Company Filing History:
1 out of 4 
1 out of 1 Years Active: 2015
Title: Qunzhen Guo: Innovator in Agrochemical Patents
Introduction
Qunzhen Guo is a notable inventor based in Hangzhou, China. He has made significant contributions to the field of agrochemicals, particularly through his innovative patent related to carfentrazone-ethyl. His work exemplifies the intersection of chemistry and agricultural science, showcasing the importance of innovation in enhancing crop protection.
Latest Patents
Qunzhen Guo holds a patent for the "Preparation method of carfentrazone-ethyl." This preparation method involves a series of chemical reactions, starting with the reaction of 1-(5-amino-4-chloro-2-fluorophenyl)-4-difluoromethyl-3-methyl-1H-1,2,4-triazol-5-one with acrylic acid through a diazo arylation reaction. This process yields 2-chloro-3-{2-chloro-5-[4-(difluoromethyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,3-triazol-1-yl]-4-fluorophenyl}propionic acid. The subsequent step involves reacting this compound with ethanol in the presence of an acidic catalyst to produce carfentrazone-ethyl. This patent highlights Guo's expertise in developing effective agrochemical solutions.
Career Highlights
Throughout his career, Qunzhen Guo has worked with several prominent companies in the agrochemical industry. Notable among these are Zhejiang Zhuji United Chemicals Co., Ltd. and Luzhou Oriental Agrochemicals Co., Ltd. His experience in these organizations has contributed to his understanding of the market and the technical requirements for successful product development.
Collaborations
Qunzhen Guo has collaborated with esteemed colleagues in his field, including Guoping Cai and Tangjun Wang. These partnerships have likely fostered a rich exchange of ideas and innovations, further enhancing the quality of his work.
Conclusion
Qunzhen Guo's contributions to the field of agrochemicals through his patent for carfentrazone-ethyl demonstrate his innovative spirit and commitment to advancing agricultural science. His career reflects a dedication to improving crop protection methods, which is essential for sustainable agriculture.