2000
DOI: 10.1002/chin.200041026
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ChemInform Abstract: Catalysis by Lithium Cation: Lithium Trifluoromethanesulfonate as a Substitute for Lithium Perchlorate in Cycloadditions.

Abstract: ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

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Cited by 2 publications
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“…There have been extensive studies of the catalytic effects of Li + ions on the Diels–Alder [4 + 2] cycloadditions as well as [2 + 2] cycloadditions and a range of other important reactions, including aldol reactions, Michael reactions, Alder–ene reactions, sigmatropic rearrangements, and Mannich reactions, Lithium perchlorate in diethyl ether has been widely used but other salts, such as lithium trifluoromethanesulfonate and trifluoromethane sulfonimide in solvents such as acetone and acetonitrile, have also been explored. , In the context of on-water chemistry, it is of particular interest to explore the presence of H + and the related charge intensive Li + ion as additives in the aqueous layer. In Table are shown the results of adding low to high concentrations of HClO 4 and LiClO 4 to the on-water and in-water reactions in Scheme .…”
Section: Resultsmentioning
confidence: 99%
“…There have been extensive studies of the catalytic effects of Li + ions on the Diels–Alder [4 + 2] cycloadditions as well as [2 + 2] cycloadditions and a range of other important reactions, including aldol reactions, Michael reactions, Alder–ene reactions, sigmatropic rearrangements, and Mannich reactions, Lithium perchlorate in diethyl ether has been widely used but other salts, such as lithium trifluoromethanesulfonate and trifluoromethane sulfonimide in solvents such as acetone and acetonitrile, have also been explored. , In the context of on-water chemistry, it is of particular interest to explore the presence of H + and the related charge intensive Li + ion as additives in the aqueous layer. In Table are shown the results of adding low to high concentrations of HClO 4 and LiClO 4 to the on-water and in-water reactions in Scheme .…”
Section: Resultsmentioning
confidence: 99%
“…Our reaction design involves the aromatic “redox tag” concept, in which an aromatic ring provides both the oxidant and the reductant in the overall net redox neutral carbon–carbon bond formation reaction. In most cases, the use of LiClO 4 /CH 3 NO 2 electrolyte solution is critical because it exhibits remarkable Lewis acidity, which facilitates the reactions of carbon-centered radical cations with carbon nucleophiles, even unactivated alkenes . Our reaction development is also characterized by the importance of an intramolecular SET process that has recently been presented by Melchiorre as an elegant “electron relay” mechanism .…”
Section: Introductionmentioning
confidence: 99%