2018
DOI: 10.1002/jsde.12226
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Flexible Semicrown Ether‐Linked Symmetric Cationic Gemini Surfactants: Synthesis and Evaluation as Catalysts for Acceleration of Diastereoselective [3 + 2] Cycloaddition Reaction in Reversed Phase Micellar Media

Abstract: Novel cationic gemini surfactants with a hydrophilic oligo-oxyethylene spacer group were synthesized and their physicochemical properties were identified. Computational studies for these compounds were also performed; molecular geometry, frontier molecular orbitals, and quantum chemical parameters were calculated using density functional theory (DFT). After exploration for catalytic activity, it was found that these surfactants can efficaciously accelerate the [3 + 2] cycloaddition reactions in reversed phase … Show more

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Cited by 13 publications
(4 citation statements)
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“…The π CMC parameter given in Table 4 is defined as the efficiency in the reduction of surface tension and indicates the amount of reduction in surface pressure obtained in CMC (Öztürk et al, 2019). With this value calculated with the formula given in Equation (), the effectiveness of the surfactant in reducing the surface tension of water is evaluated (Rosen, 1989).…”
Section: Resultsmentioning
confidence: 99%
“…The π CMC parameter given in Table 4 is defined as the efficiency in the reduction of surface tension and indicates the amount of reduction in surface pressure obtained in CMC (Öztürk et al, 2019). With this value calculated with the formula given in Equation (), the effectiveness of the surfactant in reducing the surface tension of water is evaluated (Rosen, 1989).…”
Section: Resultsmentioning
confidence: 99%
“…Tablo 5'te verilmiş olan πcmc parametresi yüzey gerilimi azalmasındaki etkinlik olarak tanımlanır ve KMK'da elde edilen yüzey basıncındaki azalma miktarını belirtmektedir [34]. Eşitlik 4'te verilen formülle hesaplanan bu değer ile, yüzey aktif maddenin, suyun yüzey gerilimini düşürmedeki etkinliği değerlendirilir [35].…”
Section: şEkil 3 Konsantrasyona Karşı öLçülen Iletkenlik Değeri Grafi...unclassified
“…The surface tension was measured to evaluate the surface activity of the aqueous solution of the surfactant at cmc with a capillary rise method in accordance (32,33). The effectiveness in surface tension reduction (πcmc) is the amount of reduction in surface pressure attained at the cmc (38). It is defined by using the following equation:…”
Section: ∆ G M I C =Rt X L N ( Cm C )mentioning
confidence: 99%