Ronald D Dennis

Title: **Innovative Contributions of Ronald D. Dennis**

Introduction

Ronald D. Dennis is a notable inventor based in Evansville, Indiana, whose work has led to six patents throughout his career. His innovative contributions, particularly in the field of chemistry and pharmaceuticals, have provided significant advancements in the resolution of optical isomers.

Latest Patents

His most recent patents focus on a sophisticated process for resolving racemic modifications of beta-adrenergic aryl- or hetaryl-oxypropanolamines. This patented process involves converting the racemic modification into diastereomeric urea derivatives through a reaction with chiral aralkyl isocyanates. Following the conversion, the individual diastereomers are separated, and the starting amine is regenerated by cleaving the urea compound using hydrazine. An enhancement in this final step is achieved by incorporating an alpha-keto carboxylic acid, such as pyruvic acid, that acts as a scavenger of nucleophilic by-products.

Career Highlights

Ronald has had an influential career with prominent companies such as Mead Johnson & Company and Bristol-Myers Company. His roles in these organizations allowed him to apply his innovative thinking and scientific skills to develop practical solutions in his area of expertise.

Collaborations

Throughout his career, Ronald has collaborated with esteemed colleagues such as John E. Lawson and Terence M. Dolak. These professional partnerships contributed to the success of his projects and helped facilitate advancements in their respective fields.

Conclusion

Ronald D. Dennis has made remarkable strides in the innovation of chemical processes, contributing to the pharmaceutical industry with his expertise and patentable inventions. His ongoing work exemplifies the impact of dedicated inventors in shaping the future of science and technology.