反应条件
ammonium hydroxide; sodium dithionite; boric acid 1.) conc. H2SO4, 80 dec C, then 5 deg C, 2 h; 2.) water, 95 deg C, 2 h; Multistep reaction;
参考文献
Cognard; Hieu Phan; Basturk
Molecular crystals and liquid crystals, 1983 , vol. 91, # 3-4 p. 327 - 340