Tian, Yu; Zhang, Zunting; Wang, Tao published an article in 2021. The article was titled 《Synthesis of Isatin-Hydrazones from 3-Diazo Oxindoles and Sulfoxonium Ylides under Catalyst- and Additive-Free Conditions》, and you may find the article in European Journal of Organic Chemistry.SDS of cas: 1774-47-6 The information in the text is summarized as follows:
A facile synthesis of isatin-hydrazones from 3-diazo oxindoles and sulfoxonium ylides under catalyst- and additive-free conditions is described. A plausible reaction pathway is proposed for the transformation, in which diazo compounds play as electrophiles to react with nucleophilic sulfoxonium ylides. The reaction mechanism is supported by the exptl. evidence.Trimethylsulfoxonium iodide(cas: 1774-47-6SDS of cas: 1774-47-6) was used in this study.
Trimethylsulfoxonium iodide(cas: 1774-47-6) is a sulfoxonium salt. It is used to generate dimethyloxosulfonium methylide by reaction with sodium hydride. The latter compound is used as a methylene-transfer reagent, and is used to prepare epoxides.SDS of cas: 1774-47-6
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com