| Identification | Back Directory | [Name]
DIFLUOROACETIC ANHYDRIDE | [CAS]
401-67-2 | [Synonyms]
DIFLUOROACETIC ANHYDRIDE
2,2-difluoroacetic anhydride
DIFLUOROACETIC ACID ANHYDRIDE
2,2-Difluoro-acetic acid 1,1'-anhydride
1,1,5,5-Tetrafluoro-3-oxapentan-2,4-dione | [EINECS(EC#)]
200-258-5 | [Molecular Formula]
C4H2F4O3 | [MDL Number]
MFCD02093315 | [MOL File]
401-67-2.mol | [Molecular Weight]
174.05 |
| Chemical Properties | Back Directory | [Boiling point ]
94℃ | [density ]
1.4 | [refractive index ]
1.3410-1.3450 | [Fp ]
11℃ | [form ]
clear liquid | [color ]
Colorless to Light yellow to Light orange | [Specific Gravity]
1.59 | [InChI]
InChI=1S/C4H2F4O3/c5-1(6)3(9)11-4(10)2(7)8/h1-2H | [InChIKey]
QNRXDQIHPGZCFB-UHFFFAOYSA-N | [SMILES]
C(=O)(C(F)F)OC(=O)C(F)F | [CAS DataBase Reference]
401-67-2 |
| Hazard Information | Back Directory | [Chemical Properties]
Light yellow liquid | [Synthesis]
1. Difluoroacetic acid reacts with phosphorus pentoxide. Distillation yields difluoroacetic anhydride.
2. More difluoroacetic acid is added to the residue from step 1. Distillation gives a mixture containing the anhydride.
3. Difluoroacetic acid and |
| Questions And Answer | Back Directory | [Application]
Difluoroacetic anhydride is mainly used as an acylation reagent in organic synthesis to introduce difluoroacetyl groups. Difluoroacetate is mainly used as an intermediate in pesticides, pharmaceuticals, and fluorine-containing fine chemicals, and can also be used as a solvent in lithium battery electrolytes. |
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