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Updated: Sep 17, 2025

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
Published on: April 9, 2018
Zinc-Promoted Reductive Thiolation of Sulfonated Alcohols to Access C(sp3)-Enriched Sulfides
Yingjie Wu1, Han Qian1, Wenlei Zhang1
1College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, Zhejiang 311121, People's Republic of China.
Abstract:
We report a Zn-mediated reductive cross-coupling of alkyl sulfonates with N-sulfenylsuccinimides or thiosulfonates for the efficient construction of C(sp3)-enriched sulfides. This method provides rapid access to structurally diverse unsymmetrical alkyl sulfides with broad functional group tolerance. The synthetic utility of this protocol is further demonstrated through scalable synthesis, late-stage modification of complex bioactive molecules, and downstream derivatizations. Preliminary mechanistic studies suggest the formation of a highly reactive zinc thiolate intermediate, generated from the reaction of Zn with the sulfur-transfer reagent. The in situ-formed zinc thiolates exhibit considerable nucleophilic reactivity for SN2-type thiolation of a series of primary and secondary alkyl sulfonates that are readily prepared from abundant alkyl alcohols.
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Grignard reagents are a source of carbanions and function as nucleophiles. The mechanism begins with the nucleophilic attack by the carbanion at the carbonyl carbon of the acid halide to form a tetrahedral intermediate. Next, the carbonyl group is re-formed, and the halide ion departs,...