United States of America, As Represented by the Secretary of Agriculture

Other

Villanova University

Investigaciones Biologicas En Agroquimicos Rosario S.a.

Stephen O Duke

Helmut Walter

Kevin Schrader

Charles L Cantrell

Gustavo M Sosa

Lucia M Travaini

Nestor Carrillo

Robert M Giuliano

Eduardo Ceccarelli

Disclosed herein are methods of making (4aR,6S,8aR)-6-((R)-1-hydroxyethyl)-6,8a-dihydropyrano[3,2-b]pyran-2-(4aH)-one (2) and methods of making (4aR,6S,8aR)-6-cyano-6,8a-dihydropyrano-[3,2-b]pyran-2(4aH)-one (4). Other pyranopyrans were also synthesized. Also compositions containing (4aR,6S,8aR)-6-cyano-6,8a-dihydropyrano-[3,2-b]pyran-2(4aH)-one (4) (or other pyranopyrans described herein) and optionally a carrier. In addition, methods for killing microorganisms or weeds on or in an object or area involving contacting the object or area with an effective microorganisms or weeds killing amount of a composition containing (4aR,6S,8aR)-6-cyano-6,8a-dihydropyrano-[3,2-b]pyran-2(4aH)-one (4) (or other pyranopyrans described herein) and optionally a carrier.

Methods of making pyranopyrans such as pyranopyran nitrile and methods of using pyranopyrans such as pyranopyran nitrile

An herbicidal composition comprising one or more compounds of Formula I: where Rand Rare H or taken together with the carbon atoms to which the are attached form a furane ring; Rand Reach independently represent H, &#x2014;OH or &#x2014;O&#x2014;(C-C) alkyl; and Ris H, (C-C) alkyl, &#x2014;(C-C) alkylene-O-glucoside or &#x2014;COOH; and an agriculturally acceptable vehicle. There is also disclosed a method for weed control by application of compounds of Formula I and the use of the composition for controlling weeds.

Herbicidal composition comprising chromone derivatives and a method for weed control

Growing community of inventors

Oxford, MS, United States of America

Stephen O Duke