540492-15-7

Basic information

• Product Name: 1-(4-n-pentyloxyphenyl)-2-trimethylsilylacetylene
• Synonyms: 1-(4-n-pentyloxyphenyl)-2-trimethylsilylacetylene
• CAS NO: 540492-15-7
• Molecular Weight: 260.451
• Mol File: 540492-15-7.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: 1-(4-n-pentyloxyphenyl)-2-trimethylsilylacetylene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(4-n-pentyloxyphenyl)-2-trimethylsilylacetylene(540492-15-7)
• EPA Substance Registry System: 1-(4-n-pentyloxyphenyl)-2-trimethylsilylacetylene(540492-15-7)

Safety Data

• Hazardous Substances Data: 540492-15-7(Hazardous Substances Data)

Upstream product

• 30752-18-2 1-bromo-4-pentyloxybenzene 
• 1066-54-2 trimethylsilylacetylene 
• 540-38-5 p-Iodophenol 
• 116223-55-3 1-iodo-4- (pentyloxy) benzene 
• 110-53-2 1-Bromopentane 

Downstream Products

• 120893-63-2 1-(4-cyanophenyl)oxypentane 
• 1562687-86-8 1,4-bis[4(n-pentyloxy)phenyl]butane 
• 34296-23-6 1,2-bis(4-n-pentyloxyphenyl)acetylene 
• 79887-16-4 1-ethynyl-4-(pentyloxy)benzene 

Relevant articles and documents

Highly ordered smectic structures of disc-rod luminescent liquid crystals: The role of the tolane group

Two novel calamitic tolane luminogen-modified triphenylene-based discotic luminescent liquid-crystals (LLC) were rationally designed and synthesized to investigate the self-assembly competition between triphenylene discogens and tolane calamitic mesogens.

Aerobic oxynitration of alkynes with tBuONO and TEMPO

An efficient method for stereoselective nitroaminoxylation of alkyne has been reported. The reaction enjoys a broad substrate scope, good functional group tolerance, and high yields. Synthetically useful α-nitroketones can be accessed through these products in a single step.

Synthesis of diphenyl-diacetylene-based nematic liquid crystals and their high birefringence properties

We synthesized two series of diphenyl-diacetylene (DPDA)-based materials with alkoxy and alkyl tails of length m (DPDA-OCm and DPDA-Cm, respectively), and measured their nematic-phase birefringence (Δn) as a function of wavelength and temperature. We found that Δn decreases with an increase in m, possibly by a dilution effect of the low-Δn alkyl tail. Further, of the two series, Δn was found to be relatively higher in the DPDA-OCm materials, with the highest value of 0.4 obtained for DPDA-OC1 at 550 nm at 10 °C below the isotropic-to-nematic transition temperature. Further, we observed the temperature dependence for Δn, which is proportional to the order parameter (s). From extrapolation to s = 1 (the perfect orientation state), it is speculated that the DPDA-O moiety has the potential to afford a very large Δn of 0.9. The Royal Society of Chemistry 2012.