1040379-06-3

Upstream product

• 1040378-97-9 3,3′,5,5′-tetraiodo-2,2′,6,6′-tetramethoxybiphenyl 
• 5720-05-8 4-methylphenylboronic acid 

Downstream Products

• 1040379-15-4 3,3',5,5'-tetratolylbiphenyl-2,2',6,6'-tetraol 

Relevant academic research and scientific papers

Highly regioselective isomerization - Hydroformylation of internal olefins to linear aldehyde using rh complexes with tetraphosphorus ligands

(Figure Presented) A series of new pyrrole-based tetraphosphorus ligands were synthesized and used for Rh-catalyzed isomerization-hydroformylation of internal olefins. It was found that the substituents at the 3,3′,5, 5′-positions of the biphenyl greatly effected the linear selectivity, and the alkyl-substituted tetraphosphorus ligands gave the best results (for 2-octene, n:i up to 207, for 2-hexene, n:i up to 362).