19550-97-1

Upstream product

• 73623-91-3 2,4-Diphenyl-phenoxyl-Radikal 
• 761447-77-2 3,3',5,5'-tetraphenyl-2,2'-bis(methoxymethyloxy)biphenyl 
• 21987-62-2 3,3′,5,5′-tetrabromo-[1,1′-biphenyl]-2,2′-diol 
• 98-80-6 phenylboronic acid 
• 1161781-80-1 3,3',5,5'-tetraphenyl-2,2'-dimethoxybiphenyl 
• 1806-29-7 2,2'-dihydroxybiphenyl 
• 121169-13-9 4,4',6,6'-tetrabromo-1,1'-dimethoxymethoxy-2,2'-biphenyl 

Relevant academic research and scientific papers

Counteranion-controlled regioselectivity in palladium-catalyzed allylic amination of dienyl allylic carbonates

A regioselective Pd-catalyzed allylic amination reaction of dienyl allylic carbonates and aromatic amines has been developed by means of phosphoramidite-palladium catalysis. The regioselectivity could be altered by the counterion of the π-allylpalladium intermediate. As a result, either branched Z-dienyl allylic amines or linear conjugated allylic amines were generated in high levels of regioselectivity from the same substrates by tuning the reaction conditions.

Effect of aryl substituents on intramolecular cyclization of 2,2′-biphenoquinones

Effect of aryl substituents on intramolecular cyclizations of 3,3′,5,5′-tetraaryl-2,2′-biphenoquinones (Ar = phenyl (la) and 4-methoxyphenyl (1b)) has been studied. In benzene, 1a gave 2,4,6,8-tetraphenyldibenzofuran-1-ol (10) gradually as a main product,

Biphenol-based phosphoramidite ligands for the enantioselective copper-catalyzed conjugate addition of diethylzinc

Phosphoramidite ligands, based on ortho-substituted biphenols and a chiral amine, induce high enantioselectivities (ee's up to 99%) in the copper-catalyzed conjugate addition of dialkylzinc reagents to a variety of Michael acceptors. Particularly, the best reported ee's were obtained for acyclic nitroolefins.