Fabrication of PEI grafted Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/P(GMA-co-EGDMA) nanoparticle anchored palladium nanocatalyst and its application in Sonogashira cross-coupling reactions
Aryl ethynyl phthalic acid derivative and method for producing the same
申请人:Urazoe Daisuke
公开号:US20050215820A1
公开(公告)日:2005-09-29
The invention provides an aryl ethynyl phthalic acid and derivatives thereof (including fluorine-containing compounds) represented by Formulae 1, 3, 5, 4A and 5A including the structure of Formula 2, and method of producing these compounds, in which an aryl ethynyl phthalic anhydride is formed by subjecting an aryl phthalic acid to ring closing: