5-(di-tert-Butylphosphino)-1',3',5'-triphenyl-1'H-1,4'-bipyrazole

• CAT Number: L043326
• CAS Number: 894086-00-1
• Molecular Formula: C32H35N4P
• Molecular Weight: 506.60
• Purity: ≥95%
• IUPAC Name: ditert-butyl-[2-(1,3,5-triphenylpyrazol-4-yl)pyrazol-3-yl]phosphane
• InChI: InChI=1S/C32H35N4P/c1-31(2,3)37(32(4,5)6)27-22-23-33-36(27)30-28(24-16-10-7-11-17-24)34-35(26-20-14-9-15-21-26)29(30)25-18-12-8-13-19-25/h7-23H,1-6H3
• InChIKey: PTXJGGGNGMPMBG-UHFFFAOYSA-N
• SMILES: CC(C)(C)P(C1=CC=NN1C2=C(N(N=C2C3=CC=CC=C3)C4=CC=CC=C4)C5=CC=CC=C5)C(C)(C)C

5-(Di-tert-butylphosphino)-1′,3′,5′-triphenyl-1’H-1,4′-bipyrazole（Cat N0.:L043326）is a sterically hindered, multifunctional ligand featuring a phosphine group and a bipyrazole backbone substituted with three phenyl rings. Its molecular architecture combines the strong σ-donating properties of the di-tert-butylphosphino moiety with the rigid, planar structure of the bipyrazole scaffold, making it an effective ligand in coordination and organometallic chemistry. Commonly used in catalysis, particularly in cross-coupling and C–H activation reactions, this compound offers both electronic tunability and steric bulk, enhancing catalyst stability and selectivity in complex synthetic transformations.