Chatterjea, J. N.; Sahai, Radhika P.
Journal of the Indian Chemical Society, 1982 , vol. 59, # 11/12 p. 1372 - 1374

Liu, Kaisheng; Jia, Fan; Xi, Hui; Li, Yuanming; Zheng, Xiaojian; Guo, Qiaoxia; Shen, Baojian; Li, Zhiping
Organic Letters, 2013 , vol. 15, # 8 p. 2026 - 2029