All Photos(2)

763039

Sigma-Aldrich

XantPhos Pd G3

95%

Synonym(s):
[(4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene)-2-(2′-amino-1,1′-biphenyl)]palladium(II) methanesulfonate
Empirical Formula (Hill Notation):
C52H45NO4P2PdS
CAS Number:
Molecular Weight:
948.35
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

95%

feature

generation 3

reaction suitability

core: palladium
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

mp

164-167 °C (decomposition)

functional group

phosphine

SMILES string

CS(=O)(=O)O[Pd]c1ccccc1-c2ccccc2N.CC3(C)c4cccc(P(c5ccccc5)c6ccccc6)c4Oc7c(cccc37)P(c8ccccc8)c9ccccc9

InChI

1S/C39H32OP2.C12H10N.CH4O3S.Pd/c1-39(2)33-25-15-27-35(41(29-17-7-3-8-18-29)30-19-9-4-10-20-30)37(33)40-38-34(39)26-16-28-36(38)42(31-21-11-5-12-22-31)32-23-13-6-14-24-32;13-12-9-5-4-8-11(12)10-6-2-1-3-7-10;1-5(2,3)4;/h3-28H,1-2H3;1-6,8-9H,13H2;1H3,(H,2,3,4);/q;;;+1/p-1

InChI key

AJVXPGQYAKUTGX-UHFFFAOYSA-M

General description

XantPhos Pd G3 is a third generation (G3) Buchwald precatalyst. It is air, moisture and thermally-stable and is highly soluble in a wide range of common organic solvents. It has long life in solutions. XantPhos 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.

Application

XantPhos Pd G3 may be used in the following processes:
  • Negishi cross-coupling reaction during the synthesis of palmerolides.
  • Aminocarbonylation of heteroaryl bromides with carbon monoxide (CO) in the presence of triethylamine.
  • Coupling between polyglycosyl thiols and aglycon halides by C-S bond formation.

Packaging

250 mg in glass bottle
1, 5 g in glass bottle

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

A synthetic approach to palmerolides via Negishi cross coupling. The challenge of the C15-C16 bond formation.
Carrillo J, et al.
Tetrahedron Letters, 55(33), 4623-4627 (2014)
Stereoretentive Palladium-Catalyzed Arylation, Alkenylation, and Alkynylation of 1-Thiosugars and Thiols Using Aminobiphenyl Palladacycle Precatalyst at Room Temperature.
Bruneau A, et al.
Chemistry (Weinheim An Der Bergstrasse, Germany), 21(23), 8375-8379 (2015)
2-Aminobiphenyl Palladacycles: The ?Most Powerful? Precatalysts in C-C and C-Heteroatom Cross-Couplings.
Bruneau A, et al.
ACS Catalysis, 5(2), 1386-1396 (2015)

Articles

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 to air. To best enable scale-up success, the use of standard Schlenk technique is recommended.

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

All contents in the foil bag are weighed, plated, packed, and sealed in a glove box under nitrogen.

G3 and G4 Buchwald Precatalysts

G3 and G4 Buchwald palladium precatalysts are the newest air, moisture, and thermally stable crossing-coupling complexes used in bond formation for their versatility and high reactivity.

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