发明名称 |
PROCESS FOR PREPARING A NOVEL CRYSTALLINE FORM OF EMAMECTIN BENZOATE AND USE THE SAME |
摘要 |
A crystalline modification V of emamectin benzoate, exhibiting at least 3 of the following reflexes in an X-ray powder diffractogram recorded using Cu—Kα radiation at 25° C.:;2θ=4.34±0.2 (1);2θ=10.58±0.2 (2);2θ=12.32±0.2 (3);2θ=15.19±0.2 (4);2θ=18.57±0.2 (5);2θ=20.41±0.2 (6);A process for the preparation of emamectin benzoate in the aforementioned form comprises i) preparing a solution of a solid form of emamectin benzoate in a solvent comprising ethyl acetate and n-hexane; ii) effecting crystallization of emamectin benzoate from the solution; and iii) isolating the emamectin benzoate formed. The crystalline modification V can be formulated to any suitable pesticidal formulations. |
申请公布号 |
US2016355538(A1) |
申请公布日期 |
2016.12.08 |
申请号 |
US201514733054 |
申请日期 |
2015.06.08 |
申请人 |
ROTAM AGROCHEM INTERNATIONAL CO., LTD. |
发明人 |
BRISTOW James Timothy |
分类号 |
C07H17/08;A01N43/90 |
主分类号 |
C07H17/08 |
代理机构 |
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代理人 |
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主权项 |
1. A crystalline modification V of emamectin benzoate, exhibiting at least 3 of the following reflexes in an X-ray powder diffractogram recorded using Cu—Kα radiation at 25° C.:
2θ=4.34±0.2 (1) 2θ=10.58±0.2 (2) 2θ=12.32±0.2 (3) 2θ=15.19±0.2 (4) 2θ=18.57±0.2 (5) 2θ=20.41±0.2 (6) |
地址 |
Chai Wan CN |