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Trimethylacetic acid can be used as an internal chemical-shift standard for NMR of aqueous solutions. It is a metabolite of oral cephem (β-lactam) antibiotics such as S-1108, containing pivaloyl moieties.
S.Albert; H.S.Gutowsky; J.A.Ripmeester. NMR investigations of solid (CH3)3CCOOH (trimethylacetic acid) and (CH3)3CCOOD. J. Chem. Phys. 1976, 64, (8),3277
Alfred L.Miller; Newell C.Cook; Frank C.Whitmore. The Ketonic Decarboxylation Reaction1: The Ketonic Decarboxylation of Trimethylacetic Acid2 and Isobutyric Acid. J. Am. Chem. Soc. 1950, 72, (6),2732-2735
In the presence of an Ag(II) species (from silver nitrate and ammonium persulfate in TFA), tert-butyl radicals are generated. With quinoline, the 2-tert-butyl substituted derivative is formed in high yield: Tetrahedron, 46, 2525 (1990), whereas for most other carboxylic acids, both 2- and 4-substitution usually occur.
Hazard Statements: H302-H311-H314
Harmful if swallowed. Toxic in contact with skin. Causes severe skin burns and eye damage.
Precautionary Statements: P260-P264b-P270-P280-P301+P312-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P363-P501c
Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Rinse mouth. Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant