作者:Meng Tang、Fu-Min Zhang
DOI:10.1016/j.tet.2012.12.038
日期:2013.2
An efficient, one-pot synthesis of substituted pyrazoles from enones, hydrazides, and halides was developed. In comparison with the classical Knorr pyrazole synthesis, this methodology gave a different type of product (R3≥R5). A range of substituted pyrazoles were prepared in good to high yields with complete regioselectivity.
从烯酮,酰肼和卤化物开始高效,一锅法合成取代的吡唑。与经典克诺尔吡唑合成相比,该方法给了一个不同类型的产品(R 3 ≥R 5)。制备了一系列具有良好收率和高收率并具有完全区域选择性的取代吡唑。