1. Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Suzhou University, Renai Road, Suzhou, Jiangsu 215123, China;2. Tel.: 0086‐0512‐65880086;3. Fax: 0086‐0512‐65880307
Abstract:
A highly effective Meldrum's acid catalyzed synthesis of bis(indol‐3‐yl)methanes has been developed. This reaction provides the corresponding bis(indol‐3‐yl)methanes in high yields after short reaction time in the presence of 2 mol % catalyst in water under ultrasonic condition.