A green and efficient ammonium acetate-catalyzed one-pot synthesis of 4-[(2-hydroxynaphthalen-1-yl)(phenyl)methyl]-3-methyl-1H-pyrazol-5-ol derivatives
作者:Hanyun You、Min Lei、Lihong Hu
DOI:10.1007/s00706-013-1056-x
日期:2013.12
AbstractA facile and efficient one-pot synthesis of 4-[(2-hydroxynaphthalen-1-yl)(phenyl)methyl]-3-methyl-1H-pyrazol-5-ol derivativescatalyzed by ammoniumacetate has been developed using the three-component reaction of β-naphthol, aldehyde, and 1H-pyrazol-5(4H)-one. The advantages of this method are the use of an inexpensive and readily available catalyst, easy workup, and improved yields. Graphical