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Merck

753009

SPhos Pd G2

solid

Synonym(s):

2nd Generation SPhos Precatalyst, Chloro(2-dicyclohexylphosphino-2′,6′-dimethoxy-1,1′-biphenyl)[2-(2′-amino-1,1′-biphenyl)]palladium(II), SPhos-Pd-G2

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About This Item

Empirical Formula (Hill Notation):
C38H45ClNO2PPd
CAS Number:
Molecular Weight:
720.62
UNSPSC Code:
12161600
PubChem Substance ID:
NACRES:
NA.22
MDL number:
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Product Name

SPhos Pd G2,

Quality Segment

product line

Buchwald precatalyst Generation 2

form

solid

feature

generation 2

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

218 °C (dec.)

functional group

phosphine

SMILES string

COC1=CC=CC(OC)=C1C2=C(P(C3CCCCC3)C4CCCCC4)C=CC=C2.NC5=C(C6=C([Pd]Cl)C=CC=C6)C=CC=C5

InChI

1S/C26H35O2P.C12H10N.ClH.Pd/c1-27-23-17-11-18-24(28-2)26(23)22-16-9-10-19-25(22)29(20-12-5-3-6-13-20)21-14-7-4-8-15-21;13-12-9-5-4-8-11(12)10-6-2-1-3-7-10;;/h9-11,16-21H,3-8,12-15H2,1-2H3;1-6,8-9H,13H2;1H;/q;;;+1/p-1

InChI key

NOMWEFBAPVZIIP-UHFFFAOYSA-M

General description

SPhos Pd G2 is a second generation (G2) precatalyst in which phenethylamine based backbone of the (G1) complex is substituted with a biphenyl-based ligand. This improvement on the previous generation allows creating the active palladium species at room temperature with weak phosphate or carbonate bases. The catalyst proves remarkably adept at achieving a variety of Suzuki-Miyaura couplings among other cross-coupling reactions.

Application

Application in Suzuki-Miyaura coupling:
  • Self-arylation of 1-alkyl-3-bromo-2-phenyl-2,1-borazaronaphthalenes to form 2,1-borazaronaphthols.
  • Suzuki–Miyaura coupling of [Ru(bpy)2]+ with 4-carboxyphenylboronic acid.
  • Suzuki–Miyaura coupling of β-borylated porphyrins with 2-iodoaniline.



Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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Articles

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

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.

Multiple tools have been created to ensure your success with kit set up. Start with the more detailed guide to ensure you are comfortable with all of the steps before using the quick guides on the excel worksheet. Remember that while the technique is new, it is still organic chemistry and so the steps will seem easy once you try just one kit. It is just a new way of approaching something you are already very good at.

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Gao K, et al.
Angewandte Chemie (International Edition in English), 55(42), 13038-13042 (2016)
Accessing 2, 1-Borazaronaphthols: Self-Arylation of 1-Alkyl-2-aryl-3-bromo-2, 1-borazaronaphthalenes
Molander, Gary A and Wisniewski, Steven R
The Journal of Organic Chemistry, 79(17), 8339-8347 (2014)