Bromophos

Organophosphate insecticides Bromophos, chlorpyrifos, parathion, malathion, diazinon... 

The majority of studies on the TiOz photocatalysis of organophosphorus compounds rely primarily on the disappearance of the initial substrate coupled with the monitoring of the mineralization products. Because of the complex mixtures formed in the TiOz photocatalysis of these compounds, there is limited information on the reaction pathways and mechanisms involved in the degradation processes. A recent report by Konstantinou et al. identified a number of intermediate products in the degradation of dichlofenthion and bromophos methyl by TiOz... 

Figure 5 Reaction pathways proposed for the TiO2 photocatalysis of dichlofenthion and bromophos methyl in aqueous media. (From Ref. 48.)...

A caricide bromopropylate [18181-80-1] Insecticide and acaricide bromophos [2104-96-3] C8H8BiC1203PS... 

Mevinphos I, dimethoate, mevinphos II, dichlorvos, diazinon, paraoxon, azinphos-methyl, fenamiphos, parathion-methyl, malathion, fenitrothion, azinphos ethyl, fenthion, parathion-ethyl, coumaphos, phorate, phoxim, disulfoton, chlorpyriphos, ome-thoate, monocrotophos, vamidothion, bromophos ethyl, metoxichlor, DDT... 

Water Fenchlorphos, chlorpyriphos, bromophos, tetrachlorvinphos, coumaphos Triazines, anilides... 

Water Dimethoate, fenamiphos, bromophos ethyl, fenthion, coumaphos, fenchlorfos, chlorpyriphos, monocrotophos, mevinphos, fosphamidon, paraoxon, azinphos methyl, foxim, carbophenothion, bromophos methyl Carbamates, phenyl urea, anilides, nitrofenoles... 

Extraordinary selectivity has been accomplished with the parathion-type of insecticide by incorporating Q or CH3 groups in the meta position of the aryl ring. These groups interact sterically with acetylcholinesterase (AChE), increasing the affinity for the insect enzyme and decreasing it with the mammalian enzyme. Selectivity also is enhanced by differences in the rates of microsomal oxidation of P=S to P=0 and in hydrolytic detoxication between insects and mammals. The compounds, fenitrothion, fenthion, ronnel, bromophos, iodofenfos, chlorpyrifos—methyl, and pirimiphos —methyl, and dicapthon are used widely in public health, household, and agricultural pest control. 

Table 8 Preparation of phospha sugar nucleoside 118 by the reaction of 2-bromophos-pholane 103c with cyclic base 117...

Malathion, Parathion, Parathion-methyl, Bromophos Silica gel F Hexane dichloromethane (1 1) Extracted from water with dichloro methane Yellow spots produced on spraying with palladium(II) chloride [83]... 

Common Name Bromophos-ethyl Synonym Nexagan, Filariol... 

---