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/REAXYS Number: 606148
• EC Number: 242-040-3
• MDL number: MFCD00005280
• UNSPSC Code: 12352005
• PubChem Substance ID: 329770163
• NACRES: NA.22

Properties

• grade: synthesis grade
• 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.

Other Notes

Powerful silylating agent, particularly for alcohols; Synthesis of acyl imidazolides

Safety Information

• pictograms: GHS02,GHS07
• signalword: Danger
• hcodes: H225,H315,H319,H335
• pcodes: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 42.8 °F - closed cup
• flash_point_c: 6 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter