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683183

Sigma-Aldrich

CARAC

99%, Umicore, solid

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

Key Documents

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Product Name

CARAC, Umicore, 98%

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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1 of 4

This Item
701211225665683086
CARAC Umicore, 98%

Sigma-Aldrich

683183

CARAC

Acetylacetonatobis(ethylene)rhodium(I) 95%

Sigma-Aldrich

701211

Acetylacetonatobis(ethylene)rhodium(I)

Tris(triphenylphosphine)rhodium(I) carbonyl hydride 97%

Sigma-Aldrich

225665

Tris(triphenylphosphine)rhodium(I) carbonyl hydride

[Ir(cod)(acac)] Umicore

Sigma-Aldrich

683086

[Ir(cod)(acac)]

assay

98%

assay

95%

assay

97%

assay

-

reaction suitability

core: rhodium, reagent type: catalyst

reaction suitability

core: rhodium, reagent type: catalyst

reaction suitability

core: rhodium, reagent type: catalyst

reaction suitability

core: iridium, reagent type: catalyst

form

solid

form

solid

form

solid

form

crystals

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

mp

154-156 °C (lit.)

mp

141-142 °C

mp

150 °C (dec.) (lit.)

mp

150-155 °C (dec.)

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

signalword

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
MKCW2293
MKCV8243
MKCW9972
MKCT8207
MKCS2052

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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
Breit, B.; Seiche, W.,
Synthesis, 1-1 (2001)
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
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)

Articles

Umicore Precatalysts

Precatalysts for asymmetric catalysis offer batch-to-batch consistency in a range of catalytic reactions, supporting diverse research needs.

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