Tetrakis(2,4-di-tert-butylphenyl) [1,1'-biphenyl]-4,4'-diylbis(phosphonite)

• CAT Number: L045141
• CAS Number: 38613-77-3
• Molecular Formula: C68H92O4P2
• Molecular Weight: 1035.40
• Purity: ≥95%
• IUPAC Name: [4-[4-bis(2,4-ditert-butylphenoxy)phosphanylphenyl]phenyl]-bis(2,4-ditert-butylphenoxy)phosphane
• InChI: InChI=1S/C68H92O4P2/c1-61(2,3)47-29-37-57(53(41-47)65(13,14)15)69-73(70-58-38-30-48(62(4,5)6)42-54(58)66(16,17)18)51-33-25-45(26-34-51)46-27-35-52(36-28-46)74(71-59-39-31-49(63(7,8)9)43-55(59)67(19,20)21)72-60-40-32-50(64(10,11)12)44-56(60)68(22,23)24/h25-44H,1-24H3
• InChIKey: BEIOEBMXPVYLRY-UHFFFAOYSA-N
• SMILES: CC(C)(C)C1=CC(=C(C=C1)OP(C2=CC=C(C=C2)C3=CC=C(C=C3)P(OC4=C(C=C(C=C4)C(C)(C)C)C(C)(C)C)OC5=C(C=C(C=C5)C(C)(C)C)C(C)(C)C)OC6=C(C=C(C=C6)C(C)(C)C)C(C)(C)C)C(C)(C)C

Tetrakis(2,4-di-tert-butylphenyl) [1,1′-biphenyl]-4,4′-diylbis(phosphonite)（Cat No.:L045141）is a bulky organophosphorus compound featuring two phosphonite groups attached to a biphenyl backbone. Each phosphonite group is linked to 2,4-di-tert-butylphenyl substituents, which provide steric bulk and enhance the stability of the compound. This molecule is commonly used as a ligand in transition metal catalysis, particularly in reactions such as cross-coupling and hydrogenation. The bulky, electron-donating tert-butyl groups increase solubility and steric hindrance, which can improve catalyst selectivity and reactivity. It plays a key role in synthetic organic chemistry and materials science.