Recent advances in organic reactions involving elemental sulfur

TB Nguyen - Advanced Synthesis & Catalysis, 2017 - Wiley Online Library
Elemental sulfur has been known since Antiquity and found widespread applications in the
preparation of black gunpowder, the synthesis of sulfuric acid as well as other sulfur …

Synthesis and Reactivity of 3H-1,2-dithiole-3-thiones

OA Rakitin - Molecules, 2021 - mdpi.com
3 H-1, 2-Dithiole-3-thiones are among the best studied classes of polysulfur-containing
heterocycles due to the almost explosive recent interest in these compounds as sources of …

Catalytic (3+ 2) umpolung annulations of α-thioacyl carbenes with aryl isothiocyanates

Z Dong, MY Ma, J Xu, Z Yang - Chemical Communications, 2022 - pubs.rsc.org
1, 2, 3-Thiadiazoles serve as masked S-electrophilic thia-1, 3-dipoles. Under
rhodium/racemic BINAP catalysis, they undergo denitrogenative (3+ 2) umpolung …

Selective [3+ 2] cycloaddition of cyclopropenone derivatives and elemental chalcogens

J Wu, WX Gao, XB Huang, YB Zhou, MC Liu… - Organic …, 2020 - ACS Publications
A highly efficient method is disclosed for the synthesis of 1, 2-dichalcogen heterocycles via
[3+ 2] cycloaddition of cyclopropenone derivatives and elemental chalcogens. Different from …

Visible-light photocatalysis of Eosin Y: HAT and complementing MS-CPET strategy to trifluoromethylation of β-ketodithioesters with Langlois' reagent

S Soni, P Pali, MA Ansari, MS Singh - The Journal of Organic …, 2020 - ACS Publications
A metal-and oxidant-free photoinduced strategy for thioxo sulfur-selective
trifluoromethylation of β-ketodithioesters at room temperature is reported. Excellent Z/E …

Synthesis of 3,4-Dihydro-2H-1,3-thiazines from α-Enolic Dithioesters and 1,3,5-Triazinanes via a Formal (3 + 3) Annulation Reaction

B Cheng, H Li, J Hou, X Zhang, Y He… - The Journal of …, 2020 - ACS Publications
The synthesis of 3, 4-dihydro-2 H-1, 3-thiazines from α-enolic dithioesters and 1, 3, 5-
triazinanes has been achieved via a formal (3+ 3) annulation reaction under thermal …

Copper‐Catalyzed Defluorinative Thioannulation of Trifluoropropynes for the Synthesis of 1, 2‐Dithiole‐3‐thiones

F Wei, XQ Shen, XH Zhang… - Advanced Synthesis & …, 2018 - Wiley Online Library
A simple and practical strategy for the preparation of 1, 2‐dithiole‐3‐thiones via copper‐
catalyzed defluorinative thioannulation of trifluoropropynes has been developed using …

Access to Fully Substituted Thiazoles and 2,3-Dihydrothiazoles via Copper-Catalyzed [4 + 1] Heterocyclization of α-(N-Hydroxy/aryl)imino-β-oxodithioesters with α …

A Srivastava, G Shukla, D Yadav… - The Journal of Organic …, 2017 - ACS Publications
An efficient chemoselective practical route to fully substituted thiazoles and 2, 3-
dihydrothiazoles has been devised by [4+ 1] heterocyclization of α-(N-hydroxy/aryl) imino-β …

Copper-Catalyzed Tandem Sulfuration/Annulation of Propargylamines with Sulfur via C–N Bond Cleavage

HH Xu, XH Zhang, XG Zhang - The Journal of Organic Chemistry, 2019 - ACS Publications
Copper-catalyzed aerobic oxidative sulfuration and annulation of propargylamines with
elemental sulfur is described. The tandem reaction involves C–N bond cleavage and the …

Magnesium catalyzed [3+ 3] heteroannulation of α-enolic dithioesters with MBH acetate: access to functionalized 3, 4-dihydro-2 H-thiopyrans

S Soni, G Shukla, MS Singh - Organic & Biomolecular Chemistry, 2022 - pubs.rsc.org
Magnesium catalysis proved to be efficient towards [3+ 3] chemo-and diastereoselective
heteroannulation employing racemic Morita–Baylis–Hillman (MBH) acetate as the C3 unit …