1,4-BIS(DI-TERT-BUTYLPHOSPHINO)BUTANE

1,4-Bis(di-tert-butylphosphino)butane is a diphosphine compound characterized by two sterically demanding tert-butylphosphino groups linked by a four-carbon butylene chain. Its primary significance lies in its use as a ligand in cross-coupling catalysis, where it coordinates to transition metals to facilitate carbon-carbon bond formation.