Von Braun reaction

Von Braun reaction

The Von Braun reaction is an organic reaction in which a tertiary amine reacts with cyanogen bromide to an organocyanamide [Von Braun, Heider, and Muller, Ber., 51, 281 (1918).] . An example is the reaction of "dimethyl-α-naphthylamine" [Organic Syntheses, Coll. Vol. 3, p.608 (1955); Vol. 27, p.56 (1947). http://www.orgsynth.org/orgsyn/pdfs/CV3P0608.pdf] :

The reaction mechanism consists of two nucleophilic substitutions: the amine is the first nucleophile displacing the bromine atom which then acts as the second nucleophile [JerryMarch] .

ee also

* Von Braun amide degradation

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Von Braun — may refer to:*Wernher von Braun (1912 1977), the influential rocket scientist * Sigismund von Braun (1911 1998), German diplomat, Wernher s brother * Magnus von Braun (1919 2003), Chrysler Europe executive, Wernher s brother * Magnus Freiherr von …   Wikipedia

  • Von Braun amide degradation — The von Braun amide degradation is the chemical reaction of a monosubstituted amide with phosphorus pentachloride to give a nitrile and an organohalide. [cite journal title = Ueber die Spaltung des Benzenylmethylimidchlorids author = Hans von… …   Wikipedia

  • Rosenmund-von Braun synthesis — The Rosenmund von Braun synthesis is an organic reaction in which an aryl halide reacts with cuprous cyanide to an aryl nitrile.cite journal title = Das am Ringkohlenstoff gebundene Halogen und sein Ersatz durch andere Substituenten. I.… …   Wikipedia

  • Wernher von Braun — Von Braun at his desk at Marshall Space Flight Center in May 1964, with models of the Saturn rocket family Born March 23, 1912(1912 03 23) Wirsitz, German Empire …   Wikipedia

  • Moteur à réaction — Pour les articles homonymes, voir Réacteur. Un moteur à réaction est un moteur destiné à la propulsion de véhicule. Le principe de base repose sur la projection d un fluide (gaz ou liquide) vers l arrière, par réaction, il transmet une poussée au …   Wikipédia en Français

  • Franz von Papen — Infobox Chancellor name=Franz von Papen order=22nd Chancellor of the German Reich 13th Chancellor of the Weimar Republic president=Paul von Hindenburg term start =1 June term end =17 November 1932 predecessor =Heinrich Brüning successor =Kurt von …   Wikipedia

  • Kurt von Schleicher — Mandats 23e chancelier d Allemagne …   Wikipédia en Français

  • Count Friedrich Ferdinand von Beust — Friedrich Ferdinand Graf von Beust Count Beust in 1873 1st Chairman of the Ministers Council for Common Affairs of Austria Hungary …   Wikipedia

  • Contemporary reaction to Ignaz Semmelweis — Dr. Ignaz Semmelweis discovered in 1847 that hand washing with a solution of chlorinated lime reduced the incidence of fatal childbed fever tenfold in maternity institutions. However, the reaction of his contemporaries was not positive; his… …   Wikipedia

  • List of organic reactions — Well known reactions and reagents in organic chemistry include Contents: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z    See also   Ext …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”