反应条件
toluene-4-sulfonic acid
1.) aq. dioxane, 70 deg C - to 80 deg C, 1 h, 2.) benzene, reflux, 1 h; Yield given;
参考文献
Hagiwara, Hisahiro; Uda, Hisashi
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1984 , p. 91 - 94
