Location History:
- Burghausen, Salzach, DE (1979)
- Burghausen, DE (1992)
Company Filing History:
Years Active: 1979-1992
Title: Gunter Scheffel: Innovator in Phosphorus Chemistry
Introduction
Gunter Scheffel is a notable inventor based in Burghausen, Germany. He has made significant contributions to the field of phosphorus chemistry, particularly through his innovative processes for preparing phosphino compounds. With a total of 3 patents to his name, Scheffel's work has implications in various industries, including flame retardants and plant protection agents.
Latest Patents
Scheffel's latest patents include a process for the preparation of phosphino compounds. This process involves the reaction of trialkyl phosphites with phosphorus trichloride and/or dichlorophosphinous acid monoalkyl esters at temperatures ranging from -20 to +100 degrees Celsius. Following this, a direct reaction with alkylmagnesium chloride or alkylmagnesium bromide occurs at temperatures between -60 to +50 degrees Celsius. The desired compounds are then separated from the distillate of volatile compounds. This method allows for the production of dialkyl alkylphosphonites and monoalkyl dialkylphosphinites without the need for troublesome and expensive purification of intermediates.
Career Highlights
Gunter Scheffel is associated with Hoechst Aktiengesellschaft, a prominent company in the chemical industry. His work has not only advanced the understanding of phosphorus-containing compounds but has also paved the way for their application in various sectors.
Collaborations
Throughout his career, Scheffel has collaborated with notable colleagues, including Michael Thiele and Reinhold Obermeier. These partnerships have contributed to the successful development of his innovative processes.
Conclusion
Gunter Scheffel's contributions to phosphorus chemistry through his patents and collaborations highlight his role as a significant inventor in the field. His innovative processes continue to influence the development of useful chemical intermediates.