Organic compounds bearing a difluoroaminooxy group
摘要:
A preparative method for the synthesis of C- and N-difluoroaminooxy compounds was elaborated. The method involves the reaction of N,N-difluoro-O-fluorosulfonyl hydroxylamine with the corresponding alkoxides and N-oximide salts. It was shown that N-difluoroaminooxy compounds can add to olefins at the double bond.
Reaction of hexafluoropropylene and its oligomers with acetone oxime
摘要:
Reactions of perfluoropropylene and its oligomers with acetone oxime in the presence of a base afford perfluoroalkyl and/or perfluoroalkenyl ethers of acetone oxime. When heated to 100 degrees C, the 3-perfluoro-2-methyl-2-pentenyl ether of acetone oxime (3) is quantitatively converted to 4-hydroxy-3-methyl-5,5-bistrifluoromethyl-4-pentafluoroethyl-1-pyrroline (4), the structure of which was established by X-ray diffraction analysis. A convenient one-stage synthesis of perfluoro-3-isopropyl-4-methyl-3-penten-2-one (7) was proposed.