CN Patent

CN111440211B — 一种一锅法催化合成马拉硫磷的方法

Assigned to College of Science and Technology of Ningbo University · Expires 2023-02-07 · 3y expired

What this patent protects

本发明公开了一种一锅法催化合成马拉硫磷的方法，该方法步骤如下：将马来酸二乙酯、五硫化二磷和碱性催化剂混合，然后再加入甲醇，进行一锅法反应，反应结束后经过后处理得到所述的马拉硫磷。本发明的合成方法反应简洁，反应时间短，成本低，产品纯度高，在农药生产中具有重要的应用意义。

USPTO Abstract

本发明公开了一种一锅法催化合成马拉硫磷的方法，该方法步骤如下：将马来酸二乙酯、五硫化二磷和碱性催化剂混合，然后再加入甲醇，进行一锅法反应，反应结束后经过后处理得到所述的马拉硫磷。本发明的合成方法反应简洁，反应时间短，成本低，产品纯度高，在农药生产中具有重要的应用意义。

Drugs covered by this patent

Patent Metadata

Patent number
CN111440211B
Jurisdiction
CN
Classification
—
Expires
2023-02-07
Drug substance claim
No
Drug product claim
No
Assignee
College of Science and Technology of Ningbo University
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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