51501-79-2

Upstream product

• 126971-87-7 4-iodo-4’-methoxy-1,1’-biphenyl 
• 613-37-6 4-methoxylbiphenyl 
• 92-86-4 4-(4-bromophenyl)bromobenzene 
• 5720-07-0 4-methoxyphenylboronic acid 
• 29558-78-9 4-hydroxy-4'-iodobiphenyl 
• 34176-08-4 sodium 4-bromobenzenesulfinate 
• 1679-18-1 4-Chlorophenylboronic acid 
• 13331-27-6 m-nitrobenzene boronic acid 

Downstream Products

• 10508-41-5 4,4'''-dihydroxy-1,1':4',1'':4'',1'''-quaterphenyl 
• 787-70-2 4,4'-diphenic acid 
• 126842-12-4 4,4'''-diacetoxy-p-quaterphenyl 

Relevant academic research and scientific papers

An Active Palladium Colloidal Catalyst for the Selective Oxidative Heterocoupling of (Hetero)Aryl Boronic Acids

A highly selective oxidative heterocoupling protocol for (hetero)aryl boronic acids with an active palladium colloidal catalyst was developed. The judicious choice of electronically different aryl boronic acids made possible such couplings under mild conditions, with air as oxidant, while embracing a wide substrate scope. This successful approach further allowed the development of a unique one-pot sequential oxidative heterocoupling/Suzuki–Miyaura cross-coupling tandem process for accessing substituted terphenyls.

Catalytic desulfitative homocoupling of sodium arylsulfinates in water using PdCl2 as the recyclable catalyst and O2 as the terminal oxidant

A green and convenient approach to symmetrical biaryls has been developed. The catalytic desulfitative homocoupling of various inexpensive and readily available sodium arylsulfinates in environment-friendly solvent, water, and under clean oxidant, molecular O2, afforded symmetrical biaryls in good yields. What's more, water can hold the noble catalyst PdCl2 for recycling several times easily, and facilitate separating insoluble organic product.

Synthesis of symmetrically and unsymmetrically para-functionalized p-quaterphenylenes

Oligo-p-phenylenes have proven to be versatile building blocks for the generation of self-assembled nanoaggregates with interesting optical properties via vapor deposition on solid supports. Preliminary studies have shown that both the properties and the morphologies of these aggregates can be influenced by the introduction of functional groups. To this end, we have developed general approaches to the synthesis of symmetrically and unsymmetrically 1,4?-substituted p-quaterphenylenes through the application of a reliable Suzuki cross-coupling strategy. Georg Thieme Verlag Stuttgart.