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683183

Sigma-Aldrich

CARAC

Umicore, 98%

Synonym(s):

Dicarbonyl-acetylacetonato-rhodium(I), (Acetylacetonato)dicarbonylrhodium(I), Dicarbonylrhodium(I) 2,4-pentanedionate, Rh(CO)2acac, Rhodium(I) dicarbonyl acetylacetonate

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About This Item

Linear Formula:
Rh(CO)2(C5H7O2)
CAS Number:
14874-82-9
Molecular Weight:
258.03
EC Number:
238-947-9
MDL number:
MFCD00009884
UNSPSC Code:
12161600
PubChem Substance ID:
329760803
NACRES:
NA.22

Quality Level

100

assay

98%

form

solid

reaction suitability

core: rhodium
reagent type: catalyst

mp

154-156 °C (lit.)

SMILES string

[C-]#[O+].[C-]#[O+].CC(=O)\C=C(\C)O[Rh]

InChI

1S/C5H8O2.2CO.Rh/c1-4(6)3-5(2)7;2*1-2;/h3,6H,1-2H3;;;/q;;;+1/p-1/b4-3-;;;

InChI key

BZCAWKOPWNIDOC-FGSKAQBVSA-M

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Application

Umicore Precatalysts for Asymmetric and Cross-Coupling Catalysis

Catalyst for various carbonylation reactions, silylcarbocyclizations,conjugate additions to enones, carbamoylstannation,and reduction of aromatic nitro compounds

Legal Information

Product of Umicore

Additional information available at www.pmc.umicore.com

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Danger

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Flam. Sol. 1 - Skin Sens. 1

supp_hazards

EUH044

Storage Class

4.1B - Flammable solid hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ7686
MKCP0921
MKCN3580
MKCD2961
MKBW5449V

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Breit, B.; Seiche, W.,
Synthesis, 1-1 (2001)
Ojima, I.; Lee, S.-Y.
Journal of the American Chemical Society, 122, 2385-2385 (2000)
D Bonafoux et al.
Organic letters, 3(9), 1303-1305 (2001-05-12)
[reaction in text] Desymmetrization of dimethylsilyloxyalkadiynes (1) by Rh-catalyzed intramolecular silylformylation affords 5-exo-(formylmethylene)oxasilacyclopentanes 2 in high yields. Novel sequential double silylformylation of 1a also provides desymmetrization, giving 3-(3-silyl-2-formylprop-2-enyl)-5-exo-(formylmethylene)oxasilacyclopentanes 4 in excellent yields. Reduction of 2a and 4 with NaBH(4) gives
K A Merchant et al.
Physical review letters, 86(17), 3899-3902 (2001-05-01)
2D spectrally resolved ultrafast (<200 fs) IR vibrational echo experiments were performed on Rh(CO)(2)acac [(acetylacetonato)dicarbonylrhodium (I)]. The 2D spectra display features that reflect the 0-1 and 1-2 transitions and the combination band transition of the symmetric (S) and antisymmetric (A)
Andrei V Pakoulev et al.
The journal of physical chemistry. A, 112(28), 6320-6329 (2008-06-25)
Triply vibrationally enhanced four-wave mixing spectroscopy is employed to observe vibrational coherence transfer between the asymmetric and symmetric CO-stretching modes of rhodium(I) dicarbonyl acetylacetonate (RDC). Coherence transfer is a nonradiative transition of a coherent superposition of quantum states to a

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