ChemInform Abstract: Polyfunctional Pyrazoles. Part 7. Ethyl 1‐Aryl‐4‐formylpyrazole‐3‐carboxylates in the Synthesis of 2‐Aryl‐2, 4‐dihydro‐6H‐thieno[3, 4‐c]pyrazol‐6‐ones. Issue 27 (13th June 2013) - Bratenko, M. K.; Barus, M. M.; Vovk, M. V.