7383-90-6

Basic information

• Product Name: 3,4'-dimethyl-1,1'-biphenyl
• Synonyms: 3,4'-dimethyl-1,1'-biphenyl;3,4'-Bitolyl
• CAS NO: 7383-90-6
• Molecular Formula: C₁₄H₁₄
• Molecular Weight: 182.26096
• EINECS: 230-958-7
• Mol File: 7383-90-6.mol
• Article Data: 68

Chemical Properties

• Melting Point: 15°C
• Boiling Point: 295.85°C
• Flash Point: 125.8 °C
• Appearance: /
• Density: 0.9940
• Refractive Index: 1.5946
• CAS DataBase Reference: 3,4'-dimethyl-1,1'-biphenyl(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4'-dimethyl-1,1'-biphenyl(7383-90-6)
• EPA Substance Registry System: 3,4'-dimethyl-1,1'-biphenyl(7383-90-6)

Safety Data

• Hazardous Substances Data: 7383-90-6(Hazardous Substances Data)

Usage

General Description

3,4'-dimethyl-1,1'-biphenyl is a chemical compound with the molecular formula C14H14. It is a type of biphenyl, which is an organic compound consisting of two benzene rings linked together. The presence of two methyl groups at the 3 and 4' positions of the biphenyl structure gives this compound its name. 3,4'-dimethyl-1,1'-biphenyl is used in various industrial applications, including as a component in the production of polymers and plastics. It is also used in the synthesis of organic chemicals and as a research tool in the study of chemical reactions and materials science. The chemical is known to be stable under normal conditions and has low solubility in water, making it suitable for certain manufacturing processes. However, it also poses health risks if not handled properly and should be used with caution.

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Downstream Products

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Relevant articles and documents

Preparation of metal-immobilized methacrylate-based monolithic columns for flow-through cross-coupling reactions

With the aim of developing efficient flow-through microreactors for high-throughput organic synthesis, in this work, microreactors were fabricated by chemically immobilizing palladium-, nickel-, iron-, and copper-based catalysts onto ligand-modified poly(glycidyl methacrylate-co-ethylene dimethacrylate) [poly(GMA-co-EDMA)] monoliths, which were prepared inside a silicosteel tubing (10 cm long with an inner diameter of 1.0 mm) and modified with several ligands including 5-amino-1,10-phenanthroline (APHEN), iminodiacetic acid (IDA), and iminodimethyl phosphonic acid (IDP). The performance of the resulting microreactors in Suzuki?Miyaura cross-coupling reactions was evaluated, finding that the poly(GMA-co-EDMA) monolith chemically modified with 5-amino-1,10-phenanthroline as a binding site for the palladium catalyst provided an excellent flow-through performance, enabling highly efficient and rapid reactions with high product yields. Moreover, this monolithic microreactor maintained its good activity and efficiency during prolonged use.

N-Aroylsulfonamide-Photofragmentation (ASAP)-A Versatile Route to Biaryls

The photochemical fragmentation of N-aroylsulfonamides 9 (ASAP) is a powerful method for the preparation of various biaryls. Compounds 9 are easily accessible in two steps from amines by treatment with arenesulfonyl chlorides and aroyl chlorides. Many of these compounds were prepared for the first time. The irradiation takes place in a previously developed continuous-flow reactor using inexpensive UVB or UVC fluorescent lamps. Isocyanates and sulphur dioxide are formed as the only by-products. The ASAP tolerates a variety of functional groups and is even suited for the preparation of phenylnaphthalenes and terphenyls. The ASAP mechanism was elucidated by interaction of photophysical and quantum chemical (DFT) methods and revealed a spirocyclic biradical as key intermediate.

A photocatalytic ensemble HP-T?Au-Fe3O4: Synergistic and balanced operation in Kumada and Heck coupling reactions

A supramolecular catalytic ensemble HP-T?Au-Fe3O4 supported by highly branched assemblies of hexaphenylbenzene (HPB) derivatives has been developed. The as-prepared HP-T?Au-Fe3O4 nanohybrid material serves as an efficient catalytic system to prepare biaryl derivatives through the Kumada cross-coupling reaction using aryl chlorides as one of the coupling partners under mild reaction conditions (visible light irradiation, aqueous media, aerial conditions, short reaction time). Through the cooperative effect of Au NPs and Fe3O4 NPs, dual activation of aryl chlorides for the generation of aryl radical intermediates is achieved. On the other hand, oligomeric assemblies contributed significantly to the enhancement of the reaction rate and yield of the product by facilitating the reductive elimination step. Different mechanistic studies confirm the involvement of Au NPs, Fe3O4 NPs and oligomeric assemblies in the synergistic and balanced operation of HP-T?Au-Fe3O4 nanohybrid materials in the efficient completion of the catalytic cycle of the Kumada coupling reaction. Being magnetic, the catalytic ensemble could be recycled for up to five catalytic cycles. The as-prepared supramolecular photocatalytic ensemble also works efficiently in Heck coupling reactions involving aryl chlorides and aryl iodides as the coupling partner.