74029-40-6

Basic information

• Product Name: 1,4-diethynyl-2,5-dimethoxybenzene
• Synonyms: 1,4-diethynyl-2,5-dimethoxybenzene
• CAS NO: 74029-40-6
• Molecular Formula: C₁₂H₁₀O₂
• Molecular Weight: 186.21
• Mol File: 74029-40-6.mol
• Article Data: 15

Chemical Properties

• Melting Point: 153-154 °C(Solv: carbon tetrachloride (56-23-5))
• Boiling Point: 310.4±42.0 °C(Predicted)
• Appearance: /
• Density: 1.09±0.1 g/cm3(Predicted)
• CAS DataBase Reference: 1,4-diethynyl-2,5-dimethoxybenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-diethynyl-2,5-dimethoxybenzene(74029-40-6)
• EPA Substance Registry System: 1,4-diethynyl-2,5-dimethoxybenzene(74029-40-6)

Safety Data

• Hazardous Substances Data: 74029-40-6(Hazardous Substances Data)

Usage

General Description

1,4-diethynyl-2,5-dimethoxybenzene is a chemical compound with the molecular formula C12H10O2. It is a yellow crystalline solid that is primarily used as a building block in organic synthesis. 1,4-diethynyl-2,5-dimethoxybenzene is known for its unique structure, with two alkyne groups and two methoxy groups attached to a benzene ring. It has been studied for its potential applications in materials science, particularly as a precursor for the synthesis of conjugated polymers and organic electronic materials. Additionally, 1,4-diethynyl-2,5-dimethoxybenzene has also shown promising properties for use in pharmaceutical and medicinal chemistry research. However, caution should be taken when handling this compound due to its potential hazardous nature.

Upstream product

• 2674-34-2 1,4-dibromo-2,5-dimethoxybenzene 
• 1066-54-2 trimethylsilylacetylene 
• 78889-43-7 2,5-bis(3'-N-morpholino-1'-propynyl)-1,4-dimethoxybenzene 
• 51560-21-5 1,4-diiodo-2,5-dimethoxybenzene 
• 294674-95-6 1,4-bis(tri-methylsilylethynyl)-2,5-bis(methoxyl)benzene 
• 78889-39-1 2,5-bis(3'-hydroxy-3'-methyl-1'-butynyl)-1,4-dimethoxybenzene 
• 78889-36-8 2,5-di(formylethynyl)-1,4-dimethoxybenzene 
• 1276582-08-1 (2,5-dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl)bis(triisopropylsilane) 
• 150-78-7 1,4-dimethoxybezene 

Downstream Products

• 1146301-60-1 1,4-[RuCl(CO)(PMe₃)3CH=CH]2C₆H₂-2,5-(OCH₃)2 
• 1276582-20-7 4,4'-(2,5-dimethoxy-1,4-phenylene)bis(1-(5-bromo-2,4-dimethoxyphenyl)-1H-1,2,3-triazole) 
• 1190438-53-9 4,4'-((2,5-dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzoic acid 
• 1262134-07-5 1,4-diethoxy-2,5-bis(4-bromophenyleethynyl)benzene 
• 1262134-08-6 1,4-dimethoxy-2,5-bis((4-ethynylphenyl)ethynyl)benzene 
• 1190963-83-7 4,4’-((2,5-dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzaldehyde 
• 1430403-83-0 2,5-dimethoxy-1,4-bis(1-propynyl)benzene 

Relevant articles and documents

Butterfly-Like Triarylamines with High Hole Mobility and On/Off Ratio in Bottom-Gated OFETs

Highly π-extended butterfly-shaped triarylamine dyads with aryleneethynylene spacer were constructed using an efficient synthetic route. These aryleneethynylene-bridged dyads are highly fluorescent and exhibited high HOMO levels, and low bandgaps, which a

Synthesis and optical properties of a novel sugar coated poly(p-phenyleneethynylene) effectively quenched by concanavalin A

The synthesis of a novel sugar coated poly(p-phenyleneethynylene) (PPE) via Pd-catalyzed Sonogashira reaction and its subsequent interaction with concanavalin A (Con A) are described. UV-Vis and fluorescence spectra were employed to investigate the respon

Tuning the backbones and side chains of cationic meta-linked poly(phenylene ethynylene)s: Different conformational modes, tunable light emission, and helical wrapping of multi-walled carbon nanotubes

We have an ongoing interest in the design and control of helical conformation of water-soluble meta-linked poly(phenylene ethynylene)s (PPEs) and the further development of novel functional materials. Four cationic meta-linked PPEs (P1′-P4′) were synthesized to study the influence of differences in the backbone and side chain structure on their conformations. For P1′ and P4′ without side chains on the para-phenylene units, fluorescence spectroscopic investigations indicated obvious intramolecular helical folding, whereas for P2′ and P3′ with nonpolar and polar side chains on the para-phenylene units respectively, a significantly different conformational mode, namely, cofacial intermolecular aggregation was suggested. The side chains on the para-phenylene units of P2′ and P3′ may be located in the interior cavity of helix and induce steric effect on the formation of helix. However, the introduction of 2,1,3-benzothiadiazole (BT), a low energy gap unit, into the backbone of P4′ showed little influence on the formation of helix despite its larger and more rigid structure than the phenylene unit. Thus, the light emission of these polymers can be tuned in the range from blue, green to yellow with the changes of conformational modes. Moreover, the functionalization of multi-walled carbon nanotubes (MWCNTs) by P4′ in methanol and water, and by using its neutral precursory polymer P4 in tetrahydrofuran was explored through transmission electron microscopy and fluorescence spectroscopy. P4′ was directly observed to individualize MWCNT by forming a monolayer helical wrapping on the nanotube surface, which may be attributed to the backbone flexibility of meta-linked PPE and the strong π?π interactions between the PPE backbone and the CNT surface. Moreover, P4′ served as a better dispersing agent for MWCNT than P4, suggesting that the cationic side groups may act as solubilizing groups which also separated the individual nanotubes because of charge repulsion.