CHLOROTRIS(TRIPHENYLPHOSPHINE)COBALT(I)
CHLOROTRIS(TRIPHENYLPHOSPHINE)COBALT(I) Basic information
- Product Name:
- CHLOROTRIS(TRIPHENYLPHOSPHINE)COBALT(I)
- Synonyms:
-
- CHLOROTRIS(TRIPHENYLPHOSPHINE)COBALT(I)
- cobalt(I) tris(triphenylphosphine) chloride
- Chlorotris(triphenylphosphine)cobalt(I), min. 98%
- Chlorotris(triphenylphosphine)cobalt(I),Min.98%
- Chlorotris(triphenylphosphine)cobalt(I),98% (PPh3)3CoCl
- Tris(triphenylphosphine)cobalt chloride
- Chlorotris(triphenylphosphine)
cobalt(I) - Cobalt,triphenylphosphane,chloride
- CAS:
- 26305-75-9
- MF:
- C54H45ClCoP3
- MW:
- 881.24
- Product Categories:
-
- Co
- metal-phosphine complex
- Catalysis and Inorganic Chemistry
- Chemical Synthesis
- Cobalt
- Mol File:
- 26305-75-9.mol
CHLOROTRIS(TRIPHENYLPHOSPHINE)COBALT(I) Chemical Properties
- Melting point:
- 135-139 °C (dec.)(lit.)
- storage temp.
- Inert atmosphere,Room Temperature
- solubility
- sol benzene and CH2Cl2; insol EtOH.
- form
- Powder
- color
- brown
- Water Solubility
- Insoluble in water.
- Sensitive
- Air & Moisture Sensitive
Safety Information
- Hazard Codes
- Xn
- Risk Statements
- 20/21/22
- Safety Statements
- 22-26-28-37/39
- WGK Germany
- 3
MSDS
- Language:English Provider:SigmaAldrich
CHLOROTRIS(TRIPHENYLPHOSPHINE)COBALT(I) Usage And Synthesis
Reaction
- Cobalt(I)-catalyzed, steroselective olefination of alkylzinc reagents with aryl aldehydes.
- Reagent for the reductive radical dimerization of 3-haloindoline derivatives.
- Cobalt-catalyzed, asymmetric addition of silylacetylene to 1,1-disubstituted allenes.
Description
Chlorotris(triphenylphosphine)cobalt is a monovalent cobalt complex; homogeneous catalyst for hydrogenation and hydrodimerization of alkenes; strong nucleophile, reacting with alkyl acyl halides to afford coupling products; useful for the preparation of organocobalt complexes.
Uses
A stoichiometric reducing agent that is used in the radical dimerization of halogenated organic molecules.
Uses
A stoichiometric reducing agent employed in the radical dimerization of halogenated organic molecules.
Preparation
Preparative Methods of Chlorotris(triphenylphosphine)cobalt: a solution of Cobalt(II) Chloride hexahydrate (0.6 g, 2.5 mmol) and Triphenylphosphine (2.0 g, 7.6 mmol) in EtOH (70 mL) was treated under N2 and stirring with a solution of Sodium Borohydride (0.08 g, 2.1 mmol) in EtOH at 30-40 °C; the resulting brown-green precipitate was washed several times with EtOH and water and dried (yield 92%);[1] reductions with powdered Zn, and electrolysis, are equally effective methods; corresponding Br and I complexes are prepared similarly from CoBr2 and CoI2.
storage
Chlorotris(triphenylphosphine)cobalt is fairly stable in air; it has been stored under N2 atmosphere over several months at rt.
References
1. (a) Aresta, M.; Rossi, M.; Sacco, A. ICA 1969, 3, 227. (b) Holah, D. G.; Hughes, A. N.; Hui, B. C.; Kan, C. T. CJC 1978, 56, 814.
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