Iowa State University Research Foundation Inc.

University of Iowa Research Foundation

George A Kraus

Jacob W Petrich

Kyle Podolak

Susan L Carpenter

Yi Yuan

Brent Shanks

Wendy Maury

Derek Lee White

Sriram Sundararajan

William Bradley

Jiajie Huo

Aaron David Sadow

Anumantha G Kanthasamy

Gregory L Tylka

Vellareddy Anantharam

Donald L Reynolds

Zachary Benjamin Weinstein

Jennifer J Lee

Jaehoon Bae

A heteroaryl-thio-substituted pyrone compound that is a heteroaryl-thio-substituted pyrone or a heteroaryl-thio-substituted coumarin. In various embodiments, the heteroaryl-thio-substituted pyrone compound or a reaction product thereof is a metal corrosion inhibitor.

Heteroaryl-thio-substituted pyrones

The present invention is toward a base oil or lubricant additives, methods of using the same, lubricant compositions including the same, and methods of forming the lubricant compositions. A base oil or lubricant additive has Structure I or Structure II as described herein.

Base oil or lubricant additive

The present application relates to a process for preparation of a compound of Formula (I) and Formula (IV): wherein is as described herein; and wherein and R are as described herein.

Green, copper-catalyzed disproportionation of aromatic and heteroaromatic carboxylates to dicarboxylates

A method to prepare coumalic acid comprising (a) heating a solution in dichloroethane of malic acid and sulfuric acid or a solution in dichloroethane of malic acid and a perfluorosulfonic acid or (b) adding an acid comprising sulfuric acid or a perfluorosulfonic acid to a solution of malic acid in dichloroethane to yield a solution that is heated for a period of time so as to convert the malic acid into a major amount of coumalic acid and, optionally, a minor amount of fumaric acid.

Synthesis of coumalic acid

The invention provides a method to prevent or treat HIV-infection with synthetic tannins, and pharmaceutical compositions comprising synthetic tannins.

Tannin inhibitors of HIV

A method of synthesis of para-substituted benzoate esters and acids is provided, wherein the para-substituted regioisomer is obtained substantially free of the meta-substituted impurity, the method comprising contacting a coumalate ester or acid and an unactivated alkene at elevated temperature in the presence of a metal oxidation catalyst and an oxidant. The metal oxidation catalyst can be palladium, such as palladium on carbon, and the oxidant can be the oxygen gas in ambient air. The reaction can be carried out without solvent or in high boiling hydrocarbon solvents such as mesitylene. When the unactivated alkene is a monosubstituted alkene, yields of at least about 50 or 60% of para-substituted ester and acid products, respectively, are obtained, substantially free of the regioisomeric meta-substituted impurity.

Method of regioselective synthesis of substituted benzoates

A method for preparing 1,4-biscarboxylic acid esters of benzene is provided.

Regiospecific synthesis of terephthalates

The present invention provides a method to produce olefins by the decarboxylation of organic carboxylic acids in the presence of an organopalladium catalyst.

Method for producing olefins

A method of synthesizing rottlerin analogs is described. The synthesis methods described are the first known method of synthesizing rottlerin analogs from commercially-available materials to produce cost effective analogs. Rottlerin analog structures made by the synthesis methods and methods of use for treating a neurological or inflammatory response mediated by protein kinase C (PKC) are further described.

Design, synthesis and functional characterization of rottlerin analogs

The invention provides compounds that are A-type procyanidins. The compounds can be prepared by reacting flavylium salts with catechins or analogs thereof, for example, under anhydrous conditions in alcohol.

Synthesis of polycyclic procyanidins

A method for preparing A-type procyanidins is provided by reacting flavylium salts with catechins and analogs thereof, under anhydrous conditions in alcohol.

Growing community of inventors

Ames, IA, United States of America

George A Kraus