Analysis of Catalytic Reactions of Activated Tungstic Acid

This report details a series of laboratory experiments designed to investigate the catalytic activity of activated tungstic acid, produced through partial dehydration. The study explores the catalytic transformations of various alkenes and unsaturated five-membered ring heterocycles, such as indoles, pyrroline, and dihydrofuran. The methodology includes reactions conducted at 150°C, followed by analysis using gas chromatography/mass spectroscopy to identify and confirm product identities. The report discusses the properties of different forms of tungstic acid, including yellow, white, and partial tungstic acid. Results show the formation of various organic compounds, with a yield of approximately 60% in the experiment, and the report also highlights the effect of temperature, pressure, and the use of the bromine test, along with the Gibb’s free energy equation to explain the reaction. The report concludes with an overview of the catalytic reactions and the factors that influence the process.