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Updated: Jun 2, 2026

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
Published on: April 9, 2018
2-(2,2-Dibromo-ethen-yl)thio-phene.
This study introduces a novel dibrominated thiophene derivative, a key building block for creating π-conjugated redox-active materials. Its unique structure facilitates efficient synthesis of ethynyl-thiophene via dehydro-bromination, enabling advanced cross-coupling reactions.
Area of Science:
- Organic Chemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Thienyl oligomers are crucial in developing redox-active materials.
- Efficient synthesis of functionalized thiophenes is essential for π-conjugated systems.
Purpose of the Study:
- To synthesize and characterize a novel dibrominated thiophene derivative.
- To explore its utility as a versatile building block in organic synthesis and materials science.
Main Methods:
- Synthesis of the title compound C(6)H(4)Br(2)S.
- Dehydro-bromination using n-butyl-lithium.
- Structural analysis via X-ray crystallography.
Main Results:
- The compound C(6)H(4)Br(2)S was successfully prepared.
- Dehydro-bromination yielded 2-ethynyl-thiophene, a valuable intermediate.
- The thienyl heterocycle and vinyl moiety exhibit near-coplanarity (3.5°).
Conclusions:
- The dibrominated thiophene is a versatile precursor for π-conjugated systems.
- Its reactivity enables facile synthesis of ethynyl-thiophene for cross-coupling reactions.
- The near-planar structure is beneficial for electronic applications.
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