Tetrabutylammonium Bromide in Water as a Green Media for the Synthesis of Pyrano2,3-dpyrimidinone and Tetrahydrobenzobpyran Derivatives

摘要

Tetrabutylammonium bromide (TBAB) was used as a green catalyst for the synthesis of tetrahydrobenzobpyran and pyrano2,3-d pyrimidinone derivatives in water as a solvent. Use of nontoxic reaction components, short reaction times, easy work-up and high yields are some important advantages of this method.