1962
DOI: 10.1002/jlac.19626580115
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1.3‐Dipolare Additionen, III. Umsetzungen des Diphenylnitrilimins mit Carbonyl und Thiocarbonyl‐Verbindungen

Abstract: Diphenylnitrilimin, welches in situ aus Benz-phenylhydrazid-chlorid und Triathylamin oder aus 2.5-Diphenyl-tetrazol bei 160 -170" freigesebt wird, geht 1.3-dipolare Additionen mit Aldehyden oder aktivierten Ketonen unter Bildung von 2.3-Dihydro-1.3.4-oxadiazolen ein. Thioketone, Schwefelkohlenstoff, Thion-urethane, Thion-amide, Thion-carbonester und Isothiocyanate verrn6gen das Nitrilimin an der CS-Doppelbindung aufzunehmen. Auch die NS-Doppelbindung des Thionylanilins addiert den 1.3-Dipol.Nitrilirnine lassen… Show more

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Cited by 130 publications
(46 citation statements)
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“…Alternatively, 1,3-dipolar cycloaddition of nitrilimine 9a [prepared in situ from 8a with triethylamine] to the C=S double bond of 5 could also lead to 10. The formation of 11 and 12 are similar to the previously reported reactions of hydrazonoyl chloride with 1-phenyl-1,4-dihydrotetrazole-5-thione [40] and 5-phenyl-1,3,4-thiadiazole-2(3H)-thione [41]. Another possible product, 1-(5-(3-(1H-indol-3-yl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazol-1-yl)-5-amino-4-phenyl-4,5-dihydro-1,3,4-thiadiazol-2-yl)ethan-1-one (13), was ruled out by elemental analysis and spectral data.…”
Section: Chemistrysupporting
confidence: 87%
“…Alternatively, 1,3-dipolar cycloaddition of nitrilimine 9a [prepared in situ from 8a with triethylamine] to the C=S double bond of 5 could also lead to 10. The formation of 11 and 12 are similar to the previously reported reactions of hydrazonoyl chloride with 1-phenyl-1,4-dihydrotetrazole-5-thione [40] and 5-phenyl-1,3,4-thiadiazole-2(3H)-thione [41]. Another possible product, 1-(5-(3-(1H-indol-3-yl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazol-1-yl)-5-amino-4-phenyl-4,5-dihydro-1,3,4-thiadiazol-2-yl)ethan-1-one (13), was ruled out by elemental analysis and spectral data.…”
Section: Chemistrysupporting
confidence: 87%
“…444,445 There is a considerable rate enhancement for azide ion attack on coordinated vs free organonitrile. 444 The 447 between diphenylnitrilimine 214 and carbon disulfide. Organic thiocarbonyl compounds, e.g., thioketones, thioesters, or thioamides, easily add to 1,3-dipoles.…”
Section: Scheme 29mentioning
confidence: 99%
“…Bis(trifluormethyl)substituierte Nitril-ylide (2) nehmen damit N-Sulfinylanilin mit gleichem Orientierungssinn wie Nitrilimine [21] und Nitriloxide [22] auf. Cycloadditionen von fluorfreien Nitrilyliden an N-Sulfinylanilin sind nicht beschrieben.…”
Section: -0unclassified
“…Aus den Produktgemischen, die bei der Thermolyse von 2.2.2-Trimethoxy-3.3-bis(trifluormethyl)-2.2-dihydro-1.4.2-oxazaphosphol-4-enen (1) Diphenylnitrilimin [21,37] und Benzonitrilisopropylid [38] …”
Section: Abfangreaktionen Mit Schwefelkohlenstoßunclassified
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