反应条件
toluene-4-sulfonic acid; hydroquinone; 2,3-dicyano-5,6-dichloro-p-benzoquinone 1.) 130 deg C, 48 h, 2.) benzene, reflux, 1.5 h, 3.) benzene, reflux, 2 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;
参考文献
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , p. 2415 - 2434