804967 Sigma-Aldrich



  • CAS Number 2151915-22-7

  • Empirical Formula (Hill Notation) C57H45NO3P2PdS

  • Molecular Weight 992.40

  •  PubChem Substance ID 329768912



Related Categories Buchwald Ligands, Catalysis and Inorganic Chemistry, Chemical Synthesis, Homogeneous Pd Catalysts, Palladium Catalysts,
Quality Level   100
assay   95%
mp   175-180 °C
functional group   phosphine
reaction suitability   reaction type: Buchwald-Hartwig Cross Coupling Reaction
  reaction type: Heck Reaction
  reaction type: Hiyama Coupling
  reaction type: Negishi Coupling
  reaction type: Sonogashira Coupling
  reaction type: Stille Coupling
  reaction type: Suzuki-Miyaura Coupling
  reagent type: catalyst
reaction type: Cross Couplings
SMILES string   CS(O[Pd-2]1([P+](C2=CC=CC=C2)(C3=CC=CC=C3)C4=C(C5=C6C(C=CC=C6)=CC=C5P(C7=CC=CC=C7)C8=CC=CC=C8)C9=CC=CC=C9C=C4)C%10=C(C%11=C([NH2+]1)C=CC=C%11)C=CC=C%10)(=O)=O
InChI   1S/C44H32P2.C12H10N.CH4O3S.Pd/c1-5-19-35(20-6-1)45(36-21-7-2-8-22-36)41-31-29-33-17-13-15-27-39(33)43(41)44-40-28-16-14-18-34(40)30-32-42(44)46(37-23-9-3-10-24-37)38-25-11-4-12-26-38;13-12-9-5-4-8-11(12)10-6-2-1-3-7-10;1-5(2,3)4;/h1-32H;1-6,8-9H,13H2;1H3,(H,2,3,4);/q;;;+1/p-1


General description

rac-BINAP-Pd-G3 is a third generation (G3) Buchwald precatalyst. t is air, moisture and thermally-stable and is highly soluble in a wide range of common organic solvents. It has long life in solutions. rac-BINAP-Pd-G3 is an excellent reagent for palladium catalyzed cross-coupling reactions. Some of its unique features include lower catalyst loadings, shorter reaction time, efficient formation of the active catalytic species and accurate control of ligand: palladium ratio. It


Pd precatalyst for cross-coupling


1 g in glass bottle

250 mg in glass bottle

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles


G3 and G4 Buchwald Precatalysts

Visit Stephen Buchwald’s Professor Product Portal for more information on palladium precatalysts and products offered by the Buchwald Laboratory.
Keywords: Aminations, Arylations, Catalysis, Coupling reactions, Cross couplings, Deprotonations, Hydroxylations, Ligands, Pharmaceutical, Solvents, Suzuki-Miyaura coupling

KitAlysis™ C-N (Buchwald-Hartwig) High-Throughput Screening Kit

The screening sets come pre-loaded with 1 µmol of catalyst in each vial according to the following design.
Keywords: Cross couplings, High performance liquid chromatography, Ligands, Solvents

Scale-Up Guide: Buchwald-Hartwig Amination Reaction

All of the preformed catalysts used in the kit are air and moisture stable complexes in their commercially available form. Once activated by base under the reaction conditions they become sensitive t...
Keywords: Coupling reactions, Cross couplings, Solvents

Stephen Buchwald Group – Professor Product Portal

From our library of Articles, Sigma-Aldrich presents Stephen Buchwald Group – Professor Product Portal
Keywords: Aminations, Asymmetric catalysis, Asymmetric synthesis, Catalysis, Coupling reactions, Cross couplings, Fluorinations, Ligands, Solvents, transformation

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KitAlysis™ High-Throughput Screening Kits: A Visual Introductory Guide [VIDEO]

This KitAlysis™ High-Throughput Screening Kits video animation clearly illustrates the step by step process that enables any chemist to quickly and efficiently screen 24 unique cross-coupling reactio...
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