Company Filing History:
Years Active: 1997
Title: Innovations by Jianseng Tang in Pyrrol and Oxazole Compounds
Introduction
Jianseng Tang is an accomplished inventor based in Lisle, IL (US). He has made significant contributions to the field of chemistry, particularly in the preparation of pyrrol and oxazole compounds. His innovative work has led to advancements in the synthesis of various chemical derivatives.
Latest Patents
Jianseng Tang holds a patent for the "Preparation of pyrrol and oxazole compounds." This patent describes a process for preparing new or previously known pyrrol derivatives. The method involves reacting a nitroalkane or a nitroalkene with an isocyanoacetate in the presence of a prophosphatrane 'super base' to produce pyrrol compounds. The invention allows for the synthesis of new pyrrol derivatives such as dipyrromethanes and porphyrins. Additionally, the high yields of pyrrol compounds produced through this method enhance the efficiency of producing previously known dipyrromethane and porphyrin compounds. The patent also outlines a mild, high-yield process for the de-esterification of esterified pyrrol and dipyrromethane compounds. Furthermore, it provides a synthetic method for producing high yields of oxazoles through the reaction of an aryl halide or acid anhydride with an isocyanoacetate, also in the presence of a prophosphatrane 'super base'. The resulting oxazoles serve as intermediates for the treatment of pharmaceutically interesting C-acyl-.alpha.-amino acid esters.
Career Highlights
Jianseng Tang is associated with the Iowa State University Research Foundation, Inc., where he continues to engage in research and development. His work has been instrumental in advancing the understanding and application of chemical compounds in various fields.
Collaborations
One of his notable collaborators is John G Verkade, with whom he has worked on various projects related to his innovative research.
Conclusion
Jianseng Tang's contributions to the field of chemistry, particularly through his patent on pyrrol and oxazole compounds, highlight his role as a significant inventor. His work not only enhances the efficiency of chemical production but also opens new avenues for pharmaceutical applications.