Thermolysis of bismuth(III) dithiolates toward cyclic disulfides with tunable ring size and near-unity conversion

Xianglong Liu; Tingting Wang; Longhua Li; Junli Wang

doi:10.1039/d5cc01572c

January 1, 2025Chemical Communications

Thermolysis of bismuth(III) dithiolates toward cyclic disulfides with tunable ring size and near-unity conversion

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Key Points

Cyclic disulfides are produced with 95-100% conversion efficiency, demonstrating the effectiveness of the thermolysis method.
The process utilizes bismuth(III) dithiolates at temperatures between 145-170 °C to facilitate the conversion.
A dithiyl diradical cyclization pathway underlies the formation of cyclic disulfides, pointing to an efficient mechanism.
The low formation energy allows for customizable ring sizes, supporting various applications in synthetic chemistry.

Implication

Solventless thermolysis generates cyclic disulfides with up to 100% conversion efficiency, indicating potential for tunable ring sizes.

Abstract

Solventless thermolysis of bismuth(III) dithiolates Bi2[S(CH2)nS]3 at 145-170 °C is designed to prepare cyclic disulfides ((CH2)nS2, n = 3, 4 and 5) with 95-100% conversion efficiency, whose production is enabled by their low formation energy and a dithiyl diradical cyclization pathway.

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Cite This Study

Liu et al. (2025) studied this question.

synapsesocial.com/papers/68a368840a429f797332d86b https://doi.org/10.1039/d5cc01572c

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Thermolysis of bismuth(III) dithiolates toward cyclic disulfides with tunable ring size and near-unity conversion

Key Points

Implication

Abstract

Discussion

Cite This Study

Thermolysis of bismuth(III) dithiolates toward cyclic disulfides with tunable ring size and near-unity conversion

Key Points

Implication

Abstract

Discussion

Cite This Study

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