Details

Autor(en) / Beteiligte

• Kalaria, Piyush N.
• Satasia, Shailesh P.
• Purohit, Vishal B.
• Avalani, Jemin R.
• Sapariya, Nirav H.
• Raval, Dipak K.

Titel

Microwave-Assisted Solvent-Free Rapid Synthesis of 4-Methyl Coumarin Derivatives by Using Silica functionalized-SO3H as an Effective Heterogeneous Catalyst

Ist Teil von

• Polycyclic aromatic compounds, 2021-07, Vol.41 (6), p.1212-1222

Ort / Verlag

Philadelphia: Taylor & Francis

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Taylor & Francis Journals Auto-Holdings Collection

Beschreibungen/Notizen

• A novel silica gel functionalized-SO 3 H as a heterogeneous catalyst was prepared and characterized by FT-IR, XRD, TGA and elemental analysis. It has been studied for microwave-assisted solvent-free Pechmann condensation. The result revealed that 20% w/w silica bonded 3-mercapto propyl diethylene diamine N-sulfamic acid (SMPDDSA) was found to be effective. 4-methyl coumarin derivatives were the only product obtained in good to excellent yield (75-94%). The present protocol accomplishes the reaction in much lesser time as compared to the conventional method.