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Rhodium(II) acetate dimer

Product Name
Rhodium(II) acetate dimer
CAS No.
15956-28-2
Chemical Name
Rhodium(II) acetate dimer
Synonyms
Rh2(OAc)4;RHODIUM ACETATE DIMER;DIRHODIUM(II) TETRAACETATE;tetrakis(acetato)dirhodium;tetraac;Rh2(CH3CO2)4;Dimer acid rhodium;RHODIUM(11) ACETATE;dirhodiumtetraacetate;rhodiumdiacetatedimer
CBNumber
CB2332600
Molecular Formula
C8H12O8Rh2
Formula Weight
441.99
MOL File
15956-28-2.mol
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Rhodium(II) acetate dimer Property

Melting point:
205 °C
storage temp. 
Inert atmosphere,Room Temperature
solubility 
Methanol + Water (Slightly)
form 
powder
color 
Green to dark green
Water Solubility 
Soluble in aqueous solution like water. Slightly soluble in ethanol
Hydrolytic Sensitivity
0: forms stable aqueous solutions
Exposure limits
ACGIH: TWA 0.01 mg/m3
NIOSH: IDLH 2 mg/m3; TWA 0.001 mg/m3
Stability:
Hygroscopic
InChIKey
ANSVJOOIUURYRN-UHFFFAOYSA-N
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Safety

Hazard Codes 
Xi
Risk Statements 
36/38
Safety Statements 
37/39-26-15
WGK Germany 
3
RTECS 
VI9361000
TSCA 
No
HS Code 
28439000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
209058
Product name
Rhodium(II) acetate dimer
Purity
powder
Packaging
1g
Price
$534
Updated
2024/03/01
Sigma-Aldrich
Product number
209058
Product name
Rhodium(II) acetate dimer
Purity
powder
Packaging
2g
Price
$1580
Updated
2024/03/01
TCI Chemical
Product number
R0069
Product name
Rhodium(II) Acetate Dimer
Packaging
1g
Price
$976
Updated
2024/03/01
TCI Chemical
Product number
R0069
Product name
Rhodium(II) Acetate Dimer
Packaging
100mg
Price
$160
Updated
2024/03/01
Alfa Aesar
Product number
010560
Product name
Rhodium(II) acetate, dimer, Premion?, 99.99% (metals basis), Rh 46.2% min
Packaging
0.25g
Price
$270
Updated
2023/06/20
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Rhodium(II) acetate dimer Chemical Properties,Usage,Production

Chemical Properties

Rhodium(II) acetate dimer is Emerald Green Powder. Soluble in methanol. It is soluble in water, while the relative solubility of copper acetate in water is small.

Uses

Rhodium (II) Acetate Dimer is a effective catalyst for ylide formation and it is also catalyst for cyclopropanation of alkenes, oxidation of alcohols, cyclization reactions involving -diazo carbonyl groups, insertion into C-H and X-H bonds (X-H is NH or SH or OH). More reactive and useful in differentiating ribonucleosides and deoxynucleosides. It is also used in functionalizing fullerenes into polymers. Efficient catalyst for hydrogen transfer from 2-propanol to cyclohexanone and other unsaturated compounds.

Application

Rhodium (II) Acetate Dimer is used in the preparation of molybdenum triisopropylbenzoate isonicotinate which maintains ambivalent properties.

Preparation

Rhodium(II) acetate dimer synthesis: A suspension of 10.0g. of Rh(OH)3.H20 in 400 ml. of glacial acetic acid dissolved upon refluxing for 18 hr. to give a deep emerald-green solution. Most of the acetic acid was evaporated on a steam bath; remaining traces mere removed by heating the residue at 120° for 1hr. The residue was then extracted with boiling acetone until the extract was colorless rather than bluish green. The extract was quickly passed through a fritted glass filter, concentrated on a steam bath to 1/3 its original volume, and placed in the freezing compartment of a refrigerator for 18hr. The resulting large dark green crystals were collected on a filter, washed with small portions of ice-cold acetone, and dried at 110°. When first collected, the product is the weak adduct [Rh(OOCCH3)2(CH3)2C0]2; however, acetone is lost fairly readily at room temperature and immediately in the drying oven; yield, 6.2g. (48%).

Reactions

Catalyst for insertion into C-H and X-H bonds.
Catalyst for Ylide generation.
Doyle Kirmse Reaction of Allylic Sulfides with Diazoalkane.
Claisen rearrangement.
Epoxides from aldehydes.
Synthesis of aziridines from allylic N-tosyloxycarbamates.
Rh/NHC catalyzed direct intermolecular arylation of C-H bonds.
Chiral Bronsted acid-Rh catalyzed three component reactions of diazo compounds with alcohols and imines.
Rh-catalyzed cyclopropenations of ynamides.
Tandem asymmetric aza-Darzens/ring-opening reactions.


Purification Methods

Dissolve 5g of the salt in boiling MeOH (ca 600mL) and filter. Concentrate it to 400mL and chill overnight at ca 0o to give dark green crystals of the MeOH adduct. Concentration of the mother liquors gives a further crop of [Rh(OAc)2]2.2MeOH. The adduct is then heated at 45o in a vacuum for 2hours (all MeOH is lost) to leave the emerald green crystals of the actetate. [Legzdins et al. J Chem Soc (A) 3322 1970.] Alternatively dissolve the acetate in glacial AcOH and reflux for a few hours to give an emerald green solution. Evaporate most of the AcOH on a steam bath, then heat the residue at 120o/1hour. Extract the residue with boiling Me2CO. Filter, concentrate to half its volume and keep at 0o/18hours. Collect the crystals, wash them with ice cold Me2CO and dry them at 110o. It is soluble in most organic solvents with which it forms adducts including Me3N and Me2S and gives solutions with different colours varying from green to orange and red. [UV: Johnson et al. Inorg Chem 2 960 1963, Beilstein 1 H 124.]

Rhodium(II) acetate dimer Preparation Products And Raw materials

Raw materials

Preparation Products

(1R,2R)-N-BOC-1-AMINO-2-PHENYLCYCLOPROPANECARBOXYLIC ACID
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View Lastest Price from Rhodium(II) acetate dimer manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
Rhodium(II) acetate dimer 15956-28-2
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2021-08-27
Hebei Mojin Biotechnology Co., Ltd
Product
Rhodium(II) acetate dimer 15956-28-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-09-01
henan kanbei chemical co.,ltd
Product
Rhodium(II) acetate dimer 15956-28-2
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000kg
Release date
2022-09-20

15956-28-2, Rhodium(II) acetate dimerRelated Search:

DILINOLEIC ACID Sodium acetate Diisopropylammonium dichloroacetate Vinyl acetate Rhodium Ethyl acetate Rhodium acetate POLY(VINYL ACETATE) Rhodium(II) octanoate dimer Rhodium(III) Chloride Silver acetate Hydrazine acetate YTTERBIUM(III) ACETATE HYDRATE Cupric acetate monohydrate PEG4-tert-butyl acetate Zinc acetate Ammonium acetate Potassium Acetate

  • tetrakis-(mu-acetato)dirhodium
  • Rhodium(Ⅱ) acetate dimer ,99% [anhydrous, 46% Rh]
  • Rhodium(II) acetate dimer dihydrate,Dirhodium tetraacetate, Tetrakis(acetato)dirhodium(II)
  • Rhodium(II) acetate dimer,Dirhodium tetraacetate, Tetrakis(acetato)dirhodium(II)
  • tetrakis[mu-(acetato-O:O')]dirhodium
  • RHODIUM(II) ACETATE DIMER, POWDER
  • RHODIUM(II) ACETATE DIMER, 99.99+% METALS BASIS
  • RhodiuM(II) acetate diMer, anhydrous, ca 46% Rh 1GR
  • RhodiuM(II) acetate diMer, anhydrous, ca 46% Rh 250MG
  • RhodiuM(II) acetate diMer,98% Rh2(OAc)4
  • Dirhodium(II) Tetraacetate Tetrakis(acetato)dirhodium(II)
  • RhodiuM(Ⅱ) acetate diMer, anhydrous, 46% Rh
  • Rhodium(Ⅱ) acetate dimer
  • Rhodium(II) acetate dimer dihydrate, 98+%
  • tetraac
  • Rhodium(II) acetate dimer, 99%, anhydrous, 46% Rh
  • 12.Rhodium(II) Acetate Dimer
  • TETRAKIS(ACETATO)DIRHODIUM(II)
  • tetrakis[micron-(acetato-o:o')]dirhodium
  • RHODIUM ACETATE DIMER
  • RHODIUM(II) ACETATE DIMER
  • dirhodiumtetraacetate
  • rhodiumdiacetatedimer
  • tetraacetatodirhodium
  • tetrakis(acetato)dirhodium
  • tetrakis(mu-acetato)di-rhodiu
  • RhodiuM(Ⅱ) acetate diMer, 42% Rh, Product of UMicore
  • DIRHODIUM(II) TETRAACETATE
  • RhodiuM, tetrakis[M-(acetato-kO:kO')]di-, (Rh-Rh)
  • Rh2(OAc)4
  • Rhodium(II) acetate dimer 99.99% trace metals basis
  • Rh2(CH3CO2)4
  • Rhodium(II) acetate dimer (46.5% Rh) for synthesis
  • Rhodium(II) acetate, dimer, Rh 46.2% min.
  • RHODIUM(II) ACETATE DIMER DIHYDRATE, ~43 % RH
  • Rhodium(II)acetatedimeredihydrate
  • Rhodium(II) acetate dimer, anhydrous, ca 46% Rh
  • Rhodium(II)acetatedimer,99%
  • Rhodium, tetrakis.mu.-(acetato-.kappa.O:.kappa.O)di-, (Rh-Rh)
  • RHODIUMACETATEDIMER,ANHYDROUS
  • RHODIUM(II) ACETATE DIMER , (43%RH)
  • TETRAKIS(ACETATO)DIRHODIUM(LL)HYDRATE
  • RHODIUM(11) ACETATE
  • Rhodium(II)acetate dimer rhodium(ii) acetate dimer
  • TETRAKIS[.MU.-(ACETATO-.KAPPA.O:.KAPPA.O'')]DI-RHODIUM
  • Rhodium(II) Acetate Dimer, Rh 46.6%
  • Tetrakis(acetato) rhodium (II) –2-hydrat
  • Rhodium(II) acetate, dimer, 98+%
  • Rhodium(II) acetate, dimer, Premion(R), 99.99% (metals basis), Rh 46.2% min
  • Rhodium, tetrakis[μ-(acetato-κO:κO')]di-, (Rh-Rh)
  • Rhodium(II) acetate dimer ISO 9001：2015 REACH
  • Dimer acid rhodium
  • RHODIUM (II) ACETATE DIMER For Synthesis
  • tetraacetate rhodium(2+)
  • Dichloro[bis(2-(diphenylphosphino)phenyl)ether]palladium(I)
  • Rhodium, tetrakis[μ-(acetato-κO:κO')]di-, (Rh-Rh)
  • Rhodium(II) acetate, dimer, Rh 46.3%
  • 15956-28-2