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Sigma-Aldrich

Bis[rhodium(α,α,α′,α′-tetramethyl-1,3-benzenedipropionic acid)]

95%

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Synonym(s):
Rh2(esp)2
Empirical Formula (Hill Notation):
C32H40O8Rh2
CAS Number:
Molecular Weight:
758.47
MDL number:
PubChem Substance ID:

assay

95%

form

solid

reaction suitability

core: rhodium
reagent type: catalyst
reaction type: C-H Activation

mp

>300 °C

SMILES string

[Rh][Rh].CC(C)(Cc1cccc(CC(C)(C)C(O)=O)c1)C(O)=O.CC(C)(Cc2cccc(CC(C)(C)C(O)=O)c2)C(O)=O

InChI

1S/2C16H22O4.2Rh/c2*1-15(2,13(17)18)9-11-6-5-7-12(8-11)10-16(3,4)14(19)20;;/h2*5-8H,9-10H2,1-4H3,(H,17,18)(H,19,20);;

InChI key

OBMUTUNJWNQIAJ-UHFFFAOYSA-N

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vibrant-m

125911

α,α′-Dibromo-m-xylene

vibrant-m

123889

α,α′-Dichloro-o-xylene

assay

95%

assay

97%

assay

97%

assay

98%

form

solid

form

-

form

solid

form

solid

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

mp

>300 °C

mp

209-213 °C (lit.)

mp

74-77 °C (lit.)

mp

51-55 °C (lit.)

General description

Bis[rhodium(α,α,α′,α′-tetramethyl-1,3-benzenedipropionicacid)] has been identified as efficient C-H activation catalyst.

Application

Bis[rhodium(α,α,α′,α′-tetramethyl-1,3-benzenedipropionicacid)] is used as a catalyst for oxidative C−H amination of urea and guanidinederived substrates to yield corresponding heterocyclic products.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Kristin Williams Fiori et al.
Journal of the American Chemical Society, 129(3), 562-568 (2007-01-18)
Reaction methodology for intermolecular C-H amination of benzylic and 3 degrees C-H bonds is described. This process uses the starting alkane as the limiting reagent, gives optically pure tetrasubstituted amines through stereospecific insertion into enantiomeric 3 degrees centers, displays high

Articles

New! Rh2(esp)2, and exceptionally efficient and selective catalyst for C-H amination.

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