Mohammad Darvishipaduk - Department of chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
Jalal Albadi - Khatam Alanbi Behbahan University of Technology, Behbahan, Iran

Poly(4-vinyl pyridine) is reported as a green, commercial available and efficient basic recyclable catalyst for the synthesis of chromene derivatives. This catalyst can be easily recovered by simple filtration and recycled up to 5 consecutive runs without any loss of its efficiency

Poly(4-vinylpyridine), chromene, resorccinole, malononitrile