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주요 문서

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756482

Sigma-Aldrich

P(t-Bu)3 Pd G2

동의어(들):

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

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모든 사진(6)

About This Item

실험식(Hill 표기법):
C24H37ClNPPd
CAS Number:
1375325-71-5
Molecular Weight:
512.40
MDL number:
MFCD21608496
UNSPSC 코드:
12161600
PubChem Substance ID:
329766544
NACRES:
NA.22

형태

solid

Quality Level

100

특징

generation 2

반응 적합성

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

167-170 °C (decomposition)

작용기

phosphine

SMILES string

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

InChI key

ZVSLIOFJVMRWHJ-UHFFFAOYSA-M

일반 설명

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).

애플리케이션

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

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시험 성적서(COA)

Lot/Batch Number
0000347359
0000275545
SHBP2470
SHBM5348
SHBL4565

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(tBu)2PPh Pd G4 ≥95%

Sigma-Aldrich

900699

(tBu)2PPh Pd G4

cataCXium® A Pd G3 95%

Sigma-Aldrich

761435

cataCXium® A Pd G3

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

문서

2nd Generation Buchwald Precatalysts

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Scale-Up Guide: Buchwald-Hartwig Amination

Preformed catalysts in the kit are stable but become air-sensitive when activated; Schlenk technique aids scale-up.

Scale-Up Guide: Buchwald-Hartwig Amination

Preformed catalysts in the kit are stable but become air-sensitive when activated; Schlenk technique aids scale-up.

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.

관련 콘텐츠

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.

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