pathway Leading to Cyclic Crystalline Phosphorus Ylide Formation in the Presence of 3-Chloropentane-2,4-dione: Theoretical and Stopped-Flow Approaches" @default.
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- W1538775424 doi "https://doi.org/10.1002/kin.20797" @default.
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