反应条件
sulfuric acid in N,N-dimethyl-formamide addition (1 h, 140°C), stirring (5 h); extraction (CH2Cl2), washing (aq NaHCO3, brine), evapn., chromy. (silicagel, hexane-CH2Cl2);
参考文献
Higuchi, Hiroyuki; Shimizu, Kenji; Takeuchi, Makoto; Ojima, Juro; Sugiura, Ken-ichi; Sakata, Yoshiteru
Bulletin of the Chemical Society of Japan, 1997 , vol. 70, # 8 p. 1923 - 1934
