Zeolitization of fly ash for synthesis of pharmaceutically important bis(indolyl)methane derivatives

Key Points

• The synthesis of bis(indolyl)methane derivatives occurs using the zeolite catalyst.
• The zeolite catalyst was successfully created from industrial fly ash waste.
• This work demonstrates the feasibility of a sustainable approach using acid-modified zeolite for synthesis.
• Using waste materials like fly ash for catalyst production could enhance environmentally friendly practices.