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Making Flavone Thioethers Using Halides and Powdered Sulfur or Na2S2O3
Qiujie Tang1, Zhaogang Bian1, Wei Wu1
1Pharmacy School, Jiangsu University , Xuefu Road 301, Zhenjiang City, Jiangsu 212013, China.
A novel sulfenylation method efficiently creates flavone thioether derivatives using simple, eco-friendly conditions. This approach yields good amounts of C-S substituted flavones, expanding synthetic organic chemistry options.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
Background:
- Carbon-sulfur (C-S) bond formation is crucial in organic synthesis.
- Existing sulfenylation methods often require complex conditions or reagents.
Purpose of the Study:
- To develop a new, efficient, and environmentally friendly sulfenylation method.
- To synthesize flavone thioether derivatives with regioselective C-S bonds.
Main Methods:
- Utilizing aromatic or alkyl halides, elemental sulfur (S), and sodium thiosulfate (Na2S2O3) as reactants.
- Conducting the reaction under mild and simple conditions.
Main Results:
- Achieved good yields of regioselectively C-alkyl-S and C-aryl-S substituted flavones.
- Demonstrated a potentially scalable and environmentally conscious synthetic route.
Conclusions:
- The developed method offers a valuable addition to existing sulfenylation techniques.
- This approach is suitable for generating diverse flavone thioether derivatives.
- The method shows promise for large-scale synthesis applications.
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