The present disclosure relates to a method for producing trifluoroiodomethane (CF.sub.3I) from iodine (I.sub.2) and trifluoroacetic anhydride (TFAA) under photochemical conditions using ultraviolet (UV) light.

The present disclosure relates to a method for producing trifluoroiodomethane (CF.sub.3I) from iodine (I.sub.2) and trifluoroacetic anhydride (TFAA) under photochemical conditions using ultraviolet (UV) light.

A fire suppression blends of CF3I and 2-BTP with mol ratios from 1:5 and 5:1 are capable of passing peak inerting and sub-inerting tests. The CF3I: 2-BTP fire suppression blends can also include carbon dioxide of up to 80% of the fire suppression blend to provide additional cooling.

A fire suppression blends of CF3I and 2-BTP with mol ratios from 1:5 and 5:1 are capable of passing peak inerting and sub-inerting tests. The CF3I: 2-BTP fire suppression blends can also include carbon dioxide of up to 80% of the fire suppression blend to provide additional cooling.

The present application is related to an improved process for synthesising 1-(difluoromethyl)-3-iodobicyclo[1.1.1]pentane from difluoromethyl iodide and [1.1.1]propellane. Difluoromethyl iodide is made by reacting an iodide salt with chlorodifluoroacetic acid in the presence of a solvent such as sulfolane and an inorganic base, [1.1.1]propellane is synthesised by reacting 1,1-dibromo-2,2-cis(chloromethyl)cyclopropane with a reagent such as magnesium, methyllithium or phenyllithium.

The present application is related to an improved process for synthesising 1-(difluoromethyl)-3-iodobicyclo[1.1.1]pentane from difluoromethyl iodide and [1.1.1]propellane. Difluoromethyl iodide is made by reacting an iodide salt with chlorodifluoroacetic acid in the presence of a solvent such as sulfolane and an inorganic base, [1.1.1]propellane is synthesised by reacting 1,1-dibromo-2,2-cis(chloromethyl)cyclopropane with a reagent such as magnesium, methyllithium or phenyllithium.

A composition comprises at least 99.5% by weight of an iodofluorocarbon compound A and at most 0.5% by weight of a compound B selected from water, HF, HI, IF5, I2, O2, CO2, CO and nitrogen. The iodofluorocarbon compound A is of formula (I) (R1)(R2)C(I)(R3) or of formula (II) (R1)(R2)C═C(I)(R3); in which R1, R2 and R3 independently of one another are selected from the group consisting of H, F, I, a C1-C10 alkyl radical, a C3-C10 cycloalkyl radical, a C2-C10 alkenyl radical, a C3-C10 cycloalkenyl radical, and a C6-C10 aryl radical. All radicals are optionally substituted by a fluorine or iodine atom. At least one of the substituents R1, R2 or R3, is F or is a radical as defined above comprising at least one fluorine atom. The iodofluorocarbon compound A is not CF3I.

A composition comprises at least 99.5% by weight of an iodofluorocarbon compound A and at most 0.5% by weight of a compound B selected from water, HF, HI, IF5, I2, O2, CO2, CO and nitrogen. The iodofluorocarbon compound A is of formula (I) (R1)(R2)C(I)(R3) or of formula (II) (R1)(R2)C═C(I)(R3); in which R1, R2 and R3 independently of one another are selected from the group consisting of H, F, I, a C1-C10 alkyl radical, a C3-C10 cycloalkyl radical, a C2-C10 alkenyl radical, a C3-C10 cycloalkenyl radical, and a C6-C10 aryl radical. All radicals are optionally substituted by a fluorine or iodine atom. At least one of the substituents R1, R2 or R3, is F or is a radical as defined above comprising at least one fluorine atom. The iodofluorocarbon compound A is not CF3I.

The present invention relates to a process for producing an iodofluoroalkane compound, comprising the steps of: a) placing a fluoroolefin in contact with hydrogen iodide to form a stream A comprising said iodofluoroalkane compound and unreacted hydrogen iodide, b) separating said stream A into a first stream Bi comprising said iodofluoroalkane compound and a stream B2 comprising unreacted hydrogen iodide, c) recycling stream B2 into step a)

The present invention relates to a process for producing an iodofluoroalkane compound, comprising the steps of: a) placing a fluoroolefin in contact with hydrogen iodide to form a stream A comprising said iodofluoroalkane compound and unreacted hydrogen iodide, b) separating said stream A into a first stream Bi comprising said iodofluoroalkane compound and a stream B2 comprising unreacted hydrogen iodide, c) recycling stream B2 into step a)