751-38-2

Basic information

• Product Name: 1,2,3,4-TETRAPHENYLNAPHTHALENE
• Synonyms: 1,2,3,4-TETRAPHENYLNAPHTHALENE;1,2,3,4-Tetraphenylnaphtalene;1,2,3,4-Tetraphenylnaphthalene 97%
• CAS NO: 751-38-2
• Molecular Formula: C₃₄H₂₄
• Molecular Weight: 432.55
• Product Categories: Arenes;Building Blocks;Organic Building Blocks
• Mol File: 751-38-2.mol
• Article Data: 71

Chemical Properties

• Melting Point: 199-201 °C(lit.)
• Boiling Point: 486.1 °C at 760 mmHg
• Flash Point: 250.2 °C
• Appearance: /
• Density: 1.124 g/cm³
• Vapor Pressure: 3.96E-09mmHg at 25°C
• Refractive Index: 1.662
• CAS DataBase Reference: 1,2,3,4-TETRAPHENYLNAPHTHALENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,4-TETRAPHENYLNAPHTHALENE(751-38-2)
• EPA Substance Registry System: 1,2,3,4-TETRAPHENYLNAPHTHALENE(751-38-2)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 751-38-2(Hazardous Substances Data)

Usage

Uses

The triplet excited-state of 1,2,3,4-tetraphenylnaphthalene is a primary intermediate of the photochemical transformation of 7,7′-dimethylgerma-1,4,5,6-tetraphenyl-2,3-benzo-norbornadiene (GNB) in hexane solution.

Purification Methods

Crystallise the naphthalene from MeOH or EtOH. [Fieser & Haddadin Org Synth 46 107 1966, Beilstein 5 IV 2918.]

InChI:InChI=1/C34H24/c1-5-15-25(16-6-1)31-29-23-13-14-24-30(29)32(26-17-7-2-8-18-26)34(28-21-11-4-12-22-28)33(31)27-19-9-3-10-20-27/h1-24H

Upstream product

• 118-92-3 anthranilic acid 
• 479-33-4 2,3,4,5-tetraphenylcyclopenta-2,4-dienone 
• 109-99-9 tetrahydrofuran 
• 501-65-5 diphenyl acetylene 
• 62827-97-8 Bis(trimethylsilyl)thioketene 
• 76054-64-3 7,7-dimethyl-1,4,5,6-tetraphenyl-2,3-benzo-7-germanorbornadiene 
• 76-84-6 triphenylmethyl alcohol 
• 5440-76-6 (4-methylphenyl)diphenylmethanol 
• 427-39-4 (4-fluorophenyl)diphenylmethanol 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 107824-82-8 2,3-benzo-1,4,5,6,7,7-hexaphenyl-7-germanorborna-2,5-diene 
• 16797-75-4 di-tert-butylthioketene 
• 122951-48-8 (C₆H₄)C₄(C₆H₅)4(Ge(C₆H₅)CH₃) 
• 617-86-7 triethylsilane 

Downstream Products

• 313-63-3 dibenzo[fg,ij]naphtho[1,2,3,4-rst]pentaphene 

Relevant articles and documents

SELF-REACTION OF PENTAMETHYLDISILYL RADICALS: IS DIMETHYLSILYLENE A PRODUCT?

The self-reaction of the pentamethyldisilyl radical was investigated, in solution, at 298 deg K.Products due to the disproportionation and combination of these radicals were detected in a ratio /=0.48.However, there was no evidence for silylene formation.These results suggest that silylenes, which are formed during polysilane photolysis, are not produced from the self-reaction of polysilyl radicals but must be photo-extruded from the polysilane itself.

Iodide [(η5-indenyl)IrI2]n: an effective precursor to (indenyl)iridium sandwich complexes

The reactions of [(η5-indenyl)IrI2]η with CpTl or arenes in the presence of AgBF4 afford [(η5-indenyl)IrCp]+ or [(η5-indenyl)Ir(arene)]2+ cations (arene = benzene, mes

Synthesis of tetrasubstituted naphthalenes by palladium-catalyzed reaction of aryl iodides with internal alkynes

The 1:2 coupling of aryl iodides with acetylene-dicarboxylate esters and diphenylacetylene efficiently proceeds in the presence of a palladium catalyst with use of silver carbonate as base to produce the corresponding tetrasubstituted naphthalenes.

Formation of a Naphthalene Framework by Rhodium(III)-Catalyzed Double C-H Functionalization of Arenes with Alkynes: Impact of a Supporting Ligand and an Acid Additive

An efficient protocol has been developed for the synthesis of larger condensed arenes from aromatic hydrocarbons and internal alkynes. This protocol uses readily available [CpRhI2]nas a catalyst and Cu(OAc)2as an oxidant and proceeds smoothly through undirected double C-H activation. The addition of trifluoroacetic acid has a crucial positive impact on the reaction selectivity and the yields of the target products. In contrast to the previously reported catalytic systems, the new conditions allow the use of both dialkyl- and diarylacetylenes with the same high efficiency.

Synthesis of Benzo-Fused Cyclic Compounds via Rhodium-Catalyzed Decarboxylative Coupling of Aromatic Carboxylic Acids with Alkynes

The decarboxylative coupling of diversely substituted benzoic acids with internal alkynes proceeds smoothly in the presence of a [RhCl(cod)] 2/1,2,3,4-tetraphenyl-1,3-cyclopentadiene catalyst system to selectively produce highly substituted nap

Easy Access to Versatile Catalytic Systems for C?H Activation and Reductive Amination Based on Tetrahydrofluorenyl Rhodium(III) Complexes

On the basis of the 1,2,3,4-tetrahydrofluorenyl ligand, a simple approach was developed to new effective rhodium catalysts for the construction of C?C and C?N bonds. The halide compounds [(η5-tetrahydrofluorenyl)RhX2]2 (2