反应详情

The procedure of Example 1 was repeated substituting 95 percent monoethanolamine (28.6 parts) for the ammonium hydroxide of Example 1. A sticky solid was filtered after treatment with hydrochloric acid, and upon drying in vacuo over P2O5 weighed 59.6 g. (78.5 percent of theory) m.p. 122°-124° C.

1. filtrationA sticky solid was filtered after treatment with hydrochloric acid
2. dry with materialupon drying in vacuo over P2O5