| 摘要 |
NEW MATERIAL:A compound expressed by formula I (R is lower alkyl). EXAMPLE:2,6-Diethyl-4-methoxyaniline. USE:An intermediate for producing medicines, agricultural chemicals, etc., especially an intermediate for producing pyrone-3-carboxamide derivatives having herbicidal activity. PREPARATION:A compound expressed by formula II (X is halogen) is reacted with a compound expressed by the formula MOR (M is metal) to afford the aimed compound expressed by formula I. The reaction is preferably carried out by using cuprous oxide, cupric oxide, cuprous iodide, etc., as a catalyst and an inert solvent, such as benzene or hexane, at a temperature within the range of normally 50-180 deg.C, preferably 80-160 deg.C. |
