2789-88-0

Basic information

• Product Name: DI-P-TOLYLACETYLENE
• Synonyms: DI-P-TOLYLACETYLENE;1,2-di-p-tolylethyne
• CAS NO: 2789-88-0
• Molecular Formula: C₁₆H₁₄
• Molecular Weight: 206.28236
• Mol File: 2789-88-0.mol
• Article Data: 191

Chemical Properties

• Melting Point: 118-134 °C(Solv: ligroine (8032-32-4))
• Boiling Point: 130-145 °C(Press: 0.2 Torr)
• Appearance: /
• Density: 1.03±0.1 g/cm3(Predicted)
• CAS DataBase Reference: DI-P-TOLYLACETYLENE(CAS DataBase Reference)
• NIST Chemistry Reference: DI-P-TOLYLACETYLENE(2789-88-0)
• EPA Substance Registry System: DI-P-TOLYLACETYLENE(2789-88-0)

Safety Data

• Hazardous Substances Data: 2789-88-0(Hazardous Substances Data)

Usage

General Description

DI-P-TOLYLACETYLENE is a chemical compound with the molecular formula C16H14. It is a colorless to pale yellow liquid with a strong aromatic odor. DI-P-TOLYLACETYLENE is used as a precursor in the production of various organic compounds, including pharmaceuticals, dyes, and pesticides. It is also used as a building block in the synthesis of complex molecules in organic chemistry. Additionally, DI-P-TOLYLACETYLENE is used as an intermediate in the manufacture of specialty chemicals and in research and development. However, it should be handled with care as it can be harmful if inhaled or ingested, and may cause skin and eye irritation.

Upstream product

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• 7208-11-9 4,4'-(2-bromoethene-1,1-diyl)bis(methylbenzene) 
• 766-97-2 4-n-methylphenylacetylene 
• 109-04-6 2-bromo-pyridine 
• 624-31-7 4-tolyl iodide 
• 471-25-0 Propiolic acid 
• 626-55-1 3-Bromopyridine 
• 536-74-3 phenylacetylene 
• 623-12-1 4-chloromethoxybenzene 
• 106-43-4 para-chlorotoluene 
• 106-38-7 para-bromotoluene 
• 75-20-7 calcium carbide 
• 1066-54-2 trimethylsilylacetylene 
• 4186-14-5 1-(2-(trimethylsilyl)ethynyl)toluene 

Downstream Products

• 23798-84-7 trans-1,2-Bis-(4'-chlor-stilben-4-yl)-acetylen 
• 74827-02-4 1-(2-furyl)-1,2-bis(p-tolyl)ethylene 
• 5140-98-7 4,4′-bis(bromomethyl)tolan 
• 345659-43-0 (6E)-6,7-bis(4-methylphenyl)-5-methyl-5-phenyl-5-siladeca-1,6,9-triene 
• 123857-64-7 (C₅(CH₃)5)TaCl₂(CH₃C₆H₄C)2 
• 57551-94-7 bis(4-methylphenyl)acetylene dicobalt hexacarbonyl 
• 15243-33-1 dodecacarbonyl-triangulo-triruthenium 
• 82135-62-4 (H)[CH₃C₆H₄CC(H)C₆H₄CH₃]Rh₂[P(OCH(CH₃)2)3]4 
• 82135-62-4 HRh₂(CH₃C₆H₄C=C(H)C₆H₄CH₃)[P(O-i-Pr)3]4 
• 195209-77-9 Ir(CO)(η(2)-C2(C6H4CH3)2)(η(5)-C9H7) 
• 195209-79-1 Ir2(CO)2(μ-C2(C6H4CH3)2)(η(5)-C9H7)2 
• 195209-81-5 Ir(η(4)-HC4(C6H4CH3)4Ph)(η(5)-C9H7) 
• 1588-49-4 4,4'-dimethylstilbene 

Relevant articles and documents

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Synthesis and Photophysical Study of Heteropolycyclic and Carbazole Motif: Nickel-Catalyzed Chelate-Assisted Cascade C-H Activations/Annulations

Herein, nickel-catalyzed synthesis of polyarylcarbazole through sequential C-H bond activations has been described. Regioselective indole C2/C3 functionalization has been achieved in the presence of indole C7-H, which is quite challenging. In addition, this approach also gives easy access to building a heteropolycyclic motif through C6/C7 C-H functionalization of indoline. This methodology is not limited to aromatic internal alkynes as coupling partners; aliphatic alkynes have also shown good tolerance. Notably, during the optimization the catalytic enhancement with sodium iodide as an additive has been observed. We have also studied the photophysical properties of these highly conjugated molecules.

Palladium-Catalyzed Cascade Dearomative Spirocyclization and C?H Annulation of Aromatic Halides with Alkynes

Described herein is a palladium-catalyzed intermolecular dearomative annulation of aryl halides with alkynes, which provides a rapid approach to a class of structurally unique spiroembedded polycyclic aromatic compounds. The cascade process is accomplished by a sequential alkyne migratory insertion, Heck-type dearomatization, and C-H bond annulation. Further optoelectronic study indicated this fused spirocyclic scaffold could be a potential host material for OLEDs, as exemplified by a fabricated red PhOLED device with a maximum external quantum efficiency of 23.0%.