abstract |
The invention entitled "Method of Preparation 2-Py"nrolidone "solves its preparation by hydrogenationnmaleic acid monoamide in an organic mediumnsolvents, preferably in 2-pyrrolidone,nat a temperature of 150 to 280 ° C and a pressure of 6 ton25 MPa. At present, 2-pyrrolidone appearsnimportant monomer in the production of polyamide. |