The photochemical degradation of the herbicide isoproturon in aqueous and non‐aqueous solutions and in soils has been investigated. Four new photometabolites were formed in non‐aqueous solution and three in soil. These were characterised by spectroscopic methods and identified by comparison with authentic synthetic samples such as 3‐(4‐isopropylphenyl)‐1‐methylurea; 3‐(4‐isopropylphenyl)urea; 4,4′‐diisopropylazobenzene and 4,4′‐diisopropylazoxybenzene. The pathway of formation of these photo products is depicted.
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Kulshrestha et al. (1986) studied this question.
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