Reaction with carbonyl difluoride

The dismutation of phosgene and its related reaction with carbonyl difluoride are discussed in Section 8.2 and Chapter 13. Its reactions with CO(NCE)j (E = O or S) are... 

As with phosgene (Section 10.1.3), "ene" reactions with carbonyl difluoride are unknown [972]. 

Cyclic ethers would be expected to undergo ring-opening reactions with carbonyl difluoride as with phosgene. Epoxyethane reacts with two moles of COFj, in the presence of pyridine, according to the following equations [24a] ... 

A higher (62%) yield of benzoyl fluoride was obtained from the reaction of benzoic acid and COFj in the presence of sodium fluoride, by beating the charged vessel at 175 "C for 10 h. The presence of the highly electronegative fluorine atom in benzoyl fluoride clearly deactivates the carbonyl group for further reaction with carbonyl difluoride. 

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See also in sourсe #XX -- [ , , ]

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