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Atrazine first produced

Three different degradation mechanisms were proposed. In the first mechanism, the hydroxyl radical attacks atrazine by hydrogen abstraction from the secondary carbon of the ethylamino side chain, producing a free radical as shown in Equation (6.135). [Pg.227]

The first examples, reported by Geigy in the early 1950s, were Atrazine and Simazine. They are widely used, particularly the former, for weed control in maize and sugar cane. Atrazine provides a direct contrast with the phenoxybu-tyric acids discussed in section 5.5.2. In the latter case the weed carried out a chemical conversion on the applied chemical, thereby producing the selectivity of action. With maize the reverse type of selectivity is present, because the enzymes in the maize are able to detoxify the atrazine by hydrolysing off the chlorine. The weeds do not possess the appropriate enzymes and therefore succumb to the herbicidal effects. [Pg.259]


See other pages where Atrazine first produced is mentioned: [Pg.530]    [Pg.66]    [Pg.113]    [Pg.259]    [Pg.309]    [Pg.310]    [Pg.360]    [Pg.361]    [Pg.400]    [Pg.530]    [Pg.323]    [Pg.203]    [Pg.254]    [Pg.274]    [Pg.65]    [Pg.100]   
See also in sourсe #XX -- [ Pg.17 ]




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