反应条件
silica gel; toluene-4-sulfonic acid 1.) acetonitrile, 3h, 80 deg C 2.) warm MeOH, 7h; Yield given. Multistep reaction;
参考文献
Tamura, Yasumitsu; Yoshimoto, Yoshihiko; Sakai, Kiyoshi; Haruta, Jun-ichi; Kita, Yasuyuki
Synthesis, 1980 , # 11 p. 887 - 889
