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656623

Sigma-Aldrich

1,3-Bis-(2,6-diisopropylphenyl)imidazolinium chloride

97%

Synonym(s):

N,N′-(2,6-Diisopropylphenyl)dihydroimidazolium chloride

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About This Item

Empirical Formula (Hill Notation):
C27H39ClN2
CAS Number:
258278-25-0
Molecular Weight:
427.06
MDL number:
MFCD07369796
UNSPSC Code:
12352005
PubChem Substance ID:
24884212
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

100

Assay

97%

form

solid

reaction suitability

reagent type: ligand

mp

289-293 °C (lit.)

SMILES string

[Cl-].CC(C)c1cccc(C(C)C)c1N2CC[N+](=C2)c3c(cccc3C(C)C)C(C)C

InChI

1S/C27H39N2.ClH/c1-18(2)22-11-9-12-23(19(3)4)26(22)28-15-16-29(17-28)27-24(20(5)6)13-10-14-25(27)21(7)8;/h9-14,17-21H,15-16H2,1-8H3;1H/q+1;/p-1

InChI key

LWPXTYZKAWSRIP-UHFFFAOYSA-M

Related Categories

Application

N-Heterocyclic Carbene Ligands
The palladium/1,3-bis-(2,6-diisopropylphenyl)imidazolinium chloride (IPr·HCl) system can efficiently catalyze the Suzuki-Miyaura coupling of aryl chlorides with aryl boronic acids.[1]
Used as a precursor to the free carbene 1,3-bis(2,6-diisopropylphenyl)-2-imidazolidinylidene, and also used as an in situ formed catalyst in a variety of reactions, e.g. amination, Heck coupling reaction, the ring-opening metathesis polymerization (ROMP), hydrogenation.
Used in an efficient, one-pot synthesis of N-heterocyclic carbene-allylpalladium complexes.[2]

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Description
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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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCN0174
MKCH7463
MKCB3838
MKBV9204V
MKBP0376V

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Merritt B Andrus et al.
Organic letters, 4(12), 2079-2082 (2002-06-07)
[reaction: see text] Catalyst formed from N,N-bis(2,6-diisopropylphenyl)dihydroimidazolium chloride and palladium(II) acetate (2 mol %) was used, without added base, to efficiently produce Heck coupled products with olefins and aryl diazonium tetrafluoroborate substrates. The reactions were performed at room temperature, giving
Synlett, 366-366 (2006)
Palladium-(N-heterocyclic carbene) hydrogenation catalysts.
Jeroen W Sprengers et al.
Angewandte Chemie (International ed. in English), 44(13), 2026-2029 (2005-02-24)
Suzuki?Miyaura cross-coupling of aryl and alkyl halides using palladium/imidazolium salt protocols.
Arentsen K, et al.
Tetrahedron Letters, 45(17), 3511-3515 (2004)
Li Wang et al.
Organic letters, 11(4), 891-893 (2009-02-10)
Imidazolinium-derived carbenes catalyze the ring-expansion lactonization of oxacycloalkane-2-carboxaldehydes. A variety of functionalized five-, six-, and seven-membered lactones can be formed efficiently under mild reaction conditions. The success of this new method for the construction of lactones is highly influenced by

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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