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Cited by 14 publications
(19 citation statements)
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“…This result suggested that cyclopropyl ring protected the C ring from aromatization and provided a potential double bond. The full C ring configuration of compound 12 was confirmed by 1 H, 13 C NMR and further X-ray crystallography ( Figure 2). 9 With ketone 12 in hand, we explored a way to open the three-member ring.…”
mentioning
confidence: 81%
“…This result suggested that cyclopropyl ring protected the C ring from aromatization and provided a potential double bond. The full C ring configuration of compound 12 was confirmed by 1 H, 13 C NMR and further X-ray crystallography ( Figure 2). 9 With ketone 12 in hand, we explored a way to open the three-member ring.…”
mentioning
confidence: 81%
“…In an attempt to avoid emulsion formation, some reactions were performed using hexane as solvent, but the reactivity fell down significantly reaching a maximum of 23% of conversion. The better result obtained when dichloromethane was used as solvent can be explained by the fact that this solvent stabilizes the intermediate compound, decreasing the activation energy and, consequently, increasing the reaction rate (von Holleben, 2001).…”
Section: Resultsmentioning
confidence: 99%
“…(Payne, 1961a, b;von Holleben, 1997von Holleben, , 2001). In the first step of the reaction mechanism, the nitrile and hydrogen peroxide react in mild alkaline medium leading to the formation of peroxycarboxymidic acid, which is a highly reactive species.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Both these methods are hazardous and show poor selectivity for styrene epoxide and produce copious amount of undesirable wastes, leading to disposal problem of toxic solid and liquid wastes. Since last few decades Payne epoxidation system [14] have been enormously used [15], this system operates via Radziszewski reaction in which hydrolysis of an organic nitrile by alkaline hydrogen peroxide occurs via peroxycarboximidic acid intermediate leading to end products amide, water and oxygen. The presence of olefin in this reaction mixture acts as a better reducing agent and potentially eliminates the hydrolysis of the intermediate with hydrogen peroxide thereby accomplishing epoxidation of the olefin.…”
Section: Introductionmentioning
confidence: 99%