Basagran

Nilles, G.P. and Zabik, M. J. Photochemistry of bioactive compounds. Multiphase photodegradation and spectral analysis of basagran, 7 Agric. Food Chem., 23(3) 410-415, 1975. 

Basagran has a herbicidal activity but a high bioconcentration factor (Kinkennon, 1995). Diquat is able to undergo natural photochemical decomposition after application to plant surfaces. Studies show that 50 mg of herbicide is depleted to below 6 mg/kg within 7 days after treatment. In soil, diquat is biodegraded at a rate of 10% per year. In aqueous environments, diquat was degraded to levels that were undetectable in less than 30 days. 

The chemical structures of herbicides are shown in Figure 9.7. Herbicides containing secondary amino moieties such as Basagran and diuron are more... 

Kinkennon, A., The use of simulated of concentrated natural solar radiation for the Ti02 mediated photodecomposition of Basagran, diquat, and diuron, Chemosphere, 31, 3663, 1995. 

SYNS BAS 351-H BASAGRAN BENDIOXIDE BENTAZON 3-ISOPROPYL-2,l,3-BENZOTHIADIAZIN-ON-(4)-2,2-DIOXID (GERMAN) Q 3-ISOPROPYL-lH-2,l,3-BENZOTHIADIAZIN-4(3H)-ONE-2,2-DIOXIDE... 

Bentazone. Basagran Ethirimoi. Milstem Dimethirimol. Milcarb ... 

Basagran is mildly irritating to eyes and respiratory tract and is therefore designated to Toxicity Class III. 

One of the only commercial product with bentazon as the sole active is Basagran. Storm is a product that contains aciflurofen along with bentazon. 

Special mention should be made of bentazone, 3-isopropyl-l//-2,l,3-benzothiadiazin-4-one 2,2-dioxide (74) (Section II,C,2,b) (66GEP1542838). Basagran, the biologically active form of bentazone, is nowadays employed extensively as a selective postemergence herbicide in numerous crops. As already mentioned (Section II,C,2,b), a wide variety of thiadiazines fused to heterocyclic systems have been synthesized in the search for herbicides and success is frequently claimed in the patent literature. 

Basagran . [BASF AG] Bentazon and blends for postemeigence control of broadleaf weeds in cereal crops. 

In addition to the above-mentioned photochemical transformations of some pesticides another study of photodegradation of Basagran (Benta-zon) herbicide has been carried out both under natural conditions (solar radiation) and model conditions [74]. The study also deals with the photodegradation of Basagran in aqueous solutions. 

Bentazon (Basagran), 3-isopropyl-2,1,3-benzothiadia-zinone-(4)-2,2-dioxide (BASF AG)... 

Synonyms BAS 351-H Basagran Bendioxide Bentazon 3-Isopropyl-l/f-2,l,3-benzothi-adiazin-4(3//)-one-2,2-dioxide 3-(l-Methylethyl)-l -2,l,3-benzothiadiazin-4(3/0-one-2,2-dioxide. 

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