Abdulkarim M. A. Al-Kadasi

Silica Ammonium Acetate as an Efficient and Recyclable Heterogeneous Catalyst for Synthesis of 4H-pyran Derivatives under Ultrasound Irradiation at Ambient Conditions

Abdulkarim M. A. Al-Kadasi, Hassan A. Osman & G. M. Nazeruddin · Chemical Science International Journal · 2014

A simple, versatile and efficient method has been developed for the synthesis of 4H-pyran derivatives 4a-k via a three-component cyclocondensation of aldehydes, malononitrile and ethyl acetoacetate under heterogeneous conditions using silica supported ammonium acetate as the recy...