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756482

Sigma-Aldrich

P(t-Bu)3 Pd G2

Synonyme(s) :

Chloro[(tri-tert-butylphosphine)-2-(2-aminobiphenyl)] palladium(II)

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About This Item

Formule empirique (notation de Hill):
C24H37ClNPPd
Numéro CAS:
1375325-71-5
Poids moléculaire :
512.40
Numéro MDL:
MFCD21608496
Code UNSPSC :
12161600
ID de substance PubChem :
329766544
Nomenclature NACRES :
NA.22

Forme

solid

Niveau de qualité

100

Caractéristiques

generation 2

Pertinence de la réaction

core: palladium
reagent type: catalyst
reaction type: Cross Couplings

Capacité de réaction

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

Pf

167-170 °C (decomposition)

Groupe fonctionnel

phosphine

Chaîne SMILES 

NC1=C(C2=CC=CC=C2[Pd]Cl)C=CC=C1.CC(C)(C)P(C(C)(C)C)C(C)(C)C

InChI

1S/C12H10N.C12H27P.ClH.Pd/c13-12-9-5-4-8-11(12)10-6-2-1-3-7-10;1-10(2,3)13(11(4,5)6)12(7,8)9;;/h1-6,8-9H,13H2;1-9H3;1H;/q;;;+1/p-1

Clé InChI

ZVSLIOFJVMRWHJ-UHFFFAOYSA-M

Description générale

P(t-Bu)3 Pd G2 (Chloro[(tri-tert-butylphosphine)-2-(2-aminobiphenyl)] palladium(II)) is a second generation (G2) precatalyst containing a biphenyl-based ligand. Product participates in various palladium catalyzed cross-coupling reactions, C-C, C-N and C-O bond formation reactions, and Suzuki-Miyaura coupling reactions. It generates active Pd catalyst at room temperature in the presence of weak phosphate or carbonate bases. It has been proposed as an active catalyst for use in Stille reactions of aryl halides (bromides and chlorides).

Application

P(t-Bu)3 Pd G2 (Chloro[(tri-tert-butylphosphine)-2-(2-aminobiphenyl)] palladium(II), Pd/P(t-Bu)3) may be used as catalyst in the following studies:
  • Synthesis of sterically hindered biaryls (tetra-ortho-substituted), via cross-coupling reactions of aryl chlorides.
  • Stille cross-couplings reactions of aryl chloride.
  • Synthesis of chloropeptin I, via Stille cross-coupling reaction.
  • Heck reaction.
  • Negishi cross-coupling reactions.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Consulter la Bibliothèque de documents

Adam F Littke et al.
Journal of the American Chemical Society, 124(22), 6343-6348 (2002-05-30)
Pd/P(t-Bu)(3) serves as an unusually reactive catalyst for Stille reactions of aryl chlorides and bromides, providing solutions to a number of long-standing challenges. An unprecedented array of aryl chlorides can be cross-coupled with a range of organotin reagents, including SnBu(4).
Gregory C Fu
Accounts of chemical research, 41(11), 1555-1564 (2008-10-25)
Metal-catalyzed coupling reactions of aryl electrophiles with organometallics and with olefins serve as unusually effective tools for forming new carbon-carbon bonds. By 1998, researchers had developed catalysts that achieved reactions of aryl iodides, bromides, and triflates. Nevertheless, many noteworthy challenges

Articles

2nd Generation Buchwald Precatalysts

Buchwald precatalysts and ligands are bulky electron-rich dialkylbiaryl phospine-based catalysts and structurally related ligands that improve reactivity in Pd-catalyzed cross - coupling reactions

2nd Generation Buchwald Precatalysts

Buchwald precatalysts and ligands are bulky electron-rich dialkylbiaryl phospine-based catalysts and structurally related ligands that improve reactivity in Pd-catalyzed cross - coupling reactions

2nd Generation Buchwald Precatalysts

Buchwald precatalysts and ligands are bulky electron-rich dialkylbiaryl phospine-based catalysts and structurally related ligands that improve reactivity in Pd-catalyzed cross - coupling reactions

2nd Generation Buchwald Precatalysts

Buchwald precatalysts and ligands are bulky electron-rich dialkylbiaryl phospine-based catalysts and structurally related ligands that improve reactivity in Pd-catalyzed cross - coupling reactions

Afficher tout

Contenu apparenté

Buchwald Group – Professor Product Portal

The Buchwald group has developed a series of highly active and versatile palladium precatalysts and biarylphosphine ligands used in cross-coupling reactions for the formation of C-C, C–N, C–O, C–F, C–CF3, and C–S bonds. The ligands are electron-rich, and highly tunable to provide catalyst systems with a diverse scope, high stability and reactivity. Furthermore, the new series of precatalysts are air-, moisture and thermally-stable and display good solubility in common organic solvents. The use of precatalysts ensures the efficient generation of the active catalytic species and allows one to accurately adjust the ligand:palladium ratio. The ligands, precatalysts and methodology developed in the Buchwald group are user friendly and have rendered previously difficult cross couplings reactions, much easier to achieve.

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

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