Project supported by the National Natural Science Foundation(Nos.20025207,20272071,29832020),the Qinghaosu Science and Technology Foundation,Chinese Academy of Sciences(No.KGCX2-SW-209)and the Major State Basic Research Development Program(No.G2000077502
Reaction of a 1,2,4,5-tetraoxane with cysteinate-iron in the presence of excess methyl cysteinate led to formation of sulfur-alkylated methyl cysteinate in 33% yield, illustrating a possible mechanism for tetraoxanes'...