38093-90-2

Basic information

• Product Name: 4-carbomethoxyhexafluorobutyryl fluoride
• CAS NO: 38093-90-2
• Molecular Formula: C₆H₃F₇O₃
• Molecular Weight: 256.07
• Mol File: 38093-90-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-carbomethoxyhexafluorobutyryl fluoride(CAS DataBase Reference)
• NIST Chemistry Reference: 4-carbomethoxyhexafluorobutyryl fluoride(38093-90-2)
• EPA Substance Registry System: 4-carbomethoxyhexafluorobutyryl fluoride(38093-90-2)

Safety Data

• Hazardous Substances Data: 38093-90-2(Hazardous Substances Data)

Upstream product

• 14868-60-1 hexafluoroglutaric acid monomethyl ester 
• 21543-95-3 methyl 5-chloro-2,2,3,3,4,4-hexafluoro-5-oxopentanoate 

Relevant articles and documents

Process for the preparation of perfluorinated carboxylic acid fluorides

Perfluorinated carboxylic acid fluorides which also have an ester group in the molecule are prepared by decomposition of perfluorinated fluorosulfato compounds of the formula I STR1 in which R=alkyl, aryl or aralkyl with preferably up to 10 C atoms, in particular CH3 l or C2 H5, m=an integer from 1 to 10, preferably 1 to 8 and in particular 1 to 6, and n=0 or an integer from 1 to 10, preferably 0 to 3 or in particular 0 or 1, in the presence of catalytic amounts of at least one alkali metal fluoride and in the absence of solvents; the compounds have the formula II STR2 in which R, m and n have the same meaning as in formula I. The compounds II are valuable intermediates, in particular for the preparation of perfluorinated vinyl compounds, which can in turn be processed to homopolymers and copolymers which are exceptionally stable to chemicals or heat.