809136

3-Propyl-3-(2,3,5,6-tetrafluoro-4-nitrophenyl)-1,5-dioxaspiro[5.5]undecane-2,4-dione

• Empirische Formel (Hill-System): C₁₈H₁₇F₄NO₆
• CAS-Nummer: 1632145-40-4
• Molekulargewicht: 419.32
• UNSPSC Code: 12352202
• PubChem Substance ID: 329769141
• MDL number: MFCD28359688
• Form: powder

Eigenschaften

• InChI: 1S/C18H17F4NO6/c1-2-6-18(9-10(19)12(21)14(23(26)27)13(22)11(9)20)15(24)28-17(29-16(18)25)7-4-3-5-8-17/h2-8H2,1H3
• SMILES string: FC1=C(F)C([N+]([O-])=O)=C(F)C(F)=C1C2(CCC)C(OC3(CCCCC3)OC2=O)=O
• InChI key: JWAHHCQJIGIGMQ-UHFFFAOYSA-N
• form: powder
• storage temp.: 2-8°C

Beschreibung

General description

3-Propyl-3-(2,3,5,6-tetrafluoro-4-nitrophenyl)-1,5-dioxaspiro[5.5]undecane-2,4-dione can be synthesized from pentafluoronitrobenzene, 3-propyl-1,5-dioxaspiro[5.5]undecane-2,4-dione, N,N-diisopropylethylamine and CH₃CN.

Application

This compound undergoes cycloreversion to form the fluoro(hetero)aryl ketene, which undergoes efficient coupling with nucleophiles and allows rapid incorporation of highly fluorinated α-fluoro(hetero)aryl acetic acid derivatives.

Other Notes

Selective Perfluoro- and Polyfluoroarylation of Meldrum′s Acid

Sicherheitshinweise

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Lagerklasse: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable