188636-69-3

Basic information

• Product Name: Silane, [(3-ethynyl-5-methylphenyl)ethynyl]tris(1-methylethyl)-
• CAS NO: 188636-69-3
• Molecular Formula: C20H28Si
• Molecular Weight: 296.528
• Mol File: 188636-69-3.mol

Chemical Properties

• CAS DataBase Reference: Silane, [(3-ethynyl-5-methylphenyl)ethynyl]tris(1-methylethyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Silane, [(3-ethynyl-5-methylphenyl)ethynyl]tris(1-methylethyl)-(188636-69-3)
• EPA Substance Registry System: Silane, [(3-ethynyl-5-methylphenyl)ethynyl]tris(1-methylethyl)-(188636-69-3)

Safety Data

• Hazardous Substances Data: 188636-69-3(Hazardous Substances Data)

Upstream product

• 89343-06-6 tris-iso-propylsilyl acetylene 
• 116632-38-3 1-bromo-3-iodo-5-methylbenzene 
• 220117-60-2 1-Methyl-3-[(triisopropylsilanyl)-ethynyl]-5-trimethylsilanylethynyl-benzene 

Downstream Products

• 220117-63-5 3,5-Bis-[2-(4-{2-[3-methyl-5-(2-triisopropylsilylethynyl)phenyl]ethynyl}-5-propyloxy-2-(tetrahydro-2H-pyran-2-yloxy)phenyl)ethynyl]toluene 
• 220117-64-6 3,5-Bis-(2-{4-[2-(3-ethynyl-5-methylphenyl)ethynyl]-5-propyloxy-2-(tetrahydro-2H-pyran-2-yloxy)phenyl}ethynyl)toluene 
• 220117-61-3 2-(5-{3-Methyl-5-[(triisopropylsilanyl)-ethynyl]-phenylethynyl}-4-propoxy-2-trimethylsilanylethynyl-phenoxy)-tetrahydro-pyran 
• 220117-62-4 {3-[4-Ethynyl-2-propoxy-5-(tetrahydro-pyran-2-yloxy)-phenylethynyl]-5-methyl-phenylethynyl}-triisopropyl-silane 

Relevant articles and documents

Synthesis and properties of shape-persistent macrocyclic amphiphiles with switchable amphiphilic portions

The bidirectional- and convergent-type syntheses of functionalized kinked phenyl-ethynyl oligomers containing ethynyl end groups are described. Key steps in both approaches are the bromo-iodo selectivity of the Hagihara coupling and the possibility to deprotect acetylenes containing different silyl protective groups stepwise. Glaser coupling of the oligomeric bisacetylenes results in the corresponding macrocycles that contain polar and nonpolar side groups in a switchable arrangement.