title: Bismuth nitrate-induced microwave-assisted expeditious synthesis of vanillin from curcumin.
abstract: BACKGROUND
  Curcumin and vanillin are the two useful compounds in food and medicine. Bismuth nitrate pentahydrate is an economical and ecofriendly reagent.
  
  
  METHODS
  Bismuth nitrate pentahydrate impregnated montmorillonite KSF clay and curcumin were subjected to microwave irradiation.
  
  
  RESULTS
  Microwave-induced bismuth nitrate-promoted synthesis of vanillin from curcumin has been accomplished in good yield under solvent-free condition. Twenty-five different reaction conditions have been studied to optimize the process.
  
  
  CONCLUSIONS
  The present procedure for the synthesis of vanillin may find useful application in the area of industrial process development.
authors.affiliation: Department of Chemistry, The University of Texas-Pan American, 1201 West University Drive, Edinburg, TX 78539, USA. banik@utpa.edu.
authors.forename: Debasish
authors.initials: D
authors.lastname: Bandyopadhyay
authors.forename: Bimal K
authors.initials: BK
authors.lastname: Banik