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Updated: Aug 19, 2026

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines
Published on: January 3, 2018
[Study on the phosphorylaions reaction between ethyl salicylate and DEPH]
Xiao-lan Chen1, Xin-cheng Liao, Jian-sha Lu
1Chemistry Department, Zhengzhou University, Zhengzhou, China.
Abstract:
Atherton-Todd reaction has been extensively applied to the synthesis of phosphates and phosphoroamidates. Under Atherton-Todd reaction conditions, dialkyl phosphites were probably transformed into diakyl phosphorochloridates. We have tried to use Atherton-Todd reaction to synthesize phosphate of salicylic-acid. But when the -COOH of salicylic acid was under unprotected, the yield was quite low. It was found that the -COOH possibly participated in the reaction. The competitive reaction between the -COOH and -OH of salicylic acid probably existed. In order to understand the detail mechanism, ethyl-salicylate was selected to be phosphorylated In the end, ethyl-salicylate successfully phosphorylated by modification of the classical Atherton-Todd procedure through dropping the DEPH and tetrachloromethane into the mixed solution of ethyl-salicylate, triethylamine and dioxane with good yields. The structures were elucidated by NMR and ESI/MS/MS data.
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