反应条件
hydrogenchloride; toluene-4-sulfonic acid 1) 130 deg C, 13 h; 2) toluene, reflux, 90 min; Yield given. Multistep reaction;
参考文献
Katritzky, Alan R.; Rachwal, Stanislaw; Rachwal, Bogumila; Steel, Peter J.
Journal of Organic Chemistry, 1992 , vol. 57, # 18 p. 4932 - 4939