Prominent Ligand Types in Modern Cross-Coupling Reactions - New Trends in Cross-Coupling: Theory and Applications - page 29

Ph 2 P PPh 2

Ph 2 P PPh 2

Ph 2 P PPh 2

PPh 2 PPh 2

Ph 2 P PPh 2

dppm
73 °

dppe
86 °

dppp
91 °

dppb
94 °

BISBI
122 °

PPh 2 P( t -Bu) 2

PPh 2
PPh 2

Fe Fe

O

O

PPh 2 P( t -Bu) 2

PPh 2 PPh 2

PPh 2 PPh 2

dtbpf a
104 °

BINAP
93 °

dppf
99 °

DPEphos
104 °

Xantphos
108 °

Figure 2.6 Common chelating ligand bite angles. 27a Abbreviations: dppm ¼ 1,1-bis(diphenylphosphino)methane; dppe ¼ 1,2-bis(diphenyl-
phosphino)ethane; dppp ¼ 1,3-bis(diphenylphosphino)propane; dppb ¼ 1,4-bis(diphenylphosphino)butane; BISBI ¼ 2,2 0 -
bis[(diphenylphosphino)methyl]-1,1 0 -biphenyl; BINAP ¼ 2,2 0 -bis(diphenylphosphino)-1,1 0 -binaphthalene; dppf ¼ 1,1 0 -bis(diphenyl-
phosphino)ferrocene; dtbpf ¼ 1,1 0 -bis(di-tert-butylphosphino)ferrocene; DPEPhos ¼ (oxydi-2,1-phenylene)bis(diphenylphosphine);
Xantphos ¼ 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene.
a Data for dtbpf taken from Refs 28 and 29.