Product Name: 3,6-Diethynylcarbazole
Chinese Name: 3,6-Diethynylcarbazole
CAS No.: 909342-65-0

Purity: 96%
Molecular Formula: C16H9N
Molecular Weight: 215.25

Melting Point: 197.0 to 201.0 °C

SMILES: C#CC1=CC2=C(NC3=C2C=C(C#C)C=C3)C=C1

Product Description:
3,6-Diethynylcarbazole is an organic intermediate used in materials science and organic electronics.

Synthesis:
Can be synthesized starting from 3,6-dibromocarbazole by first preparing 3,6-bis(trimethylsilylethynyl)carbazole, followed by the removal of the trimethylsilyl groups to yield 3,6-diethynylcarbazole.

Preparation Method:
In a flame-dried 100 mL round-bottom Schlenk flask, 3,6-dibromocarbazole (1.0 g, 3.07 mmol) and 2 mL of trimethylsilylacetylene are dissolved in 40 mL of freshly distilled, dry triethylamine. A mixture of 100 mg [(PPh3)2PdCl2] (0.14 mmol), 20 mg triphenylphosphine (0.07 mmol), and 20 mg CuI (0.1 mmol) is added, and the suspension is stirred at reflux under a nitrogen atmosphere for 12 hours. After removing volatile solvents, the product is extracted using 100 mL of dichloromethane.

Applications:
- Organic intermediate
- Materials science
- Organic electronics
- Semiconductor materials
- Chemical research

Product Category: Building Blocks / Organic Intermediates / Materials Science / Organic Electronics

Features:
- Carbazole derivative
- Ethynyl functional groups
- Suitable for conjugated polymer synthesis

Note: For research and development purposes only.

Product Classification:
- Building Blocks
- Organic Intermediates
- Materials Science Compounds
- Organic Electronics Materials