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CAS RN: 1352745-18-6 | Product Number: B6169

[1,3-Bis(ethoxycarbonyl)-2,4,5-trimethylcyclopentadien-1-yl]rhodium(III) Dichloride Dimer

Purity: >95.0%(T)
  • Dichloro[1,3-bis(ethoxycarbonyl)-2,4,5-trimethylcyclopentadienyl]rhodium(III) Dimer
  • Bis[(1,2,3,4,5-η)-1,3-bis(ethoxycarbonyl)-2,4,5-trimethyl-2,4-cyclopentadien-1-yl]di-μ-chlorodichlorodirhodium
  • [CpERhCl2]2
18   18   8  
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Product Number B6169
Purity / Analysis Method >95.0%(T)
Molecular Formula / Molecular Weight C__2__8H__3__8Cl__4O__8Rh__2 = 850.22 
Physical State (20 deg.C) Solid
Store Under Inert Gas Store under inert gas
Condition to Avoid Air Sensitive
CAS RN 1352745-18-6
Reaxys Registry Number 22736874
PubChem Substance ID 468590956
Appearance Light yellow to Brown powder to crystal
Purity(Argentometric Titration) min. 95.0 %
Properties (reference)
Related Laws:
Transport Information:
CpE Rh Complex catalyzed Benzofuran Synthesis through sequential Oxidative Annulation and Decarboxylation

To a 20 mL two-necked flask with a reflux condenser are added 2,2-diarylalkanoic acid (1, 0.5 mmol), [CpERhCl2]2 (8.5 mg, 0.01 mmol), AgSbF6 (14 mg, 0.04 mmol), Cu(OAc)2·H2O (200 mg, 1 mmol), K2CO3 (69 mg, 0.5 mmol), 1-methylnaphthalene (ca. 40 mg) as internal standard, and diglyme (3 mL). The resulting mixture is stirred under nitrogen at 100−120 °C for 20−48 h. After cooling, the reaction mixture is extracted with ethyl acetate (100 mL) and ethylenediamine (2 mL). The organic layer is washed with water (100 mL, three times), dried over Na2SO4 and concentrated under reduced pressure. The residue is purified by column chromatography on silica gel using hexane to give 2; yield: up to 65%.


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