209058

Sigma-Aldrich

Rhodium(II) acetate dimer

powder

Synonym(s):
Rh2(OAc)4, Tetrakis(acetato)dirhodium(II), Dirhodium tetraacetate
Linear Formula:
Rh2(OOCCH3)4
CAS Number:
Molecular Weight:
441.99
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

form

powder

Quality Level

reaction suitability

core: rhodium
reagent type: catalyst

SMILES string

CC(=O)O[Rh]OC(C)=O.CC(=O)O[Rh]OC(C)=O

InChI

1S/4C2H4O2.2Rh/c4*1-2(3)4;;/h4*1H3,(H,3,4);;/q;;;;2*+2/p-4

InChI key

SYBXSZMNKDOUCA-UHFFFAOYSA-J

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Packaging

1, 2, 25 g in glass bottle
50, 250 mg in glass bottle
Bottomless glass bottle. Contents are inside inserted fused cone.

Application

Effective catalyst for ylide formation.
Homogeneous catalyst.
Used in an efficient synthesis of ß-hydroxy-α-arylacrylates involving the decomposition of diazoetster intermediates with concomitant 1,2-arylmigration.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Shifa Zhu et al.
Organic letters, 6(3), 377-380 (2004-01-30)
[reaction: see text] Rh(2)(OAc)(4) catalyzed the formation of exclusively trans fluorinated alkenes from aldehydes and pentafluorobenzaldehyde tosylhydrazone salts, which were readily prepared from pentafluorobenzaldehyde using the Bamford-Stevens reaction. A series of pentafluorophenyl-containing alkenes were synthesized from aldehydes in moderate to...
Catalytic enantioselective C-H activation by means of metal-carbenoid-induced C-H insertion.
Huw M L Davies et al.
Chemical reviews, 103(8), 2861-2904 (2003-08-14)
Zhaohui Qu et al.
The Journal of organic chemistry, 69(1), 217-219 (2004-01-03)
The relative rate constants for the Rh(II)-catalyzed insertion of diazoacetone into the O-H bond have been measured through intermolecular competitions. The kinetic data were subjected to Hammett correlation analysis, and mechanistic implication of the results with respect to a stepwise...
Tetrahedron Letters, 48, 1147-1147 (2007)
Sugimura, T.; Mori, A.
Tetrahedron Asymmetry, 14, 881-881 (2003)

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