Photodegradation of herbicide triasulfuron was written by Pusino, Alba;Braschi, Ilaria;Petretto, Salvatore;Gessa, Carlo. And the article was included in Pesticide Science in 1999.Formula: C8H10ClNO3S This article mentions the following:
Triasulfuron was degraded in aqueous solution by UV irradiation to yield 2-chloroethoxybenzene and (4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea. The reaction followed first-order kinetics. In sunlight, the reaction was slower and afforded these two photoproducts together with 2-amino-4-methoxy-6-methyltriazine and 2-(2-chloroethoxy)benzenesulfonamide. The latter compounds arise from hydrolytic cleavage of the sulfonylurea bridge of triasulfuron, because of the acidity of the reaction medium due to the release of sulfur dioxide. A mechanism which accounts for the formation of the photoproducts is proposed. In the experiment, the researchers used many compounds, for example, 2-(2-Chloroethoxy)benzenesulfonamide (cas: 82097-01-6Formula: C8H10ClNO3S).
2-(2-Chloroethoxy)benzenesulfonamide (cas: 82097-01-6) belongs to amides. Amides can be viewed as a derivative of a carboxylic acid RC(=O)OH with the hydroxyl group –OH replaced by an amine group −NR′R″; or, equivalently, an acyl (alkanoyl) group RC(=O)− joined to an amine group. The presence of the amide group –C(=O)N– is generally easily established, at least in small molecules. It can be distinguished from nitro and cyano groups in IR spectra. Amides exhibit a moderately intense νCO band near 1650 cm−1. By 1H NMR spectroscopy, CONHR signals occur at low fields. In X-ray crystallography, the C(=O)N center together with the three immediately adjacent atoms characteristically define a plane.Formula: C8H10ClNO3S
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics