1: 6percent ammonia / methanol / 0.75 h / Ambient temperature 2: 1percent sulpuric acid / H2O / 1 h / Heating View Scheme
参考文献
Holland, David; Stoddart, J. Fraser
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1983 , # 7 p. 1553 - 1571