92751

1-(Trimethylsilyl)imidazole

≥98.0%

• Synonym(s): N-Trimethylsilylimidazole, TMSI, TSIM
• Empirical Formula (Hill Notation): C₆H₁₂N₂Si
• CAS Number: 18156-74-6
• Molecular Weight: 140.26
• Beilstein: 606148
• EC Number: 242-040-3
• MDL number: MFCD00005280
• UNSPSC Code: 12352005
• PubChem Substance ID: 329770163
• NACRES: NA.22

Properties

• grade: synthesis grade
• Quality Level: 200
• Assay: ≥98.0% (T); ≥98.0%
• form: liquid
• refractive index: n20/D 1.475 (lit.)
• bp: 93-94 °C/14 mmHg (lit.)
• density: 0.957 g/mL at 20 °C; 0.956 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: C[Si](C)(C)n1ccnc1
• InChI: 1S/C6H12N2Si/c1-9(2,3)8-5-4-7-6-8/h4-6H,1-3H3
• InChI key: YKFRUJSEPGHZFJ-UHFFFAOYSA-N

Description

Application

1-(Trimethylsilyl)imidazole may be used as an effective alternative to N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA) and N-methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA) for the efficient silylation of Ti-MCM-41, a titanium substituted mesoporous molecular sieve. This process enhances the hydrophobicity and catalytic activity of Ti-MCM-41 catalyst for cyclohexene epoxidation with aqueous hydrogen peroxide.[1]

Other Notes

Powerful silylating agent, particularly for alcohols[2][3][4]; Synthesis of acyl imidazolides[5]

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H225,H302,H315,H319
• Precautionary Statements: P210 - P233 - P240 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 42.8 °F - closed cup
• Flash Point(C): 6 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves