1,1,1,2,3,3-HEXAFLUORO-2-IODINE-3-METHOXYPROPANE AS SEMI-PRODUCTS FOR PRODUCTION OF FLUORIDE 2,3,3,3-TETRAFLUORO-2-IODPROPIONYL AND METHOD OF PRODUCING LATTER Russian patent published in 2018 - IPC C07C43/12 C07C51/58 C07C53/50 

FIELD: chemistry.

SUBSTANCE: invention relates to a new connection -1,1,1,2,3,3-hexafluoro-2-iodine-3-methoxypropane, which is used as a semiproduct in the method of obtaining 2-iodine-perfluoro-propionyl-fluoride from perfluoro-propylene, which includes two stages: the interaction of perfluoro-propylene with a source of iodine, such as 2-iodine-perfluoro-propan (perfluoro-isopropylidene), elemental iodine, chloride iodine or bromide iodine and sodium metilatom, using a polar aprotic solvent with producing 1,1,1,2,3,3-hexafluoro-2-iodine-3-methoxypropane, the interaction of the resulting 1,1,1,2,3,3-hexafluoro-2-iodine-3-methoxypropane with pentachloride antimony by boiling with producing 2,3,3,3-tetrafluoro-2-iodine propionyl-fluoride emitting its distillation.

EFFECT: use of available starting materials without the use of aggressive reagents and appropriate equipment, increasing the purity of the semiproduct, and the yield of the product of 2-iodine propionyl-fluoride.

5 cl, 5 ex