Development of a New Route to 3-(Difluoromethyl)-1-methyl- 1H-pyrazole-4-carboxylic Acid (DFPA) - A Key Building Block for Novel Fungicides. - Yosuke Ochi; Yuichiro Ishibashi; Masanori Sawaguchi; Satoshi Kawaguchi; Noriaki Miyake; Yusuke Yamazaki; Shota Shimizu (Synlett, 2018)