How is (6,6'-Dimethoxy-2,2'-biphenyldiyl)bis{bis[4-methoxy-3,5-bis(2-methyl-2-propanyl)phenyl]phosphine} (CAS: 352655-61-9) typically synthesized?

This compound is synthesized through multistep reactions involving biphenyl derivatives and phosphine compounds. Commonly, it is prepared using Grignard reagents or organolithium compounds as the reactants. The synthesis is selective and yields are generally high, though specific conditions and catalysts may vary depending on the scale of the reaction.