1960
DOI: 10.1002/ange.19600722406
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Die Reaktion von Cyanurchlorid mit Dimethylformamid

Abstract: Cyanurchlorid reagiert bei Raumtemperatur mit Dimethylformamid unter Bildung einer Additionsverbindung vom Vilsmeier‐Haak‐Typ. Bei der weiteren Umsetzung mit Dimethylformamid entstehen aus dieser Additionsverbindung unter Eliminierung von 3 Mol CO2 und Spaltung des Cyanurringes 3 Mol des bisher unbekannten 3‐Dimethylamino‐2‐azaprop‐2‐en‐1‐ylidendimethylammoniumchlorids, , das als Azaisologes des zuerst von W. T. Simpson dargestellten N‐Methyl‐[2]‐dimethylaminovinyl)‐formimin‐methojodids , aufzufassen ist. Die … Show more

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Cited by 92 publications
(17 citation statements)
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“…All of the chemical structures (especially B and C ) can act as amidating agents 13. It should be mentioned that the chemical structures proposed for this reagent are formed at room temperature and there are other suggested structures for higher temperatures 13a,14. In this study, the formed reagent at room temperature was characterized by using 1 H NMR, 13 C NMR, and FTIR spectroscopy.…”
Section: Resultsmentioning
confidence: 96%
“…All of the chemical structures (especially B and C ) can act as amidating agents 13. It should be mentioned that the chemical structures proposed for this reagent are formed at room temperature and there are other suggested structures for higher temperatures 13a,14. In this study, the formed reagent at room temperature was characterized by using 1 H NMR, 13 C NMR, and FTIR spectroscopy.…”
Section: Resultsmentioning
confidence: 96%
“…Die hohe Strukturflexibilitit macht es schwer, allen diesen Kationen definierte Strukturen und konkrete Namen zuzuweisen. In der Serie der Amino-substituierten 2-Aza-allenium-Sake wurden ahnliche Beobachtungen gemacht 14,18).…”
Section: Quantenmechanische Berechnungenunclassified
“…The original synthesis utilised amide 1 , 3 which requires pre-preparation due to a lack of commercial availability and Gold’s reagent ([3-(dimethylamino)-2-azaprop-2-en-1-ylidene]dimethylammonium chloride) to directly construct 3 (Scheme 1). 4, 5, 6 More recent patents have avoided the use of Gold’s reagent and proceeded via benzoic acid 2 ; however, this still involves progression through multiple protection and deprotection steps 4 . The current work reports a new and improved synthesis of Vandetanib, avoiding quinazolinone 3 and utilising the Dimroth rearrangement for a streamlined synthetic procedure 7, 8, 9, 10…”
Section: Introductionmentioning
confidence: 99%