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196215

Sigma-Aldrich

Bis(cyclopentadienyl)zirconium(IV) dichloride

greener alternative

≥98%

Synonym(s):

Dichlorodicyclopentadienylzirconium, Dichlorozirconocene, Zirconium dicyclopentadiene dichloride, Di(cyclopentadienyl)zirconium(IV) dichloride, Zirconocene dichloride

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About This Item

Empirical Formula (Hill Notation):
C10H10Cl2Zr
CAS Number:
1291-32-3
Molecular Weight:
292.32
EC Number:
215-066-8
MDL number:
MFCD00003726
UNSPSC Code:
12161600
PubChem Substance ID:
24851743
NACRES:
NA.22

Quality Level

100

Assay

≥98%

form

solid

reaction suitability

core: zirconium
reaction type: Polymerization Reactions
reagent type: catalyst
reaction type: Olefin Metathesis

greener alternative product characteristics

Catalysis
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

parameter

moisture sensitive

mp

242-245 °C (lit.)

greener alternative category

, Aligned

storage temp.

2-8°C

SMILES string

Cl[Zr]Cl.[CH]1[CH][CH][CH][CH]1.[CH]2[CH][CH][CH][CH]2

InChI

1S/2C5H5.2ClH.Zr/c2*1-2-4-5-3-1;;;/h2*1-5H;2*1H;/q;;;;+2/p-2

InChI key

QRUYYSPCOGSZGQ-UHFFFAOYSA-L

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General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for catalytic efficiency. Find details here.

Zirconocene dichloride serves as a catalyst, enabling efficient synthesis of pyrrole with high yields and simplifies the purification process economically.

Application

Used to promote greener amidations of carboxylic acids and amines in catalytic amounts. This technology avoids the requirement of preactivation of the carboxylic acid or use of coupling reagents.

Direct amide formation from unactivated carboxylic acids and amines
Useful in the synthesis of a wide range of early-transition-metal complexes and organometallic compounds.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Vidar R Jensen et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 6(9), 1929-1933 (2005-08-03)
Free Car-Parrinello molecular dynamics (CPMD) simulations of four diastereomers of the zirconium-propene complexes [{iPr(3-iPr-CpFlu)}ZriBu(C3H6)]+ (Cp=cyclopentadienyl; Flu=fluorenyl) provide valuable insight into the mechanism and stereocontrol of propene polymerization with stereorigid metallocenes. Spontaneous insertion of propene into the zirconium-isobutyl bond is not
Leo A Paquette et al.
Organic letters, 7(3), 511-513 (2005-01-28)
[reaction: see text] A synthetic route to select cyclooctane-1,2,3-triols and 1,2,3,4,5-pentaols has been defined. The starting materials are d-glucose or d-arabinose, and the key steps consist of a zirconocene-promoted ring contraction, a [3,3] sigmatropic rearrangement, and more extended functionalization of
Aldrichimica Acta, 17, 28-28 (1984)
Anita Lagutschenkov et al.
The journal of physical chemistry. A, 114(5), 2073-2079 (2010-01-21)
Cationic zirconocene complexes are active species in Ziegler-Natta catalysis for olefin polymerization. Their structure and metal-ligand bond strength strongly influence their activity. In the present work, the infrared multiphoton dissociation (IRMPD) spectrum of mass selected Zr(C(5)H(5))(2)(OH)(CH(3)CN)(+) cations was obtained in
Shaoguang Zhang et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 15(46), 12608-12617 (2009-11-03)
A zirconocene-mediated one-pot multicomponent synthesis process leading to the synthesis of pyrrolo[3,2-c]pyridine (5-azaindoles) and pyrrole derivatives has been developed starting from a silicon-tethered diyne and three or two different or identical organonitriles. Pyrrolo[3,2-c]pyridine and pyrrole derivatives with diverse structures and
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