Company Filing History:
Years Active: 2023-2025
Title: Duoqing Xue: Innovator in Chemical Synthesis
Introduction
Duoqing Xue is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of chemical synthesis, holding a total of 2 patents. His innovative methods have advanced the production of various chemical compounds, showcasing his expertise and creativity in the field.
Latest Patents
One of Duoqing Xue's latest patents is a synthesis method for 1-methyl-1H-indazole-6-carboxylic acid. This method involves using 2-fluoro-4-bromobenzaldehyde and methylhydrazine as raw materials to obtain 6-bromo-1-methylindazole through an annulation reaction. Following this, a methyl formate reaction and a hydrolysis reaction are performed to yield the desired compound. This synthesis method allows for the direct production of a 1-position methyl substituted indazole without isomers, thus improving product purity and achieving a yield of 85% in the annulation reaction.
Another notable patent is the method for preparing 2-ethyl-4-fluoro-1-nitrobenzene. This process includes several steps: nitrifying 3-fluoroacetophenone with a nitration reagent to obtain 1-(5-fluoro-2-nitrophenyl)ethanone, reducing this compound with a reducing agent to yield 4-fluoro-2-(1-hydroxyethyl)-1-nitrobenzene, iodinating it to form 4-fluoro-2-(1-iodoethyl)-1-nitrobenzene, and finally reducing it again to produce 2-ethyl-4-fluoro-1-nitrobenzene.
Career Highlights
Duoqing Xue is currently employed at Accela Chembio Co., Ltd., where he continues to innovate and develop new chemical synthesis methods. His work has been instrumental in enhancing the efficiency and effectiveness of chemical production processes.
Collaborations
Throughout his career, Duoqing has collaborated with notable colleagues, including Yong Wu and Lihuang Chen. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in their field.
Conclusion
Duoqing Xue is a distinguished inventor whose contributions to chemical synthesis have made a
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.