“…[20][21][22] In this article we report implemented in our work practical modifications of MPA synthesis. 25 Both 1,2,3,4-and 1,2,3,5-isomers are rare and expensive chemicals. In contrast to that, 1,2,4,5-tetramethylbenzene is an easy available compound which we have used as a solvent in synthesis of N,N-diethyl-2-hydroxy-4-methoxy-3-(prop-2-enyl)benzamide (2).…”