1279716-59-4

Basic information

• Product Name: 1-(4-cyanophenyl)-2,4,4,4-tetrafluoro-1,3-butanedione
• CAS NO: 1279716-59-4
• Molecular Weight: 259.16
• Mol File: 1279716-59-4.mol

Chemical Properties

• CAS DataBase Reference: 1-(4-cyanophenyl)-2,4,4,4-tetrafluoro-1,3-butanedione(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(4-cyanophenyl)-2,4,4,4-tetrafluoro-1,3-butanedione(1279716-59-4)
• EPA Substance Registry System: 1-(4-cyanophenyl)-2,4,4,4-tetrafluoro-1,3-butanedione(1279716-59-4)

Safety Data

• Hazardous Substances Data: 1279716-59-4(Hazardous Substances Data)

Upstream product

• 1443-80-7 4-cyanophenyl methyl ketone 

Relevant articles and documents

Electron-deficient aryl β-diketones: Synthesis and novel tautomeric preferences

Fluorinated aryl β-diketones were prepared using Claisen and electrophilic fluorination methods. The keto-enol and enol-enol tautomerism of these compounds were examined in the solid state, as neat liquids and in polar, aprotic solution by crystallography and spectroscopy. Neat-liquid spectroscopic measurements as well as single crystal X-ray crystallographic results for selected electron-deficient aryl β-diketones suggest a single, chelated cis-enol isomer that is conjugated with the aryl ring. In polar aprotic solvents, nonfluorinated aryl β-diketones equilibrate rapidly from the chelated cis-enol form to a tautomeric mixture of cis-chelated enol and a substantial proportion of the diketone form, trifluoromethylated aryl β-diketones show only limited equilibration from the chelated cis-enol to the diketone form, with 2-fluoro-1-aryl β-diketones again displaying only the diketonic form.