首页 / 专利库 / 农用化学品和农药 / 农作物保护 / 农药 / 除草剂 / 叶面除草剂 / Novel dicyanodihydropyrazine derivative

Novel dicyanodihydropyrazine derivative

阅读:46发布:2020-11-28

专利汇可以提供Novel dicyanodihydropyrazine derivative专利检索,专利查询,专利分析的服务。并且NEW MATERIAL:A 2,3-dicyanodihydropyrazine derivative shown by the formula I(R
1 is ethyl or n-propyl; R
2 is H, halogen, lower alkyl, lower alkoxy, or trifluoromethyl).
EXAMPLE: 2,3-Dicyano-5-ethylamino-6-phenyldihydropyrazine.
USE: A herbicide. Exhibiting effects by soil treatment of paddy field through flooding, foliar treatment during growth period of weeds, soil treatment of plowed field, etc. as a herbide before and/or after germination, especially effective as a herbicide for paddy field. Having abilities to control an annual weed, e.g., "Echinochloa crus- galli" Beauv. var. "praticola" Ohwi., having no phytotoxicity to rice plant.
PROCESS: A 2,3-dicyanopyrazine shown by the formula II is reacted with sodium boron hydride in an inert solvent, e.g., methanol, etc. preferably at about 15 to 30°C, to give a compound shown by the formula I.
COPYRIGHT: (C)1982,JPO&Japio,下面是Novel dicyanodihydropyrazine derivative专利的具体信息内容。

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。

申请试用

QQ群二维码
意见反馈