857591-20-9

Upstream product

• 104-92-7 1-bromo-4-methoxy-benzene 
• 101-81-5 Diphenylmethane 
• 32636-65-0 diphenylmethyl diethyl phosphate 
• 100-66-3 methoxybenzene 
• 591-51-5 phenyllithium 
• 64655-62-5 (2-methoxyphenyl)(diphenyl)methanol 
• 7120-41-4 methyl 5-bromo-2-methoxybenzoate 
• 7647-01-0 hydrogenchloride 
• 94622-89-6 5-bromo-2-methoxy-α,α-diphenylbenzenemethanol 

Downstream Products

• 72824-75-0 ((2-methoxyphenyl)methylene)dibenzene 

Relevant academic research and scientific papers

A Sustainable Heterogeneous Iron Catalyst Fe/SBA-15 towards Direct Arylation of Unactivated C(sp3)?H and C(sp2)?H Bonds with Arenes

Iron grafted over mesoporous silica (8 wt %Fe/SBA-15) is a sustainable, efficient heterogeneous iron catalyst for direct arylation of biphenyl methane C(sp3)?H and benzene C(sp2)?H bonds. The selective extraction deposition (SED) technique was adopted to graft iron easily over the mesoporous support SBA-15 by using LaFeO3 as an iron precursor. The synthesized catalyst has been characterized by EPR spectroscopy, diffuse reflectance UV/Vis spectroscopy, and temperature programmed reduction (TPR) analysis to understand the coordination environment and state of oxidic iron species grafted over the mesoporous SBA-15. TPR results confirm the presence of isolated, clustered, oligomeric oxidic iron species in the catalyst. The adopted SED technique is highly successful for grafting 8 wt % iron into the mesopores of SBA-15 without forming iron oxide particles. Unlike homogeneous iron, the 8 wt %Fe/SBA-15 catalyst does not need support from an electron-withdrawing group and additives to carry out arylation of benzene and could be successfully recycled five times.

Benzylic Phosphates in Friedel-Crafts Reactions with Activated and Unactivated Arenes: Access to Polyarylated Alkanes

Easily reachable electron-poor/rich primary and secondary benzylic phosphates are suitably used as substrates for Friedel-Crafts benzylation reactions with only 1.2 equiv activated/deactivated arenes (no additional solvent) to access structurally and electronically diverse polyarylated alkanes with excellent yields and selectivities at room temperature. Specifically, diversely substituted di/triarylmethanes are generated within 2-30 min using this approach. A wide number of electron-poor polyarylated alkanes are easily accomplished through this route by just tuning the phosphates.