Company Filing History:
Years Active: 1977-1980
Title: The Innovative Contributions of Edward R. Freiter in Midland, MI
Introduction: Edward R. Freiter is a notable inventor based in Midland, MI, who has made significant contributions to the field of chemistry through his innovative work. With a total of three patents to his name, Freiter has demonstrated a commitment to advancing chemical processes that have practical applications in various industries.
Latest Patents: Edward R. Freiter's latest patents include groundbreaking methodologies in the synthesis and rearrangement of chemical compounds. One of his key inventions, titled "Oxazolinium salts and method of preparation," outlines a process for transforming 1-Aryl-1-hydroxy-2-methylaminopropanes from the erythro isomer to the threo isomer. This complex process involves the formation of an O,N-diacyl derivative, subsequent reaction with protic acid, and finally, the production of the threo isomer as an amine/acid salt. This methodology is particularly significant for the manufacture of d-pseudoephedrine from 1-ephedrine. Freiter also contributed to the synthesis of alpha-diketones, wherein compounds like 1-phenyl-1,2-propanedione are derived through reactions involving acylmethyl esters and aldehydes facilitated by an acid catalyst.
Career Highlights: Throughout his career at the Dow Chemical Company, Freiter has been instrumental in pioneering chemical processes that enhance efficiency and yield in production. His extensive research and inventive applications have not only expanded the capabilities of chemical synthesis but have also positioned him as a valuable asset within the company.
Collaborations: Collaborating with esteemed colleagues such as William Dowd and Richard C. Krauss, Freiter has engaged in sharing knowledge and expertise to further refine and develop his innovative ideas. These partnerships have fostered an environment of creativity and scientific advancement within their respective projects.
Conclusion: Edward R. Freiter exemplifies the spirit of innovation through his contributions to chemical engineering and his role at the Dow Chemical Company. His patents, particularly in the synthesis of oxazolinium salts and alpha-diketones, reflect his dedication to advancing the field. As he continues to innovate, Freiter remains a prominent figure in the landscape of inventors, dedicated to leveraging science for practical applications.