3901-32-4

Upstream product

• 3478-90-8 4,4'-diphenylbenzophenone 
• 613-31-0 9,10-dihydroanthracene 
• 25054-53-9 3,4-(methylenedioxy)benzoyl chloride 
• 92-52-4 biphenyl 
• 38870-89-2 Methoxyacetyl chloride 
• 4596-95-6 bis(biphenyl-4-yl)methanol 
• 14002-51-8 4-biphenyl-carboxylic acid chloride 
• 92-92-2 biphenyl-4-carboxylic acid 
• 92-66-0 4-bromo-1,1'-biphenyl 
• 40154-51-6 N′-([1,1′-biphenyl]-4-ylmethylene)-4-methylbenzenesulfonohydrazide 
• 3218-36-8 4-Phenylbenzaldehyde 
• 75-09-2 dichloromethane 
• 1591-31-7 4-iodo-biphenyl 
• 3246-80-8 9-phenyl-9H-xanthene 

Downstream Products

• 343767-89-5 4,4''-Methylenbis-(biphenyl)-4'-carbaldehyd 
• 343794-95-6 Bis-<4'-(brommethyl)-4-biphenyl>-methan 
• 4596-95-6 bis(biphenyl-4-yl)methanol 
• 613-31-0 9,10-dihydroanthracene 
• 3246-80-8 9-phenyl-9H-xanthene 
• 81111-31-1 C₂₅H₁₈⁽²⁾H₂ 
• 3478-90-8 4,4'-diphenylbenzophenone 
• 14704-23-5 m-Biphenylylbis(p-biphenylyl)methan 
• 14704-25-7 2-Chlor-1-m-biphenylyl-1,1-bis(p-biphenylyl)ethan 
• 111759-28-5 4,4'-methylenebis(biphenyl-4-carbaldehyde) 
• 14704-22-4 1,1,2,2-tetrakis-biphenyl-4-yl-ethane 

Relevant academic research and scientific papers

Acidity of dibasic carbon acids. Part 5.1-4 the second acidity constant of 9,10-dihydrodibenz[a,h]anthracene in tetrahydrofuran - Geometry, charge distribution of dianion, structure of dimetallic salts

The second equilibrium ion pair acidity constant (pK2) of 9,10-dihydrodibenz[a,h]anthracene (DBDHA, 1H2) with counter ions sodium (pK2 28.5) and potassium (pK2 30.4) has been determined in tetrahydrofuran (THF)

Dual Nickel- And Photoredox-Catalyzed Reductive Cross-Coupling of Aryl Halides with Dichloromethane via a Radical Process

The first catalytic strategy to harness a new chloromethane radical from dichloromethane under dual Ni/photoredox catalytic conditions has been developed. Compared with traditional two-electron reductive process associated with metallic reductants, this method via a single-electron approach can proceed under exceptionally mild conditions (visible light, ambient temperature, no strong base) and exhibits complementary reactivity patterns. It affords a broad scope of many functional groups, including alkenyl, which suffers cyclopropanation in previous routes. The diarylmethane-d2 compounds can be readily available with this transformation.

Synthesis of Di- and Triarylmethanes through Palladium-Catalyzed Reductive Coupling of N -Tosylhydrazones and Aryl Bromides

A palladium-catalyzed reductive coupling between N-tosylhydrazones and aryl bromides has been developed. The reaction provides an efficient method for the synthesis of diarylmethanes and triarylmethanes via the formation of C(sp2)-C(sp3) single bonds. This new methodology for the synthesis of diarylmethanes and triarylmethanes is featured by the ready availability of the starting materials, mild reaction conditions, and the tolerance of wide range of functional groups. The reaction follows a pathway including palladium carbene formation, migratory insertion, and reduction of the alkylpalladium(II) intermediate.

Catalytic asymmetric epoxidation

The present invention relates to the synthesis of chiral epoxides via a catalytic asymmetric oxidation of olefins. Additionally, the methodology provides a method of asymmetrically oxidizing sulfides and phosphines. This asymmetric oxidation employs a catalyst system composed of a metal and a chiral bishydroxamic acid ligand, which, in the presence of a stoichiometric oxidation reagent, serves to asymmetrically oxidize a variety of substrates.

CRYPTATE ACIDITY SCALES. V. EQUILIBRIUM ACIDITY OF INDICATOR CH-ACIDS IN TETRAHYDROFURAN

A scale of equilibrium cryptate acidity in tetrahydrofuran is constructed.Its distinguishing feature is the constancy of the contribution from ionic association.A method is proposed for determination of the constants for the association of the ions into ion pairs in dimethyl sulfoxide.

A SIMPLE AND INEXPENSIVE PROCEDURE FOR CHLOROMETHYLATION OF CERTAIN AROMATIC COMPOUNDS

Reaction of a range of aromatic compounds with methoxyacetyl chloride and aluminium chloride in either nitromethane or carbon disulphide results in chloromethylation in good to excellent yield.

Friedel-Crafts Aroylation of Benzene and Biphenyl in Methylene Chloride

Reactions of acid chlorides of o-, m- and p-toluic acids, p-methoxy- and 3,4-methylenedioxybenzoic acids with biphenyl in the presence of anhydrous AlCl3 in methylene chloride have been studied.Of these, only the reactions of o-, m- and p-toluoly chlorides with biphenyl indicates inter- and intramolecular methylene insertions in the reaction products.It is observed that the 2-, 3- and 4-methylbenzophenones, formed as intermediates, participate in the methylene insertion reactions.In a few cases, besides methylene insertion, methyl insertion has also occurred.Unlike these reactions, the reaction of o-toluoyl chloride with benzene in presence of anhydrous AlCl3 in methylene chloride gives 2-methyl-3-(p-benzylphenyl)benzophenone.The structural assignment of these products are made on the basis of their PMR and mass spectra.