778593-53-6

Basic information

• Product Name: 4-((4-ethynylphenyl)ethynyl)-N,N-diMethylbenzenaMine
• Synonyms: 4-((4-ethynylphenyl)ethynyl)-N,N-diMethylbenzenaMine;4-((4-Ethynylphenyl)ethynyl)-N,N-dimethylaniline
• CAS NO: 778593-53-6
• Molecular Formula: C₁₈H₁₅N
• Molecular Weight: 245.3184
• Mol File: 778593-53-6.mol
• Article Data: 5

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-((4-ethynylphenyl)ethynyl)-N,N-diMethylbenzenaMine(CAS DataBase Reference)
• NIST Chemistry Reference: 4-((4-ethynylphenyl)ethynyl)-N,N-diMethylbenzenaMine(778593-53-6)
• EPA Substance Registry System: 4-((4-ethynylphenyl)ethynyl)-N,N-diMethylbenzenaMine(778593-53-6)

Safety Data

• Hazardous Substances Data: 778593-53-6(Hazardous Substances Data)

Upstream product

• 624-38-4 para-diiodobenzene 
• 924892-34-2 [4-(4-iodophenylethynyl)phenyl]dimethylamine 
• 993-07-7 trimethylsilan 
• 586-77-6 4-bromo-N,N-dimethylaniline 
• 40230-97-5 N,N-dimethyl-4-[(trimethylsilyl)ethynyl]aniline 
• 910467-59-3 N,N-dimethyl-4-{[4-[(trimethylsilyl)ethynyl]phenyl]ethynyl}aniline 
• 17573-94-3 4-ethynyl-N,N-dimethylaniline 
• 56512-48-2 4-(3-methyl-3-hydroxy-1-butynyl)-N,N-dimethylaniline 
• 698-70-4 4-Iodo-N,N-dimethylaniline 
• 885325-36-0 1-[p-(3-hydroxy-3-methyl-1-butynyl)phenyl]-2-(p-N,N-dimethylaminophenyl)ethyne 

Downstream Products

• 899823-37-1 mer,trans-[(PMe₃)3Rh(CCC₆H₄CCC₆H₄-4-NMe₂)2H] 
• 1374260-68-0 C₅₄H₃₆N₆ 
• 858363-73-2 dimethyl-{4-[4-(4-trimethylsilanylethynyl-phenylethynyl)-phenylethynyl]-phenyl}-amine 
• 1374260-70-4 C₄₂H₂₈N₆ 
• 1620006-24-7 C₄₄H₃₀N₄ 
• 1127353-44-9 4-[4-(4-dimesitylborylphenylethynyl)phenylethynyl]-N,N-dimethylaniline 

Relevant articles and documents

Thermochromic and highly tunable color emitting bis-tolane based liquid crystal materials for temperature sensing devices

The luminescent compounds based on the D-π-A system consisting of substituted pyrrole as acceptor, π conjugated bis-tolane and -OMe, -N(CH3)2, -N(Ph)2 at termini acting as donors have been synthesized. On heating, all the compounds exhibited distinct mesomorphic behavior depending upon donating groups and substituents at the acceptor unit. These luminescent liquid crystals exhibited emission from blue, green to reddish orange with high quantum efficiency in solid as well in solutions state. We discovered the rarely reported three membered ring interactions between the Br at alpha position of pyrrole and acetylene bond and their impact on luminescence efficiency via single crystal structure of 2Br–CN–N(CH3)2 and 2Br–CN–N(Ph)2. Furthermore, the thermochromic behavior of these LLCs compounds has been explored, especially CN–N(Ph)2, its reddish orange emission changed to blue at 240 °C–250 °C in pure state, while in dimethyl silicone polymer (PDMS) film, it switched to blue at 200 °C and completely vanished at 240 °C. These simple and highly emissive compounds display outstanding thermochromic properties above 200 °C, thus will be potentiality valuable for high temperature sensing devices.

Convenient methods for preparing ?-conjugated linkers as building blocks for modular chemistry

Simple, straightforward and optimized procedures for preparing extended ?-conjugated linkers are described. Either unsubstituted or 4-donor substituted ?-linkers bearing a styryl, biphenyl, phenylethenylphenyl, and phenylethynylphenyl ?-conjugated backbone are functionalized with boronic pinacol esters as well as with terminal acetylene moieties allowing their further use as building blocks in Suzuki-Miyaura or Sonogashira coupling reactions.

Synthesis and optical properties of conjugated N,N-dimethyl and thienyl end-capped 2,5-(arylethynyl)thiophene oligomer structures

End-capped (N,N-dimethylaminophenyl) and 2′-thienylethynyl 2,5-thiophene oligomer structures were synthesized by heterocoupling between the terminal acetylenes such as: p-(N,N-dimethylaminophenyl)ethyne (3) [or 1-(p-(N,N-dimethylaminophenyl)-2-p-(ethynylp