1: 2 percent / acetone / 22 h / Heating 2: acetone / 36 h / Heating View Scheme
参考文献
Singh, Harjit; Ahuja, A. S.; Malhotra, N.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 12 p. 1019 - 1022