Company Filing History:
Years Active: 2023-2025
Title: Lianhua Zhai: Innovator in Chemical Synthesis
Introduction
Lianhua Zhai is a notable 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
Lianhua Zhai's latest patents include 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 hydrolysis are performed to yield the desired compound. This synthesis method is notable for its ability to directly produce a 1-position methyl substituted indazole without isomers, thus improving product purity and achieving a yield of 85% in the annulation reaction.
Another significant patent is the method for preparing 2-ethyl-4-fluoro-1-nitrobenzene. This process includes several steps: nitrifying 3-fluoroacetophenone with a nitration reagent, reducing the resulting compound, iodinating it, and finally reducing it again to obtain the target compound. This method highlights Zhai's innovative approach to chemical synthesis.
Career Highlights
Lianhua Zhai is currently employed at Accela Chembio Co., Ltd. His work at this company has allowed him to focus on developing new chemical synthesis methods that have practical applications in various industries. His contributions have been instrumental in enhancing the efficiency and effectiveness of chemical production processes.
Collaborations
Lianhua Zhai has collaborated with several talented individuals in his field, including Duoqing Xue and Yong Wu. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Lianhua Zhai is a prominent inventor whose work in chemical synthesis has led to significant advancements in the field. His innovative methods and collaborative spirit continue to inspire others in the industry.