Environmentally benign synthesis of 1,8-dioxooctahydroxanthene derivatives using 10-molybdo-2-vanadophosphoric acid as an efficient and reusable catalyst under solvent-free condition Laxmikant D. Chavan, Bhagwat B. Nagolkar, Trimbak K. Chondhekar, Sunil G. Shankarwar, XML Requires Subscription HTML Requires Subscription PDF views: 16 downloads: 176