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745979

tBuBrettPhos Pd G3

96%, solid

Synonym(s):

tert-BuBrettPhos-Pd-G3, [(2-Di-tert-butylphosphino-3,6-dimethoxy-2′,4′,6′-triisopropyl-1,1′-biphenyl)-2-(2′-amino-1,1′-biphenyl)]palladium(II) methanesulfonate

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About This Item

Empirical Formula (Hill Notation):
C44H62NO5PPdS
CAS Number:
1536473-72-9
Molecular Weight:
854.43
UNSPSC Code:
12161600
PubChem Substance ID:
329765730
NACRES:
NA.22
MDL number:
MFCD25976528
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Product Name

tBuBrettPhos Pd G3, 96%

Quality Level

100

product line

Buchwald precatalyst Generation 3

assay

96%

form

solid

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

119-131 °C

functional group

phosphine

SMILES string

COC1=CC=C(C(P(C(C)(C)C)C(C)(C)C)=C1C2=C(C=C(C=C2C(C)C)C(C)C)C(C)C)OC.NC3=C(C=CC=C3)C4=C(C=CC=C4)[Pd]OS(C)(=O)=O

InChI

1S/C31H49O2P.C12H10N.CH4O3S.Pd/c1-19(2)22-17-23(20(3)4)27(24(18-22)21(5)6)28-25(32-13)15-16-26(33-14)29(28)34(30(7,8)9)31(10,11)12;13-12-9-5-4-8-11(12)10-6-2-1-3-7-10;1-5(2,3)4;/h15-21H,1-14H3;1-6,8-9H,13H2;1H3,(H,2,3,4);/q;;;+1/p-1

InChI key

GAQPAUHHECNHNS-UHFFFAOYSA-M

General description

tBuBrettPhos Pd G3 is a third generation (G3) Buchwald precatalyst that can be used in cross-coupling reactions for the formation of C-C, C–N, C–O, C–F, C–CF3, and C–S bonds. It is air-, moisture-, and thermally-stable and is highly soluble in a wide range of common organic solvents. 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

tBuBrettPhos Pd G3 has been used as a precatalyst for the N-arylation of amino acid esters with aryl triflates under mild reaction conditions and minimal racemization of the amino acid ester. It may also be used to catalyze the conversion of aryl halides to phenols in the presence of benzaldoxime as a hydroxide surrogate.

For small scale and high throughput uses, product is also available as ChemBeads (928313)

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
SHBN5085
SHBM0165
SHBK8065
SHBL1146
SHBJ7055

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Hailey A Young et al.
The Journal of organic chemistry, 85(3), 1748-1755 (2019-12-04)
Palladium-catalyzed N-arylations of amino acid tert-butyl esters using 4-bromo-N,N-dimethylaniline as a coupling partner are reported. The resulting N-aryl amino acid esters are suitable building blocks for the synthesis of electron-rich N-aryl peptides, which undergo oxidative couplings to aminooxy groups to
Synthesis of Complex Phenols Enabled by a Rationally Designed Hydroxide Surrogate.
Fier PS & Maloney KM
Angewandte Chemie (International Edition in English), 56(16), 4478-4482 (2017)
Sandra M King et al.
Organic letters, 18(16), 4128-4131 (2016-08-09)
A general method for the N-arylation of amino acid esters with aryl triflates is described. Both α- and β-amino acid esters, including methyl, tert-butyl, and benzyl esters, are viable substrates. Reaction optimization was carried out by design of experiment (DOE)

Global Trade Item Number

SKUGTIN
745979-100MG04061832970301
745979-2G04061832970318
745979-1G04061832890227
745979-500MG04061832970325
745979-5G04061832970332