发明名称 |
METHOD FOR MAKING ACYLAMIDES BY SYNTHESIZING AND ACYLATING BENZOXAZINES |
摘要 |
A method is provided for synthesizing acylamides, useful as protectant for cultivated plants. A benzoxazine, such as 3,4-dihydro-3-methyl-2H-1,4-benzoxazine, is made in a stepwise manner by initially forming an o-nitrophenoxyketone by reacting a haloketone and a nitrophenol. The o-nitrophenoxyketone is hydrogenated to form the corresponding benzoxazine, which is thereafter acylated with an acylhalide to produce the acylamide, such as 4-dichloroacetyl-3,4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzoxazine. |
申请公布号 |
WO0190088(A1) |
申请公布日期 |
2001.11.29 |
申请号 |
WO2001EP05835 |
申请日期 |
2001.05.21 |
申请人 |
SYNGENTA PARTICIPATIONS AG;MUNSON, ROBERT, EUGENE;OLIVER, MICHAEL, ALLEN;SCHWEMLEIN, HEINZ, PETER |
发明人 |
MUNSON, ROBERT, EUGENE;OLIVER, MICHAEL, ALLEN;SCHWEMLEIN, HEINZ, PETER |
分类号 |
C07B61/00;C07D265/36 |
主分类号 |
C07B61/00 |
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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