TY - GENERIC DO - 10.20944/preprints201809.0349.v1 UR - http://dx.doi.org/10.20944/preprints201809.0349.v1 TI - One-Pot Synthesis of Coumarins Unsubstituted on the Pyranic Nucleus Catalysed by a Wells–Dawson Heteropolyacid (H6P2W18O62) T2 - Preprints AU - Sun, Yu-Feng AU - Liu, Jia-Meng AU - Sun, Jing AU - Huang, Ya-Tao AU - Lu, Jia AU - Li, Min-Min AU - Jin, Nuo AU - Dai, Xiao-Feng AU - Fan, Bei PY - 2018 DA - 2018/09/18 PB - Preprints