Overcoming product inhibition in catalysis of the intramolecular Schmidt reaction

J Am Chem Soc. 2013 Jun 19;135(24):9000-9. doi: 10.1021/ja402848c. Epub 2013 Jun 7.

Abstract

A method for carrying out the intramolecular Schmidt reaction of alkyl azides and ketones using a substoichiometric amount of catalyst is reported. Following extensive screening, the use of the strong hydrogen-bond-donating solvent hexafluoro-2-propanol was found to be consistent with low catalyst loadings, which ranged from 2.5 mol % for favorable substrates to 25 mol % for more difficult cases. Reaction optimization, broad substrate scope, and preliminary mechanistic studies of this improved version of the reaction are described.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkanes / chemistry*
  • Azides / chemistry*
  • Catalysis
  • Hydrogen Bonding
  • Ketones / chemistry*
  • Solvents / chemistry

Substances

  • Alkanes
  • Azides
  • Ketones
  • Solvents