Open AccessEfficient Catalytic Performance of Calcined Tungstophosphoric Acid for the Claisen-Schmidt Condensation under Solvent-Free Reaction
Author(s) -
Abdulrahman I. Alharthi
Publication year - 2019
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2019.22219
Subject(s) - chemistry , calcination , chalcone , catalysis , yield (engineering) , acetophenone , schmidt reaction , claisen condensation , condensation reaction , organic chemistry , condensation , solvent , nuclear chemistry , materials science , physics , metallurgy , thermodynamics
Effect of calcination of tungstophosphoric acid catalyst was evaluated in terms of the synthesis of chalcone derivatives via Claisen-Schmidt condensation using the reaction of acetophenone and several substituted aldehydes. The catalyst was characterized before and after calcination by FT-IR to assess the effectiveness of the synthesis of the desired products. The calcined tungstophosphoric acid catalyst (HPW-CL) showed a better performance and high yield of Claisen-Schmidt products in a short period of time. It was also found out that the calcined tungstophosphoric acid provides a chemo selective,efficient and environmentally benign synthesis of chalcone in an excellent yield in a solvent-free system.