Propane-1,2-diols from dilactides, oligolactides, or poly-L-lactic acid (PLLA): from plastic waste to chiral bulk chemicals

Chemistry. 2014 Jan 20;20(4):957-60. doi: 10.1002/chem.201302004. Epub 2014 Jan 8.

Abstract

The preparation of racemic or enantioenriched propane-1,2-diol from dilactides, oligolactides, or poly-L-lactic acid (PLLA) is described. The transformation is carried out as tandem reactions in MeOH, covering hydrolysis and subsequent hydrogenation by using copper chromite as a catalyst. The starting material present undesired side products of the PLLA synthesis or PLLA waste.

Keywords: hydrogenation; lactides; propane-1,2-diol; synthetic methods; tandem reactions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Dioxanes / chemistry*
  • Hydrogenation
  • Hydrolysis
  • Lactic Acid / chemistry*
  • Plastics / chemistry*
  • Polyesters
  • Polymers / chemistry*
  • Propylene Glycol / chemical synthesis*

Substances

  • Dioxanes
  • Plastics
  • Polyesters
  • Polymers
  • Lactic Acid
  • poly(lactide)
  • Propylene Glycol
  • dilactide