Yuhe Xiu
2002
Citations
0
Influential Citations
0
Citations
Journal
Journal of Shenyang Institute of Chemical Technolgy
Abstract
Sodium diethyl oxalacetate was prepared by Claisen condensation with acetic and oxalic acid esters. The optimum reaction conditions of synthesis are as follows: (1) the molar ratio of ethyl acetate to diethyl oxalate:1.02∶1;(2) concentration of base:19.5 %;(3) reaction time:4 hours. Under the condition,the yield of sodium of diethyl oxalacetate is 76 %.The sodium salt condensed with phenyl hydrazine in the acid condition to prepare 1 phenyl 3 carbethoxy 5 pyrazolone. The structure of product was identified by IR.