221292-51-9

Basic information

• Product Name: Silane, [(4-ethynyl-2,5-dipropoxyphenyl)ethynyl]tris(1-methylethyl)-
• CAS NO: 221292-51-9
• Molecular Formula: C25H38O2Si
• Molecular Weight: 398.661
• Mol File: 221292-51-9.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Silane, [(4-ethynyl-2,5-dipropoxyphenyl)ethynyl]tris(1-methylethyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Silane, [(4-ethynyl-2,5-dipropoxyphenyl)ethynyl]tris(1-methylethyl)-(221292-51-9)
• EPA Substance Registry System: Silane, [(4-ethynyl-2,5-dipropoxyphenyl)ethynyl]tris(1-methylethyl)-(221292-51-9)

Safety Data

• Hazardous Substances Data: 221292-51-9(Hazardous Substances Data)

Upstream product

• 221292-49-5 1,4-bis(propyloxy)-2-iodo-5-trimethylsilylacetylenebenzene 
• 221292-48-4 1,4-bis(propyloxy)-2,5-diiodobenzene 
• 406721-41-3 1-bromo-2,5-dipropoxy-4-triisopropylsilylethynylbenzene 
• 406721-40-2 1-bromo-2,5-dipropoxy-4-trimethylsilylethynylbenzene 
• 123-31-9 hydroquinone 
• 3898-41-7 1,4-dipropoxybenzene 
• 89343-06-6 tris-iso-propylsilyl acetylene 
• 216306-45-5 1-bromo-4-iodo-2,5-dipropoxybenzene 
• 216306-43-3 1-bromo-2,5-dipropoxybenzene 
• 221292-50-8 1,4-dipropyloxy-2-(2-triisopropylsilylethynyl)-5-(2-trimethylsilylethinyl)benzene 

Downstream Products

• 654074-75-6 methyl-4-(2,6-bis{2-[2,5-dipropyloxy-4-(2-triisopropylsilylethynyl)phenyl]ethynyl}-4-methyl)phenoxybutyrate 
• 773060-38-1 1-Ethynyl-4-phenylethynyl-2,5-dipropoxy-benzene 
• 773060-40-5 4-(4-ethynyl-2,5-dipropoxy-phenylethynyl)-benzonitrile 
• 1143440-26-9 C₄₂H₆₂O₄Si₂ 
• 500213-82-1 1,1'-bis([2,5-dipropoxy-4-(triisopropylsilylethynyl)phenyl]ethynyl)ferrocene 
• 406721-52-6 1-[4-(2,5-dipropoxyphenylethynyl)-2,5-dipropoxyphenylethynyl]-4-[2,5-dipropoxy-4-(2,5-dipropoxy-4-triisopropylsilylethynylphenylethynyl)phenylethynyl]-2,5-dipropoxybenzene 
• 406721-53-7 1-[4-(2,5-dipropoxyphenylethynyl)-2,5-dipropoxyphenylethynyl]-4-[4-(2,5-dipropoxy-4-ethynylphenylethynyl)phenylethynyl]-2,5-dipropoxybenzene 
• 350589-43-4 3,5-bis-[2-(2,5-dipropyloxy-4-{2-[3-(tetrahydro-2H-pyran-2-yloxy)-5-(2-trimethylsilylethynyl)phenyl]ethynyl}phenyl)ethynyl]toluene 
• 350589-39-8 3,5-bis-[2-(2,5-dipropyloxy-4-{2-[5-iod-3-(tetrahydro-2H-pyran-2-yloxy)phenyl]ethynyl}phenyl)ethynyl]toluene 
• 350589-32-1 3,5-bis-[2-(2,5-dipropyloxy-4-ethynylphenyl)ethynyl]toluene 
• 263706-96-3 3,5-bis-[2-(2,5-dipropyloxy-4-{2-[3-(tetrahydro-2H-pyran-2-yloxy)-5-ethynylphenyl]ethynyl}phenyl)ethynyl]toluene 
• 642486-99-5 methyl 4-(2,6-bis-{2-[2,5-dipropyloxy-4-(2-triisopropylsilylethynyl)phenyl]-ethynyl}-4-tert-butylphenoxy)-butyrate 
• 406721-51-5 1-[4-(4-bromo-2,5-dipropoxyphenylethynyl)-2,5-dipropoxyphenylethynyl]-4-[2,5-dipropoxy-4-(triisopropylsilylethynyl)phenylethynyl]-2,5-dipropoxybenzene 
• 350589-29-6 3,5-bis-{2-[2,5-dipropyloxy-4-(2-triisopropylsilylethynyl)phenyl]ethynyl}toluene 

Relevant articles and documents

Rigid phenylene ethynylene units linked by a V-shaped centre. An approach to biaxial nematogens?

Encouraged by theoretical predictions that nematic phases formed from V-shaped compounds could be biaxial, shape-persistent phenylene ethynylene arms linked by 1,3-phenylene, 4,4′-diphenylenemethane and 3,6-fluorenone units have been synthesized. Crystall

Synthesis, aggregation, and adsorption phenomena of shape-persistent macrocycles with extraannular polyalkyl substituents

The synthesis of shape-persistent macrocycles based on the phenyl-ethynyl backbone containing various extraannular alkyl side chains is described. Although compound solubility increases with increasing size of the side groups, decreasing the solvent polar