The Tishchenko reaction is a organic chemical reaction that involves disproportionation of an aldehyde lacking a hydrogen atom in the alpha position in the presence of an alkoxide.[1] The reaction product is an ester. Catalysts are aluminium alkoxides or sodium alkoxides.

In the related Cannizzaro reaction the base is sodium hydroxide and then the oxidation product is a carboxylic acid and the reduction product is an alcohol.

Examples

The Tishchenko reaction: benzaldehyde reacts to benzyl benzoate, the catalyst is generated in situ from sodium and benzyl alcohol
The Tishchenko reaction: benzaldehyde reacts to benzyl benzoate, the catalyst is generated in situ from sodium and benzyl alcohol
The Tishchenko reaction: reaction mechanism
The Tishchenko reaction: reaction mechanism

Related reactions

References

  1. ^ V. Tishchenko (1908), J. Russ. Phys. Chem. Soc, 38: 355, 482 ((citation)): Missing or empty |title= (help)
  2. ^ Kamm, O.; Kamm, W. F. (1941). "Benzyl benzoate". Organic Syntheses((cite journal)): CS1 maint: multiple names: authors list (link); Collected Volumes, vol. 1, p. 104.
  3. ^ Marc Eckert, Gerald Fleischmann, Reinhard Jira, Hermann M. Bolt, Klaus Golka (2007), "Acetaldehyde", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, p. 4((citation)): CS1 maint: multiple names: authors list (link)
  4. ^ Boy Cornils, Richard W. Fischer, Christian Kohlpaintner (2007), "Butanals", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, p. 4((citation)): CS1 maint: multiple names: authors list (link)
  5. ^ Peter Werle, Marcus Morawietz (2007), "Alcohols, Polyhydric", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, p. 6
  6. ^ Günther Reuss, Walter Disteldorf, Armin Otto Gamer, Albrecht Hilt (2007), "Formaldehyde", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, p. 5((citation)): CS1 maint: multiple names: authors list (link)
  7. ^ Paul R. Stapp (1973). "Boric acid catalyzed Tishchenko reactions". J. Org. Chem. 38 (7): 1433–1434. doi:10.1021/jo00947a049.