Photochemical properties and degradation by-products of triasulfuron and thifensulfuron-methyl was written by Scrano, Laura;Bufo, Sabino A.;D’Auria, Maurizio;Chovelon, Jean-Marc. And the article was included in International Journal of Environmental Analytical Chemistry in 2006.Recommanded Product: 2-(2-Chloroethoxy)benzenesulfonamide This article mentions the following:
The effect of light on two sulfonylurea herbicides, triasulfuron and thifensulfuron Me, was studied under both UV and solar simulator irradiation (Suntest). Energies of first singlet and triplet state transitions were calculated from fluorescence and phosphorescence spectra. Experiments were performed in the presence of either a singlet or a triplet quencher showing that photodegradation of both herbicides begins from a triplet state, T1. The photolysis process of both herbicides occurred through first-order kinetics. The investigation stressed the relevance of the light exposition on the degradation rate of both herbicides. Half-lives of photolysis reactions (Suntest) in the organic solvent used in the experiments (22 and 54 h for triasulfuron and thifensulfuron Me, resp.) are comparable with the hydrolysis rate in aqueous environment. With UV irradiation, the degradation time of both herbicides can be greatly reduced to several minutes, thus suggesting that this technique can be adopted as an efficient method of detoxification. The main photoproducts, identified by LC-ESI-MS, were: (4-methoxy-6-methyl-1,3,5-triazin-2-yl)urea and 4-methoxy-6-methyl-1,3,5-triazin-2-amine, common to triasulfuron and thifensulfuron-methyl; 2-(2-chloroethoxy)benzenesulfonamide and (2-chloroethoxy)benzene, arising from triasulfuron degradation; 4-sulfamoyl-thiophene-3-carboxylic acid Me ester and thiophene-3-carboxylic acid Me ester, occurring from thifensulfuron-Me transformation. The presence of minor byproducts was also ascertained. In the experiment, the researchers used many compounds, for example, 2-(2-Chloroethoxy)benzenesulfonamide (cas: 82097-01-6Recommanded Product: 2-(2-Chloroethoxy)benzenesulfonamide).
2-(2-Chloroethoxy)benzenesulfonamide (cas: 82097-01-6) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Amides are stable compounds. The lower-melting members (such as acetamide) can be readily purified by fractional distillation. Most amides are solids which have low solubilities in water.Recommanded Product: 2-(2-Chloroethoxy)benzenesulfonamide
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics