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Bis(cyclopentadienyl)zirconium dichloride - CAS 1291-32-3 - Formula C10H10Cl2Zr


Certificate of Analysis

Bis(cyclopentadienyl)zirconium dichloride

CAS: 1291-32-3 MDL: MFCD00003726  EINECS: 215-066-8
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Alternate Name: Zirconocene dichloride


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Chemical Properties

Formula: C10H10Cl2Zr  Melting point: 242-245°
Formula weight: 292.32  Boiling point: 124-125°/15mm
Form: Powder, Packaged under argon Sensitivity: Air & Moisture Sensitive

Literature References

Versatile organometallic reagent and catalyst. For a brief review, see: Synlett, 375 (1999). Other reviews: Organozirconium compounds in organic synthesis: Synthesis, 1 (1988); Recent advances in the chemistry of zirconocene and related compounds: Tetrahedron, 51, 4255 (1995); Synthetic applications of zirconocene complexes: Tetrahedron, 52, 12853 (1996). Formation of carbon-carbon bonds via 'zirconocene' (obtained by reaction of the dichloride with Grignard or lithium reagents): Synlett, 299 (1995). Reduction with n-BuLi in the presence of 2-butyne leads to a zirconium metallocycle: Tetrahedron Lett., 27, 2829 (1986), which is a useful intermediate for the synthesis of phospholes and analogous heterocycles in which the Zr atom is replaced by As, Sb, Bi, Si, Ge, Sn, Ga, S, Se or B: Org. Synth. Coll., 9, 653 (1998), and references therein:

For reaction of alkene-zirconocene complexes with cyclic enol ethers, see: Angew. Chem. Int. Ed., 43, 3932 (2004).

Other References

Harmonized Tariff Code:   2931.90

GHS Hazard and Precautionary Statements

Hazard Statements : H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements : P261-P280-P305+P351+P338-P304+P340-P405-P501A

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Harmful or Irritant

Risk & Safety

Risk Phrases: 36/37/38
Irritating to eyes, respiratory system and skin.
Safety Phrases: 26-37-60
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable gloves. This material and/or its container must be disposed of as hazardous waste.
RTECS: ZH7525000