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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

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

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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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Baekhap Choi et al.
Macromolecular rapid communications, 34(6), 533-538 (2013-01-29)
Catalytic natures of organometallic catalysts are modulated by coordinating organic ligands with proper steric and electronic properties to metal centers. Carbon-based nanomaterials such as graphene nanoplatelets are used with and without N-doping and multiwalled carbon nanotube as a ligand for
Sven Tobisch
Dalton transactions (Cambridge, England : 2003), (35)(35), 4277-4285 (2006-08-26)
The complete sequence of steps of a tentative catalytic cycle for intramolecular hydroamination/cyclisation (IHC) of 4,5-hexadien-1-ylamine (1) by a prototypical cationic [Cp(2)ZrCH(3)](+) zirconocene precatalyst (2) has been examined by employing a gradient-corrected DFT method. The predicted smooth overall reaction energy
José Barluenga et al.
Organic letters, 9(16), 3081-3084 (2007-07-20)
A new regio- and stereoselective zirconocene-catalyzed reaction for the synthesis of medium-sized rings is described. The global reaction supposes a formal ring expansion of a cyclic enol ether to give a functionalized carbocycle.
Christine Bibal et al.
Dalton transactions (Cambridge, England : 2003), (21)(21), 2866-2870 (2008-05-15)
A new family of hydroxytris(pentafluorophenyl)borate anions [B(C6F5)3OH](-) associated with organic and aprotic cations c+ (imidazolium, pyrrolidinium and phosphonium) has been prepared by a general one-pot synthesis that implies the chloride borate analogues [B(C6F5)3Cl](-)[c]+. The [c]+[B(C6F5)3OH](-) salts have been isolated and
Andy M Chapman et al.
Journal of the American Chemical Society, 133(45), 18463-18478 (2011-10-01)
The extension of the frustrated Lewis pair (FLP) concept to the transition series with cationic zirconocene-phosphinoaryloxide complexes is demonstrated. Such complexes mimic the reactivity of main group FLPs in reactions such as heterolytic hydrogen cleavage, CO(2) activation, olefin and alkyne
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