39604-97-2

Basic information

• Product Name: 4-n-Propoxyphenylacetylene
• Synonyms: 4-n-propoxyphenylacetylene;1-ETH-1-YNYL-4-PROPOXYBENZENE;P-ETHYNYLPROPOXYBENZENE;4-Ethynylpropoxybenzene;1-Ethynyl-4-propoxybenzene;4-Propoxyphenylacetylene;Benzene, 1-ethynyl-4-propoxy-
• CAS NO: 39604-97-2
• Molecular Formula: C₁₁H₁₂O
• Molecular Weight: 160.21
• Mol File: 39604-97-2.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 93 °C
• Flash Point: 88.6 °C
• Appearance: /
• Density: 0.98 g/cm³
• Vapor Pressure: 0.0819mmHg at 25°C
• Refractive Index: 1.518
• Storage Temp.: Keep Cold
• CAS DataBase Reference: 4-n-Propoxyphenylacetylene(CAS DataBase Reference)
• NIST Chemistry Reference: 4-n-Propoxyphenylacetylene(39604-97-2)
• EPA Substance Registry System: 4-n-Propoxyphenylacetylene(39604-97-2)

Safety Data

• Hazard Codes: Xi
• Safety Statements: 24/25
• Hazardous Substances Data: 39604-97-2(Hazardous Substances Data)

Usage

Chemical Properties

Pale yellow liquid

InChI:InChI=1/C11H12O/c1-3-9-12-11-7-5-10(4-2)6-8-11/h2,5-8H,3,9H2,1H3

Upstream product

• 95306-91-5 3-(4-Propoxy-phenyl)-prop-2-yn-1-ol 
• 7400-08-0 para-coumaric acid 
• 69033-81-4 4-propoxycinnamic acid 
• 540-38-5 p-Iodophenol 
• 469859-73-2 1-propoxy-4-[2-(trimethylsilyl)ethynyl]benzene 
• 95306-89-1 1-iodo-4-propyloxybenzene 
• 39969-56-7 1-bromo-4-propoxybenzene 
• 106-41-2 4-bromo-phenol 
• 107-19-7 propargyl alcohol 

Downstream Products

• 469859-07-2 1-[4-(tert-butoxycarbonyloxy)phenyl]-2-(4-n-propyloxyphenyl)acetylene 
• 915946-83-7 C₂₉H₃₆N₄O₁₁ 
• 1186638-12-9 3-chloro-5-((4-propoxyphenyl)ethynyl)picolinonitrile 
• 69374-86-3 1,4-bis(4-propoxyphenyl)buta-1,3-diyne 
• 1363436-81-0 N-{1-Methyl-2-[4-(4-propoxy-phenylethynyl)-phenyl]-ethyl}-acetamide 
• 1610734-91-2 5-(4-propoxyphenyl)-3-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)isoxazole 
• 1536438-65-9 (5-(4-propoxyphenyl)isoxazol-3-yl)methanol 
• 1105062-77-8 methanesulfonic acid 5-(4-propoxy-phenyl)-isoxazol-3-ylmethyl ester 

Relevant articles and documents

Preparation and properties of high birefringence phenylacetylene isothiocyanato-based blend liquid crystals

A series of compounds of with high birefringence containing alkoxy–phenylacetylene–isothiocyanato structure were synthesized and characterized. The chemical structures of these compounds were confirmed by FT-IR and 1H-NMR, and transition temperatures and birefringence were measured. One of these compounds with good liquid crystal property and high birefringence was mixed with host liquid crystal to form blend liquid crystal. The effects of the concentration of the compound on phase temperature range, birefringence, resistivity, dielectric anisotropy and photoelectric properties were discussed. The results showed that blend liquid crystal (with 7 wt% compound) exhibited excellent comprehensive performance.

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.

Optically active compound and photosensitive resin composition

A photoactive compound is used in combination with a photosensitizer, represented by the following formula (1): A?[(J)m?(X-Pro)]n ??(1) wherein A represents a hydrophobic unit comprising at least one kind of hydrophobic groups selected from a hydrocarbon group and a heterocyclic group, J represents a connecting group, X-Pro represents a hydrophilic group protected by a protective group Pro which is removable by light exposure, m represents 0 or 1, and n represents an integer of not less than 1. The protective group Pro may be removable by light exposure in association with the photosensitizer (especially, a photo acid generator), or may be a hydrophobic protective group. The hydrophilic group may be a hydroxyl group or a carboxyl group. The photoactive compound has high sensitivity to a light source of short wavelength beams, for resist application, therefore, the photoactive compound is advantageously used for forming a pattern with high resolution.