Chlorobis(ethylene)rhodium (I) dimer → HCID 131716647, compound

HRID 1088540Notes

Reaction equation

HRID 1088540 reaction equation
[CH3:1][C:2]1C=C[C:5]2C=1C(C)=[C:8](C)[C:7]1=[C:13]([CH3:17])[C:14]([CH3:16])=[C-:15][C:6]=21.[Li+].[CH2:19]=[CH2:20].C=C.C=C.C=C.[Cl-].[Cl-].[Rh:29].[Rh]>C1COCC1.CCCCCC>[CH2:1]=[CH2:2].[CH2:19]=[CH2:20].[Rh:29].[CH3:19][CH:15]1[C:14]([CH3:16])=[C:13]([CH3:17])[C:7]([CH3:8])=[C:6]1[CH3:5]

Participants

5

Reactant 2

HCID 45357812Chlorobis(ethylene)rhodium (I) dimerHCID 131716648HCID 131716648, compound

Product 1

HCID 131716647HCID 131716647, compoundYield 261.4%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8058HexaneSolvent

Procedure

All operations are performed under an inert atmosphere and with dry, degassed solvents. Lithium pentamethylcyclopentaindenide powder (720 mg, 5.06 mmoles) is added in several portions to a cooled slurry of 1.0 g (2.54 mmoles) of chlorobis(ethylene)rhodium(I) dimer in 40 ml of THF. The mixture darkens as it comes to room temperature. The mixture is stirred several hours at room temperature then the solvent is stripped off at reduced pressure. The black residue is taken up in hexane, filtered and passed through a 6-inch column of activated neutral alumina with hexane eluent. The yellow fraction is collected which yields 980 mg of pentamethylcyclopentadiene rhodium bisethylene as a yellow solid (64 percent yield).

Workup

  1. customwith dry
  2. customdegassed solvents
  3. customcomes to room temperature
  4. filtrationfiltered
  5. customThe yellow fraction is collected which

Sources & evidence

ORD record
ord-f4cbeb3dcd0f4457be14836350e920b2
Source dataset
uspto-grants-1990_10
Patent number
US04962253

Reaction notes

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