Trapping of oxonium ylide with isatins: efficient and stereoselective construction of adjacent quaternary carbon centers

Org Lett. 2007 Nov 8;9(23):4721-3. doi: 10.1021/ol7019857. Epub 2007 Oct 11.

Abstract

The 3-substituted 3-hydroxyindolin-2-ones with adjacent quaternary stereocenters were constructed in a single step via an efficient and stereoselective trapping of oxonium ylide with isatins. This reaction proceeds well in supercritical CO2 and is an example of the ability to use green approaches to efficiently construct polyfunctional molecules.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aldehydes / chemistry
  • Carbon / chemistry*
  • Crystallography, X-Ray
  • Hydroxylation
  • Imines / chemistry
  • Isatin / chemistry*
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Structure
  • Oxazines / chemistry*
  • Peptides, Cyclic / chemistry
  • Stereoisomerism

Substances

  • Aldehydes
  • Imines
  • Oxazines
  • Peptides, Cyclic
  • TMC-95C
  • Carbon
  • Isatin