Ads
related to: maleic anhydride pesticide
Search results
Results From The WOW.Com Content Network
Maleic anhydride is a classic substrate for Diels-Alder reactions. [9] It was used for work in 1928, on the reaction between maleic anhydride and 1,3-butadiene, for which Otto Paul Hermann Diels and Kurt Alder were awarded the Nobel Prize in 1950. It is through this reaction that maleic anhydride is converted to many pesticides and pharmaceuticals.
The material is synthesized by the esterification of maleic acid or maleic anhydride and ... One of the key uses for the compound is in production of the pesticide ...
Styrene maleic anhydride copolymer is formed, retaining the aromaticity of the styrene. The Diels–Alder product can be re-aromatized using elemental sulfur at high temperature, followed by a second rearomatization by decarboxylation with barium hydroxide and copper: [3] Wagner-Jauregg reaction
2,3-Dimethylmaleic anhydride is an organic compound with the formula (CH 3) 2 C 2 (CO) 2 O. [1] It is related to maleic anhydride (MA) by replacement of the two CH units with CCH 3 groups. The compound can be prepared from two eqiuvalents of MA in the presence of 2-aminopyridine followed by treatment with sulfuric acid.
Maleic hydrazide, often known by the brand name Fazor is a plant growth regulator that reduces growth through preventing cell division but not cell enlargement. [ 1 ] [ 2 ] It is applied to the foliage of potato, onion, garlic and carrot crops to prevent sprouting during storage. [ 3 ]
For the synthesis of tetrasodium iminodisuccinate, maleic anhydride is reacted with sodium hydroxide in water at elevated temperature. A concentrated disodium maleate solution is formed to which ammonia is added [ 4 ] at 90 to 145 °C, then excess water and ammonia is distilled off.