Mechanism of Acid Hydrolysis of Imidazolines

Limatibul, Sumet; Watson, Joseph W.

doi:10.1021/jo00823a600

Cited by 10 publications

(2 citation statements)

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“…Limatibul and Watson (15) based their mechanism on earlier work by Haake and Watson (16). Limatibul and Watson (15) based their mechanism on earlier work by Haake and Watson (16).…”

Section: Different Temperaturesmentioning

confidence: 99%

Imidazoline hydrolysis in alkaline and acidic media—A review

Watts¹

1990

J Americ Oil Chem Soc

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The literature was reviewed for information on imidazoline hydrolysis. Conflicts involving structures and mechanisms of hydrolysis have been found. Researchers also disagree as to the role of water and whether a protonated form of the imidazoline exists. However, there is agreement that the rate of hydrolysis is dependent on pH and temperature.KEY WORDS: Imidazoline hydrolysis, kinetics of imidazoline hydrolysis, review of imidazoline hydrolysis.

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“…Limatibul and Watson (15) based their mechanism on earlier work by Haake and Watson (16). Limatibul and Watson (15) based their mechanism on earlier work by Haake and Watson (16).…”

Section: Different Temperaturesmentioning

confidence: 99%

Imidazoline hydrolysis in alkaline and acidic media—A review

Watts¹

1990

J Americ Oil Chem Soc

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“…Thirty of those 136 compounds unique to the AeMP were tentatively identifiable and are listed in Table S17. Benzene, 1-azido-3methoxy-, which has been reported in the synthesis chemistry literature, 50 was the most abundant newly formed compound among the 30 compounds unique to the AeMP. The secondmost abundant newly formed compound in the AeMP was 5acetyl-4-methylthiazole, which has been identified as a metabolite of the pharmaceutical, chlormethiazole.…”

Section: Comparison Of Aembr and Anmbr Torc Treatment At Various Remo...mentioning

confidence: 96%

Comparison of Trace Organic Chemical Removal Efficiencies between Aerobic and Anaerobic Membrane Bioreactors Treating Municipal Wastewater

Johnson,

Dodder,

Mladenov

et al. 2024

ACS EST Water

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Evaluating persistent trace organic chemicals (TOrCs) and transformation products (TPs) in membrane bioreactors (MBRs) is essential, given that MBRs are now widely implemented for wastewater treatment and water reuse. This research applied comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC/TOF-MS)-based nontargeted analysis to compare the effectiveness of parallel aerobic and anaerobic MBRs (AeMBRs and AnMBRs, respectively), treating the same municipal wastewater. The average total chromatographic feature peak area abundances were significantly reduced by 84% and 72% from influent to membrane permeate in both the AeMBR and AnMBR (p < 0.05), respectively. However, the reduction of the average number of chromatographic features was significant for only AeMBR treatment (p = 0.006). A similar number of TPs were generated during both AeMBR and AnMBR treatments (165 vs 171 compounds, respectively). The overall results suggest that the AeMBR was more effective for reducing the diversity of TOrCs than the AnMBR, but both aerobic and anaerobic processes had a similar reduction of TOrC abundance. Suspect screening analysis using GC×GC/ TOF-MS, which resulted in the tentative identification of 351 TOrCs, proved to be a powerful approach for uncovering compounds previously unreported in wastewater, including many fragrances and personal care products.

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