1. Department of Chemistry National Institute of Technology Jamshedpur Jamshedpur 831014 India
2. Organocatalysis and Synthesis Laboratory Department of Chemistry National Institute of Technology Rourkela Orissa 769008 India
3. Department of Organic Synthesis & Process Chemistry CSIR-Indian Institute of Chemical Technology Hyderabad, 5 00007 India
4. Department of Chemistry Bidhannagar college West Bengal State University Kolkata India