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662623

Sigma-Aldrich

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

95%

Synonym(s):

Rh2(esp)2

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About This Item

Empirical Formula (Hill Notation):
C32H40O8Rh2
CAS Number:
819050-89-0
Molecular Weight:
758.47
MDL number:
MFCD08457636
UNSPSC Code:
12161600
PubChem Substance ID:
24884595
NACRES:
NA.22

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

General description

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

Application

Rh2(esp)2: An Exceptionally Efficient and Selective Catalyst for C-H Amination
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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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

Rh2(esp)2 Catalyst

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

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