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Mesotrione is a selective herbicide used mainly in maize crops. [1] It is a synthetic compound inspired by the natural substance leptospermone found in the bottlebrush tree Callistemon citrinus . It inhibits the enzyme 4-hydroxyphenylpyruvate dioxygenase (HPPD) [ 3 ] and is sold under brand names including Callisto and Tenacity.
Mesotrione was introduced in 2002 and like sulcotrione is a triketone, so it is effective on the same weeds and crops, but is more potent, making it more useful in mixes with other herbicides - an important factor for fully controlling weeds and preventing the development of resistance. It has become the biggest selling member of the HPPD class ...
Tenacity is the customary measure of strength of a fiber or yarn. It is usually defined as the ultimate (breaking) force of the fiber (in gram -force units) divided by the denier . Because denier is a measure of the linear density, the tenacity works out to be not a measure of force per unit area, but rather a quasi-dimensionless measure ...
In the mid-1980s, scientists at Stauffer Chemical Company published patents to benzoyl-substituted cyclohexanediones which led to their product mesotrione. [3] This encouraged workers at Rhône-Poulenc to expand their own research into molecules with the same mode of action as these 4-hydroxyphenylpyruvate dioxygenase inhibitors .
Leptospermone can be synthesized from phloroglucinol by a reaction with 3-methylbutanenitrile (isovaleronitrile) in the presence of a zinc chloride catalyst. . Phloroisovalerone imine is produced which is then alkylated with iodomethane after initial treatment with sodium ethoxide and methanol to produce an intermediate which is treated with aqueous hydrochloric acid resulting in ...
Tenacity may refer to: Tenacity (psychology), having persistence in purpose; Tenacity (mineralogy) a mineral's resistance to breaking or deformation; Tenacity (herbicide), a brand name for a selective herbicide; Tenacity (textile strength) Tenacity (audio editor), an Audacity fork; Tenacity (non-profit), an organization founded by Ned Eames
The following other wikis use this file: Usage on ar.wikipedia.org ميزوتريون; Usage on azb.wikipedia.org مزوتریون; Usage on de.wikipedia.org
Sectility is a form of tenacity and can be used to distinguish minerals of similar appearance. [2] Gold, for example, is sectile but pyrite ("fool's gold") is not.