74331-74-1

Basic information

• Product Name: 2-ETHYNYL-1,3-DIMETHYLBENZENE
• Synonyms: 2-ETHYNYL-1,3-DIMETHYL-BENZENE;Benzene, 2-ethynyl-1,3-dimethyl- (9CI)
• CAS NO: 74331-74-1
• Molecular Formula: C₁₀H₁₀
• Molecular Weight: 130.1864
• Mol File: 74331-74-1.mol
• Article Data: 11

Chemical Properties

• Boiling Point: 195.8°C at 760 mmHg
• Flash Point: 60.4°C
• Appearance: /
• Density: 0.93g/cm³
• Vapor Pressure: 0.577mmHg at 25°C
• Refractive Index: 1.528
• CAS DataBase Reference: 2-ETHYNYL-1,3-DIMETHYLBENZENE(CAS DataBase Reference)
• NIST Chemistry Reference: 2-ETHYNYL-1,3-DIMETHYLBENZENE(74331-74-1)
• EPA Substance Registry System: 2-ETHYNYL-1,3-DIMETHYLBENZENE(74331-74-1)

Safety Data

• Hazardous Substances Data: 74331-74-1(Hazardous Substances Data)

Usage

InChI:InChI=1/C10H10/c1-4-10-8(2)6-5-7-9(10)3/h1,5-7H,2-3H3

Upstream product

• 384850-46-8 1-(trimethylsilyl)-2-(2,6-dimethylphenyl)ethyne 
• 90965-06-3 dimethyl 1-(1-diazo-2-oxopropyl)phosphonate 
• 1123-56-4 2,6-dimethylbenzaldehyde 
• 608-28-6 2,6-dimethyliodobenzene 
• 21900-37-8 2,6-dimethylbenzoyl chloride 
• 87-62-7 2,6-dimethylaniline 
• 632-46-2 2,6-dimethylbenzoic acid 
• 2039-90-9 2,6-dimethylstyrene 
• 576-22-7 2-Bromo-m-xylene 
• 190374-00-6 2-(1,2-dibromoethyl)-1,3-dimethylbenzene 
• 77385-72-9 (E)-β-(2,6-dimethylphenyl)vinyl bromide 
• 2142-76-9 2',6'-dimethylacetophenone 
• 13894-21-8 ethynyl p-tolyl sulfone 

Downstream Products

• 74331-78-5 α-(2,6-dimethylphenyl)vinyl bromide 
• 1377186-25-8 C₂₀H₂₀ 
• 1422528-98-0 2-((2,6-dimethylphenyl)ethynyl)benzaldehyde 
• 1380503-39-8 2-(but-1-yn-1-yl)-1,3-dimethylbenzene 
• 1235456-27-5 7-[(2,6-dimethylphenyl)ethynyl]-2-phenyl-1,8a-dihydroazulene-1,1-dicarbonitrile 
• 1242030-72-3 2-(dicyclohexylphosphinoylethynyl)-1,3-dimethylbenzene 
• 74331-77-4 1-(2,6-Dimethylphenyl)vinyl tosylate 
• 503309-90-8 bis-1,5-(2,6-dimethylphenyl)-1,4-pentadiyn-3-ol 
• 503309-98-6 1,5-bis-(2,6-dimethylphenyl)-1,4-pentadiyn-3-one 
• 503309-99-7 2,6-bis(2,6-dimethylphenyl)thiapyran-4-one 
• 905811-27-0 [[3-(2,6-dimethylphenyl)-1-phenyl-2-propynyl]oxy]-trimethylsilane 
• 944551-30-8 C₁₇H₁₆O 

Relevant articles and documents

ORGANIC ELECTROLUMINESCENCE ELEMENT AND MATERIAL

PROBLEM TO BE SOLVED: To provide a phosphorescent metal complex emitting blue light, which shows a low drive voltage, high emission efficiency, high color purity of emission and a long emission life when used for an element, and to provide an organic electroluminescence element containing the above metal complex. SOLUTION: The present invention provides a compound represented by general formula (I): ML1mL2n, and an organic electroluminescence element containing the above compound. SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2020,JPOandINPIT

CO extrusion in homogeneous gold catalysis: Reactivity of gold acyl species generated through water addition to gold vinylidenes

Herein, we describe a new gold-catalyzed decarbonylative indene synthesis. Synergistic σ,π-activation of diyne substrates leads to gold vinylidene intermediates, which upon addition of water are transformed into gold acyl species, a type of organogold compound hitherto only scarcely reported. The latter are shown to undergo extrusion of CO, an elementary step completely unknown for homogeneous gold catalysis. By tuning the electronic and steric properties of the starting diyne systems, this new reactivity could be exploited for the synthesis of indene derivatives in high yields.

Ortho, ortho′-Substituted KITPHOS monophosphines: Highly efficient ligands for palladium-catalyzed C-C and C-N bond formation

ortho, ortho′-Substitution of the phosphinoalkyne-derived aryl ring in KITPHOS (11-dicyclohexylphosphino-12-phenyl-9,10-ethenoanthracene) monophosphines enhances the performance of this class of ligand in palladium-catalyzed Suzuki-Miyaura cross-couplings and BuchwaldHartwig aminations, compared with their unsubstituted and mono-substituted counterparts. An alternative complementary synthesis of KITPHOS monophosphines has been developed and two new members of this family, 2,6-Me2-KITPHOS [11-dicyclohexylphosphino-12-(2,6-dimethylphenyl)-9,10-ethenoanthracene] and 2,6-(MeO)2-KITPHOS [11-dicyclohexylphosphino-12-(2,6-dimethoxyphenyl)-9,10-ethenoanthracene], have been prepared; palladium complexes of both are highly efficient catalysts for C - C and C - N bond formation with a range of electron-rich and electron-poor aromatic chlorides as well as heteroaryl chlorides.