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153583

Sigma-Aldrich

1-(Trimethylsilyl)imidazole

96%

Synonyme(s) :

N-Triméthylsilylimidazole

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About This Item

Formule empirique (notation de Hill) :
C6H12N2Si
Numéro CAS:
18156-74-6
Poids moléculaire :
140.26
Beilstein:
606148
Numéro CE :
242-040-3
Numéro MDL:
MFCD00005280
Code UNSPSC :
12352005
ID de substance PubChem :
24849355
Nomenclature NACRES :
NA.22
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Qualité

synthesis grade

Essai

96%

Forme

liquid

Indice de réfraction

n20/D 1.475 (lit.)

pb

93-94 °C/14 mmHg (lit.)

Densité

0.956 g/mL at 25 °C (lit.)

Température de stockage

2-8°C

Chaîne SMILES 

C[Si](C)(C)n1ccnc1

InChI

1S/C6H12N2Si/c1-9(2,3)8-5-4-7-6-8/h4-6H,1-3H3

Clé InChI

YKFRUJSEPGHZFJ-UHFFFAOYSA-N

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Application

1-(Trimethylsilyl)imidazole (TMSI) was used for derivatization of carbohydrates into trimethylsilyl ethers[1]. It was also used to synthesize polysubstituted chiral spirotetrahydropyrans[2] and as silylating reagent for the protection of hydroxyl groups in the presence of amine functionalities.[3]
Silylating reagent for the protection of hydroxyl groups in the presence of amine functionalities.[3]

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

Pictogrammes

FlameExclamation mark
GHS02,GHS07

Mention d'avertissement

Danger

Mentions de danger

H225,H302,H315,H319

Classification des risques

Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

42.8 °F - closed cup

Point d'éclair (°C)

6 °C - closed cup

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificats d'analyse (COA)

Lot/Batch Number
SDBB0828
STBK8588
SDBB1367
STBL2287
STBK3062

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Consulter la Bibliothèque de documents

Maiwenn Jacolot et al.
Organic letters, 14(1), 58-61 (2011-12-02)
We report a TMSI-promoted Prins cyclization reaction with ketones as carbonyl partners to prepare polysubstituted chiral spirotetrahydropyrans. In the presence of racemic 2-methylcyclohexanone a dynamic kinetic resolution occurred affording one stereoisomer. The observed enantiospecificity has been rationalized by DFT calculation.
Synthetic Communications, 23, 2191-2191 (1993)
Marijana M Ačanski et al.
Food chemistry, 145, 743-748 (2013-10-17)
Gas chromatography with mass spectrometry was used for carrying out a qualitative analysis of the ethanol soluble flour extract of different types of cereals bread wheat and spelt and pseudocereals (amaranth and buckwheat). TMSI (trimethylsilylimidazole) was used as a reagent
Silylated N,O-ketals from the reaction of ketones with N-trimethylsilylimidazole.
P A Andrews et al.
Journal of chromatography, 419, 271-274 (1987-08-07)
Qin Zhao et al.
Journal of chromatography. A, 1240, 45-51 (2012-04-24)
In the present work, we developed a novel dispersive microextraction technique by combining the advantages of liquid-phase microextraction (LPME) and magnetic solid-phase extraction (MSPE). In this method, trace amount of water directly absorbed on bare Fe₃O₄ to form water-coated Fe₃O₄
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Questions

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  1. 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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  2. 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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