发明名称 |
PROCESS FOR PRODUCING 1-(LOWER ALKOXY)-1-(LOWER ALKYL)-3-(SUBSTITUTED PHENYL)-UREAS |
摘要 |
A 1-lower alkoxy-1-lower alkyl-3-[4-(2-lower alkoxy-2,3-dihydro-7-benzopyranyloxy)phenyl]-urea is prepared by a process which comprises alkylating a novel 1-hydroxy-3-[4-(2-lower alkoxy-2,3-dihydro-7-benzopyranyloxy)phenyl]urea with a corresponding alkylating agent selected from the group consisting of a sulfuric acid ester and an alkyl halide in the presence of a basic compound. The 1-lower alkoxy-1-lower alkyl-3-[4-(2-lower alkoxy-2,3-dihydro-7-benzopyranyloxy)phenyl]urea has a herbicidal activity. New intermediates and processes for production thereof are also disclosed. |
申请公布号 |
HU207062(B) |
申请公布日期 |
1993.03.01 |
申请号 |
HU19900008405 |
申请日期 |
1990.12.21 |
申请人 |
MITSUI PETROCHEMICAL IND |
发明人 |
FUKUOKA DAISUKE;ISHITOKU TAKESHI;HASHIMOTO ISAO;KIHARA NORIAKI;TAKESUE MITSUYUKI |
分类号 |
C07D311/20;C07D311/74;(IPC1-7):C07D311/74 |
主分类号 |
C07D311/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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